* conntrack, NAT and icmp echo reply
From: Denys Fedoryshchenko @ 2012-10-11 9:41 UTC (permalink / raw)
To: netdev, netfilter
Hi all
I have NAT box, with very simple rule
iptables -t nat -I POSTROUTING -s 10.0.0.0/8 -j MASQUERADE
It can be SNAT also, and it works fine, as NAT.
When i generate icmp _reply_ packet, to some host
hping -I ppp0 -1 --icmptype 0 8.8.8.8
It will pass the box, and will exit it without NAT, e.g. with original
IP 10.x.x.x
on outgoing interface, which is not expected behavior IMHO.
Is it a bug or feature?
---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
^ permalink raw reply
* Re: alignment faults in 3.6
From: Måns Rullgård @ 2012-10-11 9:45 UTC (permalink / raw)
To: David Laight
Cc: Måns Rullgård, Jon Masters, linux-arm-kernel, netdev
In-Reply-To: <AE90C24D6B3A694183C094C60CF0A2F6026B7038@saturn3.aculab.com>
"David Laight" <David.Laight@ACULAB.COM> writes:
>> -----Original Message-----
>> From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org] On Behalf Of Måns Rullgård
>> Sent: 11 October 2012 03:27
>> To: Jon Masters
>> Cc: linux-arm-kernel@lists.infradead.org; netdev@vger.kernel.org
>> Subject: Re: alignment faults in 3.6
>>
>> Jon Masters <jonathan@jonmasters.org> writes:
>>
>> > Hi everyone,
>> >
>> > On 10/05/2012 10:33 AM, Rob Herring wrote:
>> >> On 10/05/2012 09:05 AM, Russell King - ARM Linux wrote:
>> >>> On Fri, Oct 05, 2012 at 07:24:44AM -0500, Rob Herring wrote:
>> >>>> On 10/05/2012 03:24 AM, Russell King - ARM Linux wrote:
>> >>>>> Does it matter? I'm just relaying the argument against adding __packed
>> >>>>> which was used before we were forced (by the networking folk) to implement
>> >>>>> the alignment fault handler.
>> >>>>
>> >>>> It doesn't really matter what will be accepted or not as adding __packed
>> >>>> to struct iphdr doesn't fix the problem anyway.
> ...
>> There are exactly two possible solutions:
>>
>> 1. Change the networking code so those structs are always aligned. This
>> might not be (easily) possible.
>> 2. Mark the structs __packed and fix any typecasts like the ones seen in
>> this thread. This will have an adverse effect in cases where the
>> structs are in fact aligned.
>>
>> Both solutions lie squarely in the networking code. It's time to
>> involve that list, or we'll never get anywhere.
>
> It might be enough to use __attribute__((aligned(2))) on some structure
> members (actually does 'ldm' need 8 byte alignment?? - in which case
> aligned(4) is enough).
The aligned attribute can only increase alignment.
--
Måns Rullgård
mans@mansr.com
^ permalink raw reply
* Re: conntrack, NAT and icmp echo reply
From: Eric Dumazet @ 2012-10-11 9:57 UTC (permalink / raw)
To: Denys Fedoryshchenko; +Cc: netdev, netfilter
In-Reply-To: <e457eb3b6f3e357c3681c7af5f504161@visp.net.lb>
On Thu, 2012-10-11 at 12:41 +0300, Denys Fedoryshchenko wrote:
> Hi all
>
> I have NAT box, with very simple rule
> iptables -t nat -I POSTROUTING -s 10.0.0.0/8 -j MASQUERADE
> It can be SNAT also, and it works fine, as NAT.
>
> When i generate icmp _reply_ packet, to some host
> hping -I ppp0 -1 --icmptype 0 8.8.8.8
>
> It will pass the box, and will exit it without NAT, e.g. with original
> IP 10.x.x.x
> on outgoing interface, which is not expected behavior IMHO.
> Is it a bug or feature?
>
It depends, -s 10.0.0.0/8 wont match the rule if the source address
should be 198.23.44.55 I guess ?
I would try the more obvious
iptables -t nat -I POSTROUTING -o device -j MASQUERADE
^ permalink raw reply
* Re: [Xen-devel] compound skb frag pages appearing in start_xmit
From: Sander Eikelenboom @ 2012-10-11 10:00 UTC (permalink / raw)
To: Ian Campbell
Cc: xen-devel, Konrad Rzeszutek Wilk, Eric Dumazet,
netdev@vger.kernel.org, Eric Dumazet
In-Reply-To: <1349942546.14806.7.camel@zakaz.uk.xensource.com>
[-- Attachment #1: Type: text/plain, Size: 6593 bytes --]
Thursday, October 11, 2012, 10:02:26 AM, you wrote:
> On Wed, 2012-10-10 at 15:49 +0100, Sander Eikelenboom wrote:
>> Wednesday, October 10, 2012, 3:09:58 PM, you wrote:
>>
>> > On Wed, 2012-10-10 at 11:13 +0100, Ian Campbell wrote:
>> >> I haven't tackled netfront yet.
>>
>> > I seem to be totally unable to reproduce the equivalent issue on the
>> > netfront xmit side, even though it seems like the loop in
>> > xennet_make_frags ought to be obviously susceptible to it.
>>
>> > Konrad, Sander, are either of you able to repro, e.g. with:
>>
>>
>> Hmrrrmm i don't see any traces, only strange behaviour ..
>>
>> - i can connect to guests by ssh, but it's sluggish, and sometimes stops working
> I saw something like this (ssh sluggish) even with dom0 itself. I'm
> trying to see if I can characterise it enough to reliably bisect it.
> I already switched out xen-unstable for 4.2-testing but that didn't make
> any difference.
>> - The guest seem to keep trying to connect to netback:
>>
>> [ 658.276719] xen_bridge: port 2(vif40.0) entered forwarding state
>> [ 658.282258] xen_bridge: port 2(vif40.0) entered forwarding state
>> [ 663.945964] xen_bridge: port 7(vif39.0) entered forwarding state
>> [ 669.674277] xen_bridge: port 2(vif40.0) entered disabled state
>> [ 669.680290] device vif40.0 left promiscuous mode
>> [ 669.685464] xen_bridge: port 2(vif40.0) entered disabled state
>> [ 672.857222] device vif41.0 entered promiscuous mode
>> [ 673.166254] xen-blkback:ring-ref 8, event-channel 9, protocol 1 (x86_64-abi)
>> [ 673.176368] xen_bridge: port 2(vif41.0) entered forwarding state
>> [ 673.182042] xen_bridge: port 2(vif41.0) entered forwarding state
>> [ 674.439725] xen_bridge: port 7(vif39.0) entered disabled state
>> [ 674.445708] device vif39.0 left promiscuous mode
>> [ 674.450955] xen_bridge: port 7(vif39.0) entered disabled state
>> [ 677.726040] device vif42.0 entered promiscuous mode
>> [ 678.053381] xen-blkback:ring-ref 8, event-channel 9, protocol 1 (x86_64-abi)
>> [ 678.062804] xen_bridge: port 7(vif42.0) entered forwarding state
>> [ 678.068433] xen_bridge: port 7(vif42.0) entered forwarding state
>> [ 688.224736] xen_bridge: port 2(vif41.0) entered forwarding state
>> [ 693.080557] xen_bridge: port 7(vif42.0) entered forwarding state
>> [ 700.786276] xen_bridge: port 7(vif42.0) entered disabled state
>> [ 700.792484] device vif42.0 left promiscuous mode
>> [ 700.802409] xen_bridge: port 7(vif42.0) entered disabled state
>> [ 704.133606] device vif43.0 entered promiscuous mode
>> [ 704.460160] xen-blkback:ring-ref 8, event-channel 9, protocol 1 (x86_64-abi)
>> [ 704.469800] xen_bridge: port 7(vif43.0) entered forwarding state
>> [ 704.475303] xen_bridge: port 7(vif43.0) entered forwarding state
>> [ 719.493788] xen_bridge: port 7(vif43.0) entered forwarding state
>> [ 726.302456] xen_bridge: port 7(vif43.0) entered disabled state
>> [ 726.308898] device vif43.0 left promiscuous mode
>> [ 726.314029] xen_bridge: port 7(vif43.0) entered disabled state
>>
>> All the guests are already up, but this keeps on going and going and going ....
> The domain number seems to be climbing, are you sure something isn't
> (crashing and) restarting?
Probably due to the BUG_ON from the patch below, i changed it into a WARN_ON.
And i seem to hit it, but only in one of the guests at the moment and it triggers quite irregularly.
[ 34.298549] ------------[ cut here ]------------
[ 34.298567] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.298574] Modules linked in:
[ 34.298597] Pid: 1580, comm: sshd Not tainted 3.6.0pre-rc1-20121011 #1
[ 34.298603] Call Trace:
[ 34.298611] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.298617] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.298623] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.298631] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.298637] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.298643] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.298649] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.298656] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 34.298663] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.298668] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.298674] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.298680] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.298687] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.298692] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.298699] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.298705] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.298711] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.298717] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 34.298723] [<ffffffff816d225b>] tcp_push_one+0x2b/0x40
[ 34.298728] [<ffffffff816c2dec>] tcp_sendmsg+0x8dc/0xe20
[ 34.298735] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 34.298740] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 34.298746] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.298753] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 34.298762] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 34.298768] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.298774] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 34.298779] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 34.298786] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 34.298792] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 34.298797] ---[ end trace 2e28eec93b7a8b74 ]---
Complete dmesg from guest attached.
>> > diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
>> > index b06ef81..8a3f770 100644
>> > --- a/drivers/net/xen-netfront.c
>> > +++ b/drivers/net/xen-netfront.c
>> > @@ -462,6 +462,8 @@ static void xennet_make_frags(struct sk_buff *skb, struct net_device *dev,
>> > ref = gnttab_claim_grant_reference(&np->gref_tx_head);
>> > BUG_ON((signed short)ref < 0);
>> >
>> > + BUG_ON(PageCompound(skb_frag_page(frag)));
>> > +
>> > mfn = pfn_to_mfn(page_to_pfn(skb_frag_page(frag)));
>> > gnttab_grant_foreign_access_ref(ref, np->xbdev->otherend_id,
>> > mfn, GNTMAP_readonly);
>>
>> > My repro for netback was just to netcat a wodge of data from dom0->domU
>> > but going the other way doesn't seem to trigger.
>>
>>
>>
[-- Attachment #2: dmesg-netfront.txt --]
[-- Type: text/plain, Size: 177798 bytes --]
[ 0.000000] Initializing cgroup subsys cpuset
[ 0.000000] Initializing cgroup subsys cpu
[ 0.000000] Linux version 3.6.0pre-rc1-20121011 (root@serveerstertje) (gcc version 4.4.5 (Debian 4.4.5-8) ) #1 SMP PREEMPT Thu Oct 11 11:04:38 CEST 2012
[ 0.000000] Command line: root=/dev/xvda1 ro
[ 0.000000] ACPI in unprivileged domain disabled
[ 0.000000] e820: BIOS-provided physical RAM map:
[ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable
[ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved
[ 0.000000] Xen: [mem 0x0000000000100000-0x000000001fffffff] usable
[ 0.000000] NX (Execute Disable) protection: active
[ 0.000000] DMI not present or invalid.
[ 0.000000] e820: update [mem 0x00000000-0x0000ffff] usable ==> reserved
[ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.000000] No AGP bridge found
[ 0.000000] e820: last_pfn = 0x20000 max_arch_pfn = 0x400000000
[ 0.000000] initial memory mapped: [mem 0x00000000-0x037c9fff]
[ 0.000000] Base memory trampoline at [ffff88000009a000] 9a000 size 24576
[ 0.000000] init_memory_mapping: [mem 0x00000000-0x1fffffff]
[ 0.000000] [mem 0x00000000-0x1fffffff] page 4k
[ 0.000000] kernel direct mapping tables up to 0x1fffffff @ [mem 0x029c4000-0x02ac5fff]
[ 0.000000] xen: setting RW the range 2aa6000 - 2ac6000
[ 0.000000] RAMDISK: [mem 0x02ac6000-0x037c9fff]
[ 0.000000] NUMA turned off
[ 0.000000] Faking a node at [mem 0x0000000000000000-0x000000001fffffff]
[ 0.000000] Initmem setup node 0 [mem 0x00000000-0x1fffffff]
[ 0.000000] NODE_DATA [mem 0x1fff5000-0x1fffffff]
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x00010000-0x00ffffff]
[ 0.000000] DMA32 [mem 0x01000000-0xffffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x00010000-0x0009ffff]
[ 0.000000] node 0: [mem 0x00100000-0x1fffffff]
[ 0.000000] On node 0 totalpages: 130960
[ 0.000000] DMA zone: 64 pages used for memmap
[ 0.000000] DMA zone: 6 pages reserved
[ 0.000000] DMA zone: 3914 pages, LIFO batch:0
[ 0.000000] DMA32 zone: 1984 pages used for memmap
[ 0.000000] DMA32 zone: 124992 pages, LIFO batch:31
[ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs
[ 0.000000] No local APIC present
[ 0.000000] APIC: disable apic facility
[ 0.000000] APIC: switched to apic NOOP
[ 0.000000] nr_irqs_gsi: 16
[ 0.000000] e820: [mem 0x20000000-0xffffffff] available for PCI devices
[ 0.000000] Booting paravirtualized kernel on Xen
[ 0.000000] Xen version: 4.3-unstable (preserve-AD)
[ 0.000000] setup_percpu: NR_CPUS:8 nr_cpumask_bits:8 nr_cpu_ids:1 nr_node_ids:1
[ 0.000000] PERCPU: Embedded 27 pages/cpu @ffff88001fc00000 s81088 r8192 d21312 u2097152
[ 0.000000] pcpu-alloc: s81088 r8192 d21312 u2097152 alloc=1*2097152
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 128906
[ 0.000000] Policy zone: DMA32
[ 0.000000] Kernel command line: root=/dev/xvda1 ro
[ 0.000000] PID hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.000000] __ex_table already sorted, skipping sort
[ 0.000000] Checking aperture...
[ 0.000000] No AGP bridge found
[ 0.000000] Memory: 476724k/524288k available (7472k kernel code, 448k absent, 47116k reserved, 5626k data, 696k init)
[ 0.000000] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] RCU dyntick-idle grace-period acceleration is enabled.
[ 0.000000] Additional per-CPU info printed with stalls.
[ 0.000000] RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
[ 0.000000] NR_IRQS:4352 nr_irqs:256 16
[ 0.000000] Console: colour dummy device 80x25
[ 0.000000] console [tty0] enabled
[ 0.000000] console [hvc0] enabled
[ 0.000000] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8
[ 0.000000] ... MAX_LOCK_DEPTH: 48
[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191
[ 0.000000] ... CLASSHASH_SIZE: 4096
[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384
[ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768
[ 0.000000] ... CHAINHASH_SIZE: 16384
[ 0.000000] memory used by lock dependency info: 5855 kB
[ 0.000000] per task-struct memory footprint: 1920 bytes
[ 0.000000] Xen: using vcpuop timer interface
[ 0.000000] installing Xen timer for CPU 0
[ 0.000000] tsc: Detected 3200.144 MHz processor
[ 0.003333] Calibrating delay loop (skipped), value calculated using timer frequency.. 6402.96 BogoMIPS (lpj=10667146)
[ 0.003333] pid_max: default: 32768 minimum: 301
[ 0.003333] Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
[ 0.003333] Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
[ 0.003333] Mount-cache hash table entries: 256
[ 0.003333] Initializing cgroup subsys cpuacct
[ 0.003333] Initializing cgroup subsys freezer
[ 0.003333] Initializing cgroup subsys blkio
[ 0.003333] tseg: 0000000000
[ 0.003333] CPU: Physical Processor ID: 0
[ 0.003333] CPU: Processor Core ID: 1
[ 0.003333] Last level iTLB entries: 4KB 512, 2MB 16, 4MB 8
[ 0.003333] Last level dTLB entries: 4KB 512, 2MB 128, 4MB 64
[ 0.003333] tlb_flushall_shift: 4
[ 0.025363] Freeing SMP alternatives: 24k freed
[ 0.026174] Performance Events:
[ 0.026187] no APIC, boot with the "lapic" boot parameter to force-enable it.
[ 0.026193] no hardware sampling interrupt available.
[ 0.026215] Broken PMU hardware detected, using software events only.
[ 0.026220] Failed to access perfctr msr (MSR c0010004 is 2185c52b638f)
[ 0.043549] Brought up 1 CPUs
[ 0.043634] NMI watchdog: disabled (cpu0): hardware events not enabled
[ 0.044079] Grant tables using version 2 layout.
[ 0.044103] Grant table initialized
[ 0.044225] NET: Registered protocol family 16
[ 0.045499] PCI: setting up Xen PCI frontend stub
[ 0.045499] PCI: pci_cache_line_size set to 64 bytes
[ 0.063094] bio: create slab <bio-0> at 0
[ 0.063323] ACPI: Interpreter disabled.
[ 0.063517] xen/balloon: Initialising balloon driver.
[ 0.063594] xen-balloon: Initialising balloon driver.
[ 0.063594] vgaarb: loaded
[ 0.063795] SCSI subsystem initialized
[ 0.063931] libata version 3.00 loaded.
[ 0.064210] usbcore: registered new interface driver usbfs
[ 0.064270] usbcore: registered new interface driver hub
[ 0.064346] usbcore: registered new device driver usb
[ 0.064482] Linux video capture interface: v2.00
[ 0.064809] Advanced Linux Sound Architecture Driver Initialized.
[ 0.064815] PCI: System does not support PCI
[ 0.064819] PCI: System does not support PCI
[ 0.067137] Switching to clocksource xen
[ 0.067388] pnp: PnP ACPI: disabled
[ 0.071247] NET: Registered protocol family 2
[ 0.071479] TCP established hash table entries: 16384 (order: 6, 262144 bytes)
[ 0.071680] TCP bind hash table entries: 16384 (order: 8, 1048576 bytes)
[ 0.072505] TCP: Hash tables configured (established 16384 bind 16384)
[ 0.072557] TCP: reno registered
[ 0.072574] UDP hash table entries: 256 (order: 3, 40960 bytes)
[ 0.072612] UDP-Lite hash table entries: 256 (order: 3, 40960 bytes)
[ 0.072755] NET: Registered protocol family 1
[ 0.072767] PCI: CLS 0 bytes, default 64
[ 0.072912] Trying to unpack rootfs image as initramfs...
[ 0.094234] Freeing initrd memory: 13328k freed
[ 0.101194] DMA-API: preallocated 32768 debug entries
[ 0.101206] DMA-API: debugging enabled by kernel config
[ 0.101420] platform rtc_cmos: registered platform RTC device (no PNP device found)
[ 0.102549] sha1_ssse3: Neither AVX nor SSSE3 is available/usable.
[ 0.102915] audit: initializing netlink socket (disabled)
[ 0.102948] type=2000 audit(1349948050.825:1): initialized
[ 0.103470] HugeTLB registered 2 MB page size, pre-allocated 0 pages
[ 0.108912] VFS: Disk quotas dquot_6.5.2
[ 0.109021] Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
[ 0.110540] NTFS driver 2.1.30 [Flags: R/W].
[ 0.110758] fuse init (API version 7.20)
[ 0.110960] msgmni has been set to 957
[ 0.111673] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[ 0.111695] io scheduler noop registered
[ 0.111699] io scheduler deadline registered
[ 0.111880] io scheduler cfq registered (default)
[ 0.112908] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
[ 0.112912] crc32: self tests passed, processed 225944 bytes in 112580 nsec
[ 0.113021] crc32c: CRC_LE_BITS = 64
[ 0.117226] crc32c: self tests passed, processed 225944 bytes in 50333 nsec
[ 0.117576] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
[ 0.117797] pciehp: PCI Express Hot Plug Controller Driver version: 0.4
[ 0.118013] usbcore: registered new interface driver udlfb
[ 0.118467] Event-channel device installed.
[ 0.119213] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 0.120055] Linux agpgart interface v0.103
[ 0.120374] Hangcheck: starting hangcheck timer 0.9.1 (tick is 180 seconds, margin is 60 seconds).
[ 0.120383] Hangcheck: Using getrawmonotonic().
[ 0.120443] [drm] Initialized drm 1.1.0 20060810
[ 0.123268] brd: module loaded
[ 0.124859] loop: module loaded
[ 0.127778] tun: Universal TUN/TAP device driver, 1.6
[ 0.127792] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[ 0.127873] e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
[ 0.127880] e1000: Copyright (c) 1999-2006 Intel Corporation.
[ 0.128004] Initialising Xen virtual ethernet driver.
[ 0.133058] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 0.133071] ehci_hcd: block sizes: qh 104 qtd 96 itd 192 sitd 96
[ 0.133130] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 0.133136] ohci_hcd: block sizes: ed 80 td 96
[ 0.133188] uhci_hcd: USB Universal Host Controller Interface driver
[ 0.133301] usbcore: registered new interface driver usblp
[ 0.133306] Initializing USB Mass Storage driver...
[ 0.133359] usbcore: registered new interface driver usb-storage
[ 0.133364] USB Mass Storage support registered.
[ 0.133497] usbcore: registered new interface driver usbserial
[ 0.133568] usbcore: registered new interface driver cp210x
[ 0.133701] usbserial: USB Serial support registered for cp210x
[ 0.133758] usbcore: registered new interface driver cypress_m8
[ 0.133815] usbserial: USB Serial support registered for DeLorme Earthmate USB
[ 0.133872] usbserial: USB Serial support registered for HID->COM RS232 Adapter
[ 0.133931] usbserial: USB Serial support registered for Nokia CA-42 V2 Adapter
[ 0.133989] usbcore: registered new interface driver mos7720
[ 0.134045] usbserial: USB Serial support registered for Moschip 2 port adapter
[ 0.134102] usbcore: registered new interface driver mos7840
[ 0.134158] usbserial: USB Serial support registered for Moschip 7840/7820 USB Serial Driver
[ 0.134360] i8042: PNP: No PS/2 controller found. Probing ports directly.
[ 0.135190] i8042: No controller found
[ 0.135284] mousedev: PS/2 mouse device common for all mice
[ 0.137520] blkfront: xvda: flush diskcache: enabled
[ 0.196054] rtc_cmos rtc_cmos: rtc core: registered rtc_cmos as rtc0
[ 0.196438] ida_remove called for id=0 which is not allocated.
[ 0.196448] rtc_cmos: probe of rtc_cmos failed with error -38
[ 0.197009] lirc_dev: IR Remote Control driver registered, major 250
[ 0.197027] IR NEC protocol handler initialized
[ 0.197031] IR RC5(x) protocol handler initialized
[ 0.197035] IR RC6 protocol handler initialized
[ 0.197038] IR JVC protocol handler initialized
[ 0.197041] IR Sony protocol handler initialized
[ 0.197045] IR RC5 (streamzap) protocol handler initialized
[ 0.197049] IR SANYO protocol handler initialized
[ 0.197052] IR MCE Keyboard/mouse protocol handler initialized
[ 0.197057] IR LIRC bridge handler initialized
[ 0.197268] sp5100_tco: SP5100 TCO WatchDog Timer Driver v0.01
[ 0.197382] xen_wdt: Xen WatchDog Timer Driver v0.01
[ 0.197578] xen_wdt: initialized (timeout=60s, nowayout=0)
[ 0.197820] device-mapper: ioctl: 4.23.0-ioctl (2012-07-25) initialised: dm-devel@redhat.com
[ 0.199123] usbcore: registered new interface driver usbhid
[ 0.199129] usbhid: USB HID core driver
[ 0.202313] usbcore: registered new interface driver snd-usb-audio
[ 0.202373] usbcore: registered new interface driver snd-ua101
[ 0.202434] usbcore: registered new interface driver snd-usb-usx2y
[ 0.202488] usbcore: registered new interface driver snd-usb-caiaq
[ 0.202543] usbcore: registered new interface driver snd-usb-6fire
[ 0.202575] Netfilter messages via NETLINK v0.30.
[ 0.202583] nfnl_acct: registering with nfnetlink.
[ 0.202626] nf_conntrack version 0.5.0 (3828 buckets, 15312 max)
[ 0.202950] ctnetlink v0.93: registering with nfnetlink.
[ 0.203250] xt_time: kernel timezone is -0000
[ 0.316848] ip_set: protocol 6
[ 0.316875] IPVS: Registered protocols ()
[ 0.316996] IPVS: Connection hash table configured (size=4096, memory=64Kbytes)
[ 0.317068] IPVS: Creating netns size=1896 id=0
[ 0.317100] IPVS: ipvs loaded.
[ 0.317213] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 0.317279] TCP: cubic registered
[ 0.317285] NET: Registered protocol family 17
[ 0.317340] Bridge firewalling registered
[ 0.317359] Ebtables v2.0 registered
[ 0.317617] registered taskstats version 1
[ 0.782134] xvda: xvda1 xvda2
[ 0.817140] console [netcon0] enabled
[ 0.817166] netconsole: network logging started
[ 0.817368] ALSA device list:
[ 0.817385] No soundcards found.
[ 0.820425] Freeing unused kernel memory: 696k freed
[ 0.820887] Write protecting the kernel read-only data: 12288k
[ 0.837830] Freeing unused kernel memory: 708k freed
[ 0.839937] Freeing unused kernel memory: 1076k freed
[ 3.871581] EXT4-fs (xvda1): mounted filesystem with ordered data mode. Opts: (null)
[ 13.486115] Adding 769020k swap on /dev/xvda2. Priority:-1 extents:1 across:769020k SS
[ 13.529134] EXT4-fs (xvda1): re-mounted. Opts: (null)
[ 14.449206] EXT4-fs (xvda1): re-mounted. Opts: errors=remount-ro
[ 22.967397] tty_init_dev: 2 callbacks suppressed
[ 22.967692] ttyS0: LSR safety check engaged!
[ 22.970334] ttyS0: LSR safety check engaged!
[ 22.972956] ttyS1: LSR safety check engaged!
[ 22.974811] ttyS1: LSR safety check engaged!
[ 34.298549] ------------[ cut here ]------------
[ 34.298567] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.298574] Modules linked in:
[ 34.298597] Pid: 1580, comm: sshd Not tainted 3.6.0pre-rc1-20121011 #1
[ 34.298603] Call Trace:
[ 34.298611] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.298617] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.298623] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.298631] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.298637] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.298643] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.298649] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.298656] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 34.298663] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.298668] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.298674] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.298680] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.298687] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.298692] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.298699] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.298705] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.298711] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.298717] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 34.298723] [<ffffffff816d225b>] tcp_push_one+0x2b/0x40
[ 34.298728] [<ffffffff816c2dec>] tcp_sendmsg+0x8dc/0xe20
[ 34.298735] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 34.298740] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 34.298746] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.298753] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 34.298762] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 34.298768] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.298774] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 34.298779] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 34.298786] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 34.298792] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 34.298797] ---[ end trace 2e28eec93b7a8b74 ]---
[ 34.298825] ------------[ cut here ]------------
[ 34.298832] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.298838] Modules linked in:
[ 34.298843] Pid: 1580, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.298848] Call Trace:
[ 34.298852] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.298858] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.298864] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.298870] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.298876] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.298881] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.298887] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.298893] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 34.298899] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.298904] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.298910] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.298916] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.298921] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.298927] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.298932] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.298938] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.298943] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.298949] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 34.298955] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 34.298961] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 34.298966] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 34.298972] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 34.298977] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.298983] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 34.298988] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 34.298994] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.299000] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 34.299005] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 34.299011] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 34.299017] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 34.299022] ---[ end trace 2e28eec93b7a8b75 ]---
[ 34.299036] ------------[ cut here ]------------
[ 34.299042] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.299047] Modules linked in:
[ 34.299052] Pid: 1580, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.299057] Call Trace:
[ 34.299061] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.299071] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.299077] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.299084] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.299089] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.299095] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.299101] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.299106] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 34.299112] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.299118] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.299124] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.299129] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.299135] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.299140] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.299146] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.299152] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.299157] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.299163] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 34.299169] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 34.299174] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 34.299180] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 34.299185] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 34.299191] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.299196] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 34.299202] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 34.299208] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.299213] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 34.299219] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 34.299224] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 34.299239] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 34.299243] ---[ end trace 2e28eec93b7a8b76 ]---
[ 34.794592] ------------[ cut here ]------------
[ 34.794615] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.794623] Modules linked in:
[ 34.794632] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.794640] Call Trace:
[ 34.794644] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.794660] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.794667] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.794677] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.794685] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.794693] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.794701] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.794710] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 34.794719] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.794730] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.794742] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.794750] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.794757] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.794765] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.794773] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.794781] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.794788] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.794796] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 34.794804] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 34.794812] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 34.794819] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 34.794827] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 34.794838] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.794845] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 34.794854] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 34.794862] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.794869] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 34.794876] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.794884] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.794892] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 34.794900] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.794908] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 34.794915] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 34.794922] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 34.794930] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 34.794937] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 34.794945] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.794953] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 34.794961] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 34.794968] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 34.794976] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 34.794990] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 34.794998] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 34.795006] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 34.795014] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 34.795021] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 34.795028] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 34.795037] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 34.795044] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 34.795050] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 34.795063] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 34.795072] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 34.795080] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 34.795087] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 34.795094] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 34.795101] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 34.795111] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 34.795119] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 34.795126] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 34.795135] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 34.795142] ---[ end trace 2e28eec93b7a8b77 ]---
[ 34.795170] ------------[ cut here ]------------
[ 34.795178] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.795186] Modules linked in:
[ 34.795192] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.795199] Call Trace:
[ 34.795203] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.795215] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.795223] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.795231] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.795239] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.795247] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.795254] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.795262] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 34.795270] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.795278] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.795285] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.795293] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.795300] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.795307] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.795315] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.795322] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.795330] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.795337] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 34.795345] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 34.795354] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 34.795362] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 34.795369] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 34.795377] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.795384] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 34.795392] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 34.795399] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.795406] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 34.795413] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.795420] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.795429] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 34.795440] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.795452] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 34.795459] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 34.795466] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 34.795473] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 34.795482] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 34.795490] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.795497] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 34.795505] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 34.795513] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 34.795520] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 34.795529] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 34.795536] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 34.795544] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 34.795551] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 34.795558] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 34.795565] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 34.795572] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 34.795580] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 34.795586] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 34.795598] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 34.795606] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 34.795613] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 34.795620] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 34.795627] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 34.795633] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 34.795641] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 34.795649] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 34.795656] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 34.795665] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 34.795672] ---[ end trace 2e28eec93b7a8b78 ]---
[ 34.797450] ------------[ cut here ]------------
[ 34.797464] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.797474] Modules linked in:
[ 34.797482] Pid: 1532, comm: klogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.797489] Call Trace:
[ 34.797493] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.797506] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.797513] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.797522] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.797530] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.797537] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.797545] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.797554] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 34.797562] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.797570] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.797578] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.797587] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.797594] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.797601] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.797609] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.797617] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.797624] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.797632] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 34.797640] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 34.797648] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 34.797656] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 34.797663] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 34.797671] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 34.797678] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.797686] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 34.797693] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 34.797701] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.797708] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 34.797715] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.797723] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.797731] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 34.797743] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.797751] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 34.797759] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 34.797766] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 34.797773] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 34.797780] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 34.797788] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.797796] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 34.797804] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 34.797811] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 34.797819] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 34.797827] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 34.797835] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 34.797842] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 34.797849] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 34.797856] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 34.797863] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 34.797871] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 34.797879] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 34.797885] <EOI>
[ 34.797889] ---[ end trace 2e28eec93b7a8b79 ]---
[ 34.797917] ------------[ cut here ]------------
[ 34.797925] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.797932] Modules linked in:
[ 34.797939] Pid: 1532, comm: klogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.797947] Call Trace:
[ 34.797950] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.797962] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.797970] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.797978] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.797986] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.797994] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.798001] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.798012] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 34.798019] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.798027] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.798035] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.798043] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.798050] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.798057] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.798065] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.798072] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.798080] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.798087] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 34.798095] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 34.798103] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 34.798111] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 34.798119] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 34.798126] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 34.798134] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.798141] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 34.798149] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 34.798156] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.798164] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 34.798171] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.798178] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.798186] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 34.798194] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.798202] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 34.798210] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 34.798220] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 34.798227] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 34.798234] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 34.798242] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.798249] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 34.798257] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 34.798265] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 34.798276] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 34.798285] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 34.798292] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 34.798300] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 34.798307] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 34.798314] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 34.798321] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 34.798328] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 34.798335] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 34.798342] <EOI>
[ 34.798345] ---[ end trace 2e28eec93b7a8b7a ]---
[ 34.798368] ------------[ cut here ]------------
[ 34.798375] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 34.798383] Modules linked in:
[ 34.798388] Pid: 1532, comm: klogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 34.798396] Call Trace:
[ 34.798400] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 34.798411] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 34.798418] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 34.798426] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 34.798434] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 34.798442] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 34.798449] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 34.798457] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 34.798465] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 34.798472] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 34.798480] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 34.798487] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 34.798494] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 34.798502] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 34.798510] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 34.798518] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 34.798526] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 34.798534] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 34.798541] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 34.798550] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 34.798558] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 34.798565] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 34.798573] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 34.798580] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.798588] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 34.798595] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 34.798603] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 34.798610] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 34.798617] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 34.798624] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.798633] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 34.798640] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 34.798648] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 34.798656] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 34.798663] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 34.798670] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 34.798678] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 34.798685] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 34.798693] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 34.798701] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 34.798708] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 34.798716] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 34.798725] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 34.798732] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 34.798739] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 34.798747] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 34.798754] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 34.798761] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 34.798768] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 34.798776] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 34.798782] <EOI>
[ 34.798786] ---[ end trace 2e28eec93b7a8b7b ]---
[ 35.363444] ------------[ cut here ]------------
[ 35.363461] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 35.363468] Modules linked in:
[ 35.363474] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 35.363480] Call Trace:
[ 35.363483] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 35.363495] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 35.363500] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 35.363509] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 35.363515] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 35.363522] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 35.363528] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 35.363535] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 35.363542] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 35.363548] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 35.363555] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 35.363560] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 35.363566] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 35.363571] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 35.363578] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 35.363585] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 35.363591] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 35.363597] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 35.363603] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 35.363609] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 35.363615] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 35.363620] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 35.363626] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 35.363632] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 35.363637] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 35.363643] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 35.363649] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 35.363656] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 35.363662] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 35.363668] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 35.363673] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 35.363680] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 35.363686] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 35.363691] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 35.363701] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 35.363707] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 35.363713] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 35.363719] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 35.363724] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 35.363729] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 35.363737] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 35.363743] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 35.363749] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 35.363759] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 35.363764] ---[ end trace 2e28eec93b7a8b7c ]---
[ 36.500221] ------------[ cut here ]------------
[ 36.500267] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 36.500293] Modules linked in:
[ 36.500315] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 36.500339] Call Trace:
[ 36.500351] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 36.500396] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 36.500420] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 36.500447] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 36.500471] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 36.500494] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 36.500516] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 36.500541] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 36.500570] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 36.500594] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 36.500619] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 36.500641] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 36.500662] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 36.500684] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 36.500709] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 36.500732] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 36.500755] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 36.500779] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 36.500803] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 36.500827] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 36.500850] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 36.500874] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 36.500897] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 36.500917] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 36.500938] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 36.500962] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 36.500985] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 36.501011] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 36.501034] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 36.501055] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 36.501077] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 36.501101] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 36.501124] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 36.501143] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 36.501181] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 36.501205] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 36.501228] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 36.501249] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 36.501270] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 36.501290] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 36.501318] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 36.501341] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 36.501364] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 36.501388] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 36.501409] ---[ end trace 2e28eec93b7a8b7d ]---
[ 38.773510] ------------[ cut here ]------------
[ 38.773528] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 38.773535] Modules linked in:
[ 38.773542] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 38.773548] Call Trace:
[ 38.773552] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 38.773564] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 38.773570] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 38.773582] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 38.773589] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 38.773594] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 38.773600] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 38.773607] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 38.773613] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 38.773619] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 38.773625] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 38.773631] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 38.773636] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 38.773643] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 38.773649] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 38.773656] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 38.773662] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 38.773668] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 38.773674] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 38.773680] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 38.773685] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 38.773691] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 38.773697] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 38.773702] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 38.773707] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 38.773713] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 38.773719] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 38.773726] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 38.773732] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 38.773738] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 38.773743] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 38.773751] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 38.773756] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 38.773761] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 38.773771] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 38.773778] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 38.773784] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 38.773789] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 38.773794] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 38.773800] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 38.773807] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 38.773813] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 38.773819] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 38.773825] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 38.773831] ---[ end trace 2e28eec93b7a8b7e ]---
[ 43.320207] ------------[ cut here ]------------
[ 43.320235] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 43.320244] Modules linked in:
[ 43.320252] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 43.320261] Call Trace:
[ 43.320265] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 43.320280] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 43.320288] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 43.320298] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 43.320307] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 43.320315] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 43.320323] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 43.320337] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 43.320346] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 43.320354] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 43.320362] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 43.320370] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 43.320377] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 43.320385] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 43.320393] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 43.320402] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 43.320409] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 43.320417] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 43.320425] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 43.320433] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 43.320441] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 43.320449] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 43.320456] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 43.320463] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 43.320470] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 43.320479] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 43.320487] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 43.320496] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 43.320503] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 43.320511] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 43.320518] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 43.320528] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 43.320535] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 43.320542] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 43.320555] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 43.320564] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 43.320571] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 43.320578] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 43.320586] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 43.320592] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 43.320602] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 43.320610] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 43.320617] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 43.320626] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 43.320633] ---[ end trace 2e28eec93b7a8b7f ]---
[ 52.400126] ------------[ cut here ]------------
[ 52.400146] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 52.400152] Modules linked in:
[ 52.400158] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 52.400164] Call Trace:
[ 52.400167] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 52.400178] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 52.400183] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 52.400191] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 52.400197] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 52.400202] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 52.400208] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 52.400214] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 52.400221] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 52.400226] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 52.400232] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 52.400237] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 52.400242] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 52.400247] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 52.400254] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 52.400261] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 52.400266] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 52.400272] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 52.400278] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 52.400283] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 52.400288] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 52.400293] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 52.400299] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 52.400303] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 52.400308] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 52.400313] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 52.400319] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 52.400325] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 52.400330] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 52.400336] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 52.400341] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 52.400347] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 52.400352] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 52.400356] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 52.400366] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 52.400371] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 52.400377] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 52.400382] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 52.400387] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 52.400391] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 52.400398] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 52.400403] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 52.400408] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 52.400414] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 52.400420] ---[ end trace 2e28eec93b7a8b80 ]---
[ 70.560242] ------------[ cut here ]------------
[ 70.560332] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 70.560360] Modules linked in:
[ 70.560381] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 70.560408] Call Trace:
[ 70.560421] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 70.560462] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 70.560485] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 70.560512] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 70.560536] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 70.560559] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 70.560581] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 70.560605] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 70.560630] [<ffffffff816b96ad>] ip_finish_output+0x39d/0x530
[ 70.560653] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 70.560679] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 70.560701] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 70.560722] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 70.560744] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 70.560768] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 70.560791] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 70.560812] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 70.560835] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 70.560859] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 70.560882] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 70.560905] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 70.560928] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 70.560951] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 70.560972] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 70.560993] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 70.561017] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 70.561040] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 70.561064] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 70.561087] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 70.561108] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 70.561130] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 70.561153] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 70.561176] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 70.561195] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 70.561232] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 70.561256] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 70.561278] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 70.561299] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 70.561319] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 70.561339] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 70.561390] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 70.561414] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 70.561436] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 70.561462] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 70.561483] ---[ end trace 2e28eec93b7a8b81 ]---
[ 106.933420] ------------[ cut here ]------------
[ 106.933445] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 106.933452] Modules linked in:
[ 106.933458] Pid: 1954, comm: gzip Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 106.933463] Call Trace:
[ 106.933466] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 106.933476] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 106.933482] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 106.933490] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 106.933496] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 106.933501] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 106.933506] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 106.933512] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 106.933519] [<ffffffff816b96ad>] ip_finish_output+0x39d/0x530
[ 106.933525] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 106.933530] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 106.933535] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 106.933540] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 106.933545] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 106.933551] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 106.933557] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 106.933562] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 106.933567] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 106.933573] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 106.933578] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 106.933584] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 106.933590] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 106.933595] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 106.933600] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 106.933604] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 106.933610] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 106.933615] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 106.933621] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 106.933627] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 106.933632] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 106.933637] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 106.933643] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 106.933648] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 106.933653] <EOI>
[ 106.933655] ---[ end trace 2e28eec93b7a8b82 ]---
[ 179.680315] ------------[ cut here ]------------
[ 179.680344] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 179.680357] Modules linked in:
[ 179.680369] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 179.680381] Call Trace:
[ 179.680387] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 179.680409] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 179.680420] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 179.680437] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 179.680449] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 179.680461] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 179.680472] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 179.680485] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 179.680498] [<ffffffff816b96ad>] ip_finish_output+0x39d/0x530
[ 179.680511] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 179.680523] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 179.680533] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 179.680544] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 179.680555] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 179.680567] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 179.680579] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 179.680591] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 179.680603] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 179.680615] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 179.680627] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 179.680639] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 179.680651] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 179.680662] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 179.680673] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 179.680683] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 179.680696] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 179.680707] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 179.680720] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 179.680732] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 179.680743] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 179.680754] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 179.680766] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 179.680777] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 179.680786] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 179.680806] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 179.680818] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 179.680830] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 179.680841] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 179.680851] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 179.680861] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 179.680875] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 179.680886] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 179.680898] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 179.680911] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 179.680922] ---[ end trace 2e28eec93b7a8b83 ]---
[ 199.302239] tty_init_dev: 19 callbacks suppressed
[ 300.148171] ------------[ cut here ]------------
[ 300.148226] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 300.148255] Modules linked in:
[ 300.148278] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 300.148304] Call Trace:
[ 300.148318] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 300.148362] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 300.148386] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 300.148415] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 300.148441] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 300.148464] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 300.148488] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 300.148514] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 300.148539] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 300.148565] [<ffffffff816ad1be>] ? ipv4_neigh_lookup+0x3e/0x150
[ 300.148588] [<ffffffff8162ad37>] neigh_update+0x297/0x5e0
[ 300.148610] [<ffffffff8162adc2>] ? neigh_update+0x322/0x5e0
[ 300.148633] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 300.148661] [<ffffffff8106e756>] ? local_bh_enable+0xc6/0x160
[ 300.148702] [<ffffffff816e2f55>] arp_process+0x2e5/0x700
[ 300.148725] [<ffffffff810ad345>] ? debug_check_no_locks_freed+0x115/0x1d0
[ 300.148751] [<ffffffff816e3445>] arp_rcv+0xd5/0x140
[ 300.148773] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 300.148796] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 300.148820] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 300.148845] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 300.148870] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 300.148896] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 300.148920] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 300.148947] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 300.148971] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 300.148995] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 300.149019] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 300.149042] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 300.149064] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 300.149089] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 300.149113] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 300.149133] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 300.149172] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 300.149198] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 300.149222] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 300.149245] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 300.149267] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 300.149288] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 300.149316] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 300.149340] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 300.149364] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 300.149391] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 300.149413] ---[ end trace 2e28eec93b7a8b84 ]---
[ 312.591132] ------------[ cut here ]------------
[ 312.591164] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 312.591171] Modules linked in:
[ 312.591177] Pid: 2159, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 312.591183] Call Trace:
[ 312.591191] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 312.591213] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 312.591219] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 312.591226] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 312.591233] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 312.591239] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 312.591244] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 312.591251] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 312.591259] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 312.591264] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 312.591270] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 312.591276] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 312.591281] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 312.591286] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 312.591293] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 312.591299] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 312.591306] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 312.591312] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 312.591317] [<ffffffff816d225b>] tcp_push_one+0x2b/0x40
[ 312.591324] [<ffffffff816c2dec>] tcp_sendmsg+0x8dc/0xe20
[ 312.591331] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 312.591336] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 312.591342] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 312.591349] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 312.591356] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 312.591365] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 312.591371] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 312.591376] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 312.591383] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 312.591391] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 312.591396] ---[ end trace 2e28eec93b7a8b85 ]---
[ 312.591429] ------------[ cut here ]------------
[ 312.591435] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 312.591441] Modules linked in:
[ 312.591445] Pid: 2159, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 312.591451] Call Trace:
[ 312.591457] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 312.591463] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 312.591468] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 312.591475] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 312.591481] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 312.591487] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 312.591492] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 312.591498] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 312.591504] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 312.591510] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 312.591516] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 312.591521] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 312.591526] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 312.591532] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 312.591538] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 312.591544] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 312.591549] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 312.591555] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 312.591560] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 312.591566] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 312.591572] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 312.591578] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 312.591583] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 312.591588] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 312.591594] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 312.591600] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 312.591606] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 312.591611] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 312.591617] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 312.591623] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 312.591627] ---[ end trace 2e28eec93b7a8b86 ]---
[ 312.591645] ------------[ cut here ]------------
[ 312.591651] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 312.591657] Modules linked in:
[ 312.591662] Pid: 2159, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 312.591667] Call Trace:
[ 312.591671] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 312.591677] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 312.591682] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 312.591688] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 312.591694] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 312.591700] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 312.591705] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 312.591711] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 312.591717] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 312.591726] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 312.591732] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 312.591737] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 312.591743] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 312.591748] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 312.591754] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 312.591759] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 312.591765] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 312.591770] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 312.591776] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 312.591782] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 312.591788] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 312.591793] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 312.591799] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 312.591804] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 312.591810] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 312.591816] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 312.591822] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 312.591827] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 312.591833] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 312.591839] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 312.591843] ---[ end trace 2e28eec93b7a8b87 ]---
[ 313.048431] ------------[ cut here ]------------
[ 313.048487] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.048514] Modules linked in:
[ 313.048536] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.048560] Call Trace:
[ 313.048573] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.048614] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.048638] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.048665] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.048689] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.048711] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.048734] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.048758] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.048783] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.048806] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.048829] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.048850] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.048872] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.048896] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.048920] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.048943] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.048965] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.048988] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.049011] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 313.049034] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 313.049057] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 313.049079] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 313.049102] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.049123] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 313.049147] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 313.049169] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.049191] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 313.049212] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 313.049233] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.049257] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 313.049280] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.049304] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 313.049326] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 313.049347] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 313.049368] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 313.049393] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 313.049416] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 313.049440] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 313.049463] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 313.049486] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 313.049508] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 313.049534] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 313.049557] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 313.049579] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.049602] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.049623] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.049645] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.049668] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.049690] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.049709] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.049745] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.049769] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 313.049791] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 313.049812] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 313.049832] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 313.049852] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 313.049878] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 313.049901] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 313.049928] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 313.049952] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 313.049974] ---[ end trace 2e28eec93b7a8b88 ]---
[ 313.050054] ------------[ cut here ]------------
[ 313.050077] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.050102] Modules linked in:
[ 313.050121] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.050143] Call Trace:
[ 313.050153] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.050187] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.050210] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.050234] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.050257] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.050280] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.050302] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.050325] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.050348] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.050373] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.050397] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.050418] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.050439] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.050461] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.050484] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.050506] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.050527] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.050550] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.050574] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 313.050598] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 313.050621] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 313.050643] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 313.050666] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.050688] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 313.050710] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 313.050733] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.050755] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 313.050776] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 313.050797] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.050821] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 313.050844] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.050869] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 313.050891] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 313.050913] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 313.050934] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 313.050956] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 313.050979] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 313.051001] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 313.051024] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 313.051047] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 313.051070] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 313.051095] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 313.051117] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 313.051139] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.051161] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.051181] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.051202] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.051223] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.051246] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.051265] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.051301] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.051325] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 313.051347] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 313.051369] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 313.051388] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 313.051408] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 313.051432] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 313.051454] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 313.051476] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 313.051503] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 313.051523] ---[ end trace 2e28eec93b7a8b89 ]---
[ 313.053645] ------------[ cut here ]------------
[ 313.053684] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.053707] Modules linked in:
[ 313.053729] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.053751] Call Trace:
[ 313.053762] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.053798] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.053820] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.053845] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.053869] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.053891] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.053913] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.053936] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.053960] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.053985] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.054010] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.054031] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.054053] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.054074] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.054097] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.054120] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.054141] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.054164] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.054186] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 313.054211] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 313.054234] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 313.054257] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 313.054280] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 313.054303] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.054325] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 313.054347] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 313.054370] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.054391] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 313.054412] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 313.054433] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.054458] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 313.054481] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.054505] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 313.054527] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 313.054548] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 313.054569] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 313.054591] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 313.054613] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 313.054636] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 313.054659] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 313.054682] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 313.054705] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 313.054730] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 313.054752] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 313.054774] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.054795] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.054816] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.054836] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.054858] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.054881] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.054899] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.054937] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.054961] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 313.054985] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 313.055007] [<ffffffff81008f99>] ? xen_irq_enable_direct_reloc+0x4/0x4
[ 313.055031] [<ffffffff81749146>] ? ia32_cstar_target+0x16/0x8c
[ 313.055049] ---[ end trace 2e28eec93b7a8b8a ]---
[ 313.055115] ------------[ cut here ]------------
[ 313.055137] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.055160] Modules linked in:
[ 313.055179] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.055204] Call Trace:
[ 313.055215] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.055248] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.055271] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.055296] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.055319] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.055342] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.055364] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.055387] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.055411] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.055434] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.055458] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.055479] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.055501] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.055524] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.055547] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.055569] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.055591] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.055615] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.055637] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 313.055662] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 313.055686] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 313.055709] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 313.055732] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 313.055760] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.055782] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 313.055804] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 313.055828] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.055849] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 313.055870] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 313.055892] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.055917] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 313.055940] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.055965] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 313.055987] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 313.056009] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 313.056030] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 313.056052] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 313.056075] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 313.056098] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 313.056121] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 313.056145] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 313.056168] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 313.056193] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 313.056216] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 313.056238] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.056260] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.056281] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.056302] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.056324] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.056347] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.056366] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.056402] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.056427] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 313.056450] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 313.056473] [<ffffffff81008f99>] ? xen_irq_enable_direct_reloc+0x4/0x4
[ 313.056496] [<ffffffff81749146>] ? ia32_cstar_target+0x16/0x8c
[ 313.056515] ---[ end trace 2e28eec93b7a8b8b ]---
[ 313.056578] ------------[ cut here ]------------
[ 313.056601] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.056624] Modules linked in:
[ 313.056641] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.056664] Call Trace:
[ 313.056675] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.056708] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.056708] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.056708] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.056708] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.056708] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.056708] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.056708] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.056708] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.056708] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.056708] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.056708] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.056708] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.056708] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.056708] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.056708] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.056708] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.056708] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.056708] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 313.056708] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 313.056708] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 313.056708] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 313.056708] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 313.056708] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.056708] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 313.056708] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 313.056708] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 313.056708] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 313.056708] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 313.056708] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.056708] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 313.056708] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 313.056708] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 313.056708] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 313.056708] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 313.056708] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 313.056708] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 313.056708] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 313.056708] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 313.056708] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 313.056708] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 313.056708] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 313.056708] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 313.056708] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 313.056708] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.056708] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.056708] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.056708] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.056708] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.056708] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.056708] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.056708] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 313.056708] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 313.056708] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 313.056708] [<ffffffff81008f99>] ? xen_irq_enable_direct_reloc+0x4/0x4
[ 313.056708] [<ffffffff81749146>] ? ia32_cstar_target+0x16/0x8c
[ 313.056708] ---[ end trace 2e28eec93b7a8b8c ]---
[ 313.540200] ------------[ cut here ]------------
[ 313.540218] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 313.540240] Modules linked in:
[ 313.540246] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 313.540252] Call Trace:
[ 313.540256] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 313.540269] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 313.540274] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 313.540283] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 313.540290] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 313.540295] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 313.540301] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 313.540308] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 313.540316] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 313.540321] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 313.540327] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 313.540333] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 313.540338] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 313.540344] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 313.540350] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 313.540357] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 313.540363] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 313.540369] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 313.540375] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 313.540381] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 313.540386] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 313.540392] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 313.540398] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 313.540403] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 313.540408] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 313.540414] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 313.540468] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 313.540475] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 313.540483] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 313.540490] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 313.540495] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 313.540502] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 313.540508] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 313.540513] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.540523] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 313.540529] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 313.540535] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 313.540541] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 313.540546] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 313.540551] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 313.540560] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 313.540566] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 313.540571] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 313.540590] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 313.540595] ---[ end trace 2e28eec93b7a8b8d ]---
[ 314.516817] ------------[ cut here ]------------
[ 314.516845] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 314.516858] Modules linked in:
[ 314.516870] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 314.516883] Call Trace:
[ 314.516890] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 314.516911] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 314.516923] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 314.516937] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 314.516949] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 314.516960] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 314.516972] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 314.516984] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 314.516999] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 314.517011] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 314.517023] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 314.517033] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 314.517044] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 314.517055] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 314.517067] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 314.517079] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 314.517090] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 314.517102] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 314.517114] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 314.517126] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 314.517138] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 314.517150] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 314.517161] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 314.517171] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 314.517181] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 314.517194] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 314.517205] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 314.517218] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 314.517230] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 314.517241] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 314.517252] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 314.517265] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 314.517277] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 314.517286] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 314.517306] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 314.517318] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 314.517329] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 314.517340] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 314.517351] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 314.517361] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 314.517375] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 314.517386] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 314.517397] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 314.517410] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 314.517421] ---[ end trace 2e28eec93b7a8b8e ]---
[ 316.466838] ------------[ cut here ]------------
[ 316.466867] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 316.466881] Modules linked in:
[ 316.466894] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 316.466906] Call Trace:
[ 316.466912] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 316.466934] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 316.466946] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 316.466960] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 316.466973] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 316.466984] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 316.466999] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 316.467012] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 316.467025] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 316.467037] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 316.467049] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 316.467061] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 316.467071] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 316.467083] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 316.467096] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 316.467108] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 316.467119] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 316.467131] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 316.467143] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 316.467155] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 316.467166] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 316.467178] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 316.467190] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 316.467200] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 316.467211] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 316.467223] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 316.467235] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 316.467248] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 316.467260] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 316.467270] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 316.467281] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 316.467293] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 316.467304] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 316.467314] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 316.467334] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 316.467347] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 316.467359] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 316.467369] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 316.467380] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 316.467390] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 316.467403] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 316.467415] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 316.467426] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 316.467439] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 316.467449] ---[ end trace 2e28eec93b7a8b8f ]---
[ 320.373445] ------------[ cut here ]------------
[ 320.373465] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 320.373472] Modules linked in:
[ 320.373478] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 320.373489] Call Trace:
[ 320.373492] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 320.373505] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 320.373511] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 320.373519] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 320.373526] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 320.373532] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 320.373538] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 320.373544] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 320.373552] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 320.373557] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 320.373564] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 320.373570] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 320.373575] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 320.373581] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 320.373587] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 320.373594] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 320.373600] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 320.373606] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 320.373613] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 320.373619] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 320.373625] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 320.373631] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 320.373640] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 320.373647] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 320.373653] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 320.373659] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 320.373665] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 320.373672] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 320.373679] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 320.373685] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 320.373690] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 320.373697] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 320.373703] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 320.373708] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 320.373718] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 320.373727] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 320.373733] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 320.373739] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 320.373744] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 320.373749] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 320.373758] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 320.373764] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 320.373769] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 320.373776] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 320.373782] ---[ end trace 2e28eec93b7a8b90 ]---
[ 328.186900] ------------[ cut here ]------------
[ 328.186948] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 328.186974] Modules linked in:
[ 328.186996] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 328.187020] Call Trace:
[ 328.187033] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 328.187074] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 328.187097] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 328.187124] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 328.187148] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 328.187171] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 328.187193] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 328.187218] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 328.187242] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 328.187268] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 328.187291] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 328.187316] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 328.187342] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 328.187364] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 328.187389] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 328.187412] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 328.187434] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 328.187457] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 328.187481] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 328.187505] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 328.187528] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 328.187551] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 328.187574] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 328.187594] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 328.187615] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 328.187640] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 328.187663] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 328.187688] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 328.187711] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 328.187732] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 328.187753] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 328.187778] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 328.187801] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 328.187820] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 328.187859] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 328.187883] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 328.187905] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 328.187927] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 328.187947] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 328.187967] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 328.187994] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 328.188017] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 328.188040] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 328.188065] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 328.188087] ---[ end trace 2e28eec93b7a8b91 ]---
[ 343.786883] ------------[ cut here ]------------
[ 343.786934] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 343.786960] Modules linked in:
[ 343.786982] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 343.787006] Call Trace:
[ 343.787019] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 343.787060] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 343.787083] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 343.787110] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 343.787135] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 343.787157] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 343.787180] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 343.787203] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 343.787229] [<ffffffff816b96ad>] ip_finish_output+0x39d/0x530
[ 343.787252] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 343.787277] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 343.787298] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 343.787320] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 343.787342] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 343.787367] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 343.787390] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 343.787412] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 343.787435] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 343.787459] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 343.787482] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 343.787506] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 343.787529] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 343.787550] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 343.787571] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 343.787591] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 343.787615] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 343.787638] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 343.787663] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 343.787686] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 343.787707] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 343.787729] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 343.787752] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 343.787774] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 343.787793] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 343.787830] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 343.787855] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 343.787877] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 343.787898] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 343.787918] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 343.787938] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 343.787964] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 343.787987] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 343.788011] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 343.788035] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 343.788056] ---[ end trace 2e28eec93b7a8b92 ]---
[ 369.138108] ------------[ cut here ]------------
[ 369.138148] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.138159] Modules linked in:
[ 369.138165] Pid: 2169, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.138172] Call Trace:
[ 369.138179] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.138186] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.138191] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.138199] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.138205] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.138211] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.138217] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.138223] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 369.138231] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.138236] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.138242] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.138247] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.138253] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.138258] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.138265] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.138271] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.138277] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.138283] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 369.138289] [<ffffffff816d225b>] tcp_push_one+0x2b/0x40
[ 369.138295] [<ffffffff816c2dec>] tcp_sendmsg+0x8dc/0xe20
[ 369.138302] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 369.138307] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 369.138312] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.138319] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 369.138326] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 369.138331] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.138337] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 369.138376] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 369.138384] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 369.138391] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 369.138396] ---[ end trace 2e28eec93b7a8b93 ]---
[ 369.138422] ------------[ cut here ]------------
[ 369.138428] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.138435] Modules linked in:
[ 369.138439] Pid: 2169, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.138445] Call Trace:
[ 369.138450] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.138455] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.138461] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.138468] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.138474] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.138479] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.138485] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.138491] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 369.138497] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.138503] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.138509] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.138514] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.138520] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.138525] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.138531] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.138537] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.138542] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.138548] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 369.138554] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 369.138560] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 369.138566] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 369.138571] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 369.138577] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.138583] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 369.138589] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 369.138594] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.138600] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 369.138605] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 369.138611] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 369.138617] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 369.138621] ---[ end trace 2e28eec93b7a8b94 ]---
[ 369.138648] ------------[ cut here ]------------
[ 369.138653] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.138659] Modules linked in:
[ 369.138664] Pid: 2169, comm: sshd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.138670] Call Trace:
[ 369.138674] [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.138680] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.138686] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.138692] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.138698] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.138704] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.138709] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.138715] [<ffffffff810aa8e5>] ? trace_softirqs_off+0x85/0x1b0
[ 369.138721] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.138727] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.138733] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.138739] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.138744] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.138750] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.138756] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.138762] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.138767] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.138773] [<ffffffff816d19fa>] tcp_write_xmit+0x21a/0xa50
[ 369.138779] [<ffffffff816d229d>] __tcp_push_pending_frames+0x2d/0x90
[ 369.138785] [<ffffffff816c2693>] tcp_sendmsg+0x183/0xe20
[ 369.138791] [<ffffffff816e8f19>] inet_sendmsg+0xa9/0x100
[ 369.138796] [<ffffffff816e8e70>] ? inet_autobind+0x70/0x70
[ 369.138802] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.138808] [<ffffffff8160630d>] sock_aio_write+0x12d/0x140
[ 369.138814] [<ffffffff811435b2>] do_sync_write+0xa2/0xe0
[ 369.138819] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.138825] [<ffffffff811441d4>] vfs_write+0x174/0x190
[ 369.138830] [<ffffffff811442fa>] sys_write+0x5a/0xa0
[ 369.138836] [<ffffffff812b33de>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[ 369.138842] [<ffffffff817491cc>] cstar_dispatch+0x7/0x26
[ 369.138847] ---[ end trace 2e28eec93b7a8b95 ]---
[ 369.571785] ------------[ cut here ]------------
[ 369.571811] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.571818] Modules linked in:
[ 369.571825] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.571832] Call Trace:
[ 369.571835] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.571848] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.571854] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.571863] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.571871] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.571877] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.571883] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.571890] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 369.571898] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.571903] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.571909] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.571915] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.571922] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.571927] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.571934] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.571941] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.571947] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.571953] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 369.571959] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 369.571965] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 369.571971] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 369.571977] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 369.571983] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.571989] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 369.571996] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 369.572002] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.572007] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 369.572013] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.572019] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.572026] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 369.572031] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.572037] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 369.572043] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 369.572048] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 369.572054] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 369.572060] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 369.572066] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.572073] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 369.572080] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 369.572086] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 369.572092] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 369.572098] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 369.572105] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 369.572110] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 369.572116] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 369.572124] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 369.572129] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 369.572137] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 369.572143] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 369.572147] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 369.572158] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 369.572165] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 369.572171] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 369.572176] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 369.572186] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 369.572192] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 369.572200] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 369.572206] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 369.572212] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 369.572218] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 369.572224] ---[ end trace 2e28eec93b7a8b96 ]---
[ 369.572251] ------------[ cut here ]------------
[ 369.572257] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.572264] Modules linked in:
[ 369.572268] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.572274] Call Trace:
[ 369.572277] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.572286] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.572291] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.572298] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.572304] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.572309] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.572315] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.572321] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 369.572327] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.572333] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.572339] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.572344] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.572350] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.572355] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.572361] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.572370] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.572376] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.572382] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 369.572388] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 369.572394] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 369.572400] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 369.572406] [<ffffffff816cd858>] tcp_rcv_established+0x318/0x640
[ 369.572411] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.572417] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 369.572423] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 369.572429] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.572434] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 369.572439] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.572445] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.572451] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 369.572457] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.572463] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 369.572469] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 369.572474] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 369.572480] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 369.572486] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 369.572492] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.572497] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 369.572503] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 369.572509] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 369.572515] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 369.572521] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 369.572527] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 369.572533] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 369.572538] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 369.572543] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 369.572549] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 369.572555] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 369.572560] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 369.572566] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 369.572575] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 369.572581] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 369.572586] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 369.572592] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 369.572597] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 369.572602] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 369.572608] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 369.572614] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 369.572619] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 369.572626] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 369.572631] ---[ end trace 2e28eec93b7a8b97 ]---
[ 369.574579] ------------[ cut here ]------------
[ 369.574599] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.574605] Modules linked in:
[ 369.574611] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.574617] Call Trace:
[ 369.574620] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.574629] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.574635] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.574642] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.574648] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.574653] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.574659] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.574665] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 369.574671] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.574677] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.574683] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.574688] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.574694] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.574699] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.574706] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.574712] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.574718] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.574728] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 369.574734] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 369.574740] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 369.574746] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 369.574752] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 369.574758] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 369.574763] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.574769] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 369.574775] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 369.574781] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.574786] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 369.574792] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.574797] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.574804] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 369.574810] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.574816] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 369.574821] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 369.574827] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 369.574832] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 369.574838] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 369.574843] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.574850] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 369.574856] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 369.574862] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 369.574867] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 369.574874] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 369.574879] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 369.574885] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 369.574891] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 369.574896] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 369.574901] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 369.574907] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 369.574913] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 369.574918] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.574928] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.574934] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 369.574940] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 369.574946] [<ffffffff81008fdf>] ? xen_restore_fl_direct_reloc+0x4/0x4
[ 369.574952] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.574958] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.574964] [<ffffffff810f2a82>] ? find_get_page+0x42/0x100
[ 369.574969] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.574975] [<ffffffff810f2dc1>] ? find_lock_page+0x21/0x80
[ 369.574980] [<ffffffff810f331a>] ? grab_cache_page_write_begin+0x6a/0xe0
[ 369.574988] [<ffffffff811d6df7>] ? ext4_da_write_begin+0x97/0x1a0
[ 369.574993] [<ffffffff810b054b>] ? __lock_acquire+0x46b/0xdd0
[ 369.574999] [<ffffffff8161034c>] ? skb_free_head+0x4c/0x60
[ 369.575005] [<ffffffff810f1ebb>] ? generic_file_buffered_write+0x10b/0x2b0
[ 369.575012] [<ffffffff8106d742>] ? current_fs_time+0x22/0x30
[ 369.575017] [<ffffffff810f409b>] ? __generic_file_aio_write+0x1bb/0x3c0
[ 369.575023] [<ffffffff810f431c>] ? generic_file_aio_write+0x7c/0xf0
[ 369.575029] [<ffffffff811d04c4>] ? ext4_file_write+0x64/0x4c0
[ 369.575036] [<ffffffff8108eb1d>] ? lg_local_unlock+0x3d/0x70
[ 369.575042] [<ffffffff811d0460>] ? ext4_unwritten_wait+0xc0/0xc0
[ 369.575049] [<ffffffff811434cb>] ? do_sync_readv_writev+0x9b/0xe0
[ 369.575056] [<ffffffff8118d07c>] ? compat_do_readv_writev+0x1cc/0x210
[ 369.575062] [<ffffffff81749219>] ? sysretl_from_sys_call+0x2e/0x38
[ 369.575068] [<ffffffff8118d0f7>] ? compat_writev+0x37/0x70
[ 369.575074] [<ffffffff8118d2b4>] ? compat_sys_writev+0x54/0x90
[ 369.575079] [<ffffffff817491cc>] ? cstar_dispatch+0x7/0x26
[ 369.575084] ---[ end trace 2e28eec93b7a8b98 ]---
[ 369.575105] ------------[ cut here ]------------
[ 369.575111] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.575117] Modules linked in:
[ 369.575122] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.575128] Call Trace:
[ 369.575130] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.575139] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.575145] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.575151] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.575157] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.575166] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.575172] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.575178] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 369.575184] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.575190] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.575196] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.575202] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.575207] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.575213] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.575219] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.575225] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.575230] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.575236] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 369.575242] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 369.575248] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 369.575255] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 369.575260] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 369.575266] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 369.575272] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.575278] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 369.575284] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 369.575289] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.575295] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 369.575300] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.575309] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.575316] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 369.575322] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.575328] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 369.575334] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 369.575339] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 369.575344] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 369.575350] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 369.575356] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.575362] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 369.575369] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 369.575375] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 369.575384] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 369.575391] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 369.575397] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 369.575402] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 369.575408] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 369.575413] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 369.575419] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 369.575428] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 369.575434] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 369.575439] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.575448] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.575454] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 369.575460] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 369.575466] [<ffffffff81008fdf>] ? xen_restore_fl_direct_reloc+0x4/0x4
[ 369.575472] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.575478] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.575485] [<ffffffff810f2a82>] ? find_get_page+0x42/0x100
[ 369.575491] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.575497] [<ffffffff810f2dc1>] ? find_lock_page+0x21/0x80
[ 369.575502] [<ffffffff810f331a>] ? grab_cache_page_write_begin+0x6a/0xe0
[ 369.575508] [<ffffffff811d6df7>] ? ext4_da_write_begin+0x97/0x1a0
[ 369.575514] [<ffffffff810b054b>] ? __lock_acquire+0x46b/0xdd0
[ 369.575520] [<ffffffff8161034c>] ? skb_free_head+0x4c/0x60
[ 369.575526] [<ffffffff810f1ebb>] ? generic_file_buffered_write+0x10b/0x2b0
[ 369.575532] [<ffffffff8106d742>] ? current_fs_time+0x22/0x30
[ 369.575538] [<ffffffff810f409b>] ? __generic_file_aio_write+0x1bb/0x3c0
[ 369.575544] [<ffffffff810f431c>] ? generic_file_aio_write+0x7c/0xf0
[ 369.575550] [<ffffffff811d04c4>] ? ext4_file_write+0x64/0x4c0
[ 369.575556] [<ffffffff8108eb1d>] ? lg_local_unlock+0x3d/0x70
[ 369.575562] [<ffffffff811d0460>] ? ext4_unwritten_wait+0xc0/0xc0
[ 369.575567] [<ffffffff811434cb>] ? do_sync_readv_writev+0x9b/0xe0
[ 369.575574] [<ffffffff8118d07c>] ? compat_do_readv_writev+0x1cc/0x210
[ 369.575582] [<ffffffff81749219>] ? sysretl_from_sys_call+0x2e/0x38
[ 369.575588] [<ffffffff8118d0f7>] ? compat_writev+0x37/0x70
[ 369.575594] [<ffffffff8118d2b4>] ? compat_sys_writev+0x54/0x90
[ 369.575600] [<ffffffff817491cc>] ? cstar_dispatch+0x7/0x26
[ 369.575604] ---[ end trace 2e28eec93b7a8b99 ]---
[ 369.575626] ------------[ cut here ]------------
[ 369.575632] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 369.575638] Modules linked in:
[ 369.575642] Pid: 1523, comm: syslogd Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 369.575648] Call Trace:
[ 369.575651] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 369.575660] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 369.575665] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 369.575672] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 369.575678] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 369.575684] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 369.575690] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 369.575696] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 369.575702] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 369.575707] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 369.575714] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 369.575719] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 369.575725] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 369.575730] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 369.575736] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 369.575742] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 369.575748] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 369.575754] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 369.575759] [<ffffffff81746cb5>] ? _raw_spin_unlock_irqrestore+0x75/0xa0
[ 369.575766] [<ffffffff816d167e>] tcp_xmit_retransmit_queue+0x19e/0x300
[ 369.575772] [<ffffffff816c99ff>] tcp_fastretrans_alert+0x94f/0xcb0
[ 369.575778] [<ffffffff816ca70c>] tcp_ack+0x9ac/0x1150
[ 369.575783] [<ffffffff816cd8ce>] tcp_rcv_established+0x38e/0x640
[ 369.575789] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.575795] [<ffffffff816d54d5>] tcp_v4_do_rcv+0x135/0x480
[ 369.575803] [<ffffffff817461d2>] ? _raw_spin_lock_nested+0x42/0x50
[ 369.575809] [<ffffffff816d5eef>] ? tcp_v4_rcv+0x6cf/0xb10
[ 369.575815] [<ffffffff816d617d>] tcp_v4_rcv+0x95d/0xb10
[ 369.575823] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.575828] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.575835] [<ffffffff816b2a6a>] ip_local_deliver_finish+0x11a/0x230
[ 369.575841] [<ffffffff816b2995>] ? ip_local_deliver_finish+0x45/0x230
[ 369.575847] [<ffffffff816b2bb8>] ip_local_deliver+0x38/0x80
[ 369.575852] [<ffffffff816b217a>] ip_rcv_finish+0x15a/0x630
[ 369.575858] [<ffffffff816b2868>] ip_rcv+0x218/0x300
[ 369.575863] [<ffffffff8161ac8d>] __netif_receive_skb+0x65d/0x8d0
[ 369.575869] [<ffffffff8161a775>] ? __netif_receive_skb+0x145/0x8d0
[ 369.575875] [<ffffffff810ad22d>] ? trace_hardirqs_on+0xd/0x10
[ 369.575881] [<ffffffff810f9973>] ? free_hot_cold_page+0x1b3/0x1e0
[ 369.575887] [<ffffffff8161d1f8>] netif_receive_skb+0x28/0xf0
[ 369.575893] [<ffffffff81612d03>] ? __pskb_pull_tail+0x253/0x340
[ 369.576726] [<ffffffff8146e4c5>] xennet_poll+0xad5/0xe10
[ 369.576726] [<ffffffff8161dfa6>] net_rx_action+0x136/0x260
[ 369.576726] [<ffffffff8106e381>] ? __do_softirq+0x71/0x1a0
[ 369.576726] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 369.576726] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 369.576726] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 369.576726] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 369.576726] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 369.576726] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 369.576726] <EOI> [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.576726] [<ffffffff8100122a>] ? xen_hypercall_xen_version+0xa/0x20
[ 369.576726] [<ffffffff8100864d>] ? xen_force_evtchn_callback+0xd/0x10
[ 369.576726] [<ffffffff81008ff2>] ? check_events+0x12/0x20
[ 369.576726] [<ffffffff81008fdf>] ? xen_restore_fl_direct_reloc+0x4/0x4
[ 369.576726] [<ffffffff810b0f88>] ? lock_acquire+0xd8/0x100
[ 369.576726] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.576726] [<ffffffff810f2a82>] ? find_get_page+0x42/0x100
[ 369.576726] [<ffffffff810f2a40>] ? find_get_pages+0x190/0x190
[ 369.576726] [<ffffffff810f2dc1>] ? find_lock_page+0x21/0x80
[ 369.576726] [<ffffffff810f331a>] ? grab_cache_page_write_begin+0x6a/0xe0
[ 369.576726] [<ffffffff811d6df7>] ? ext4_da_write_begin+0x97/0x1a0
[ 369.576726] [<ffffffff810b054b>] ? __lock_acquire+0x46b/0xdd0
[ 369.576726] [<ffffffff8161034c>] ? skb_free_head+0x4c/0x60
[ 369.576726] [<ffffffff810f1ebb>] ? generic_file_buffered_write+0x10b/0x2b0
[ 369.576726] [<ffffffff8106d742>] ? current_fs_time+0x22/0x30
[ 369.576726] [<ffffffff810f409b>] ? __generic_file_aio_write+0x1bb/0x3c0
[ 369.576726] [<ffffffff810f431c>] ? generic_file_aio_write+0x7c/0xf0
[ 369.576726] [<ffffffff811d04c4>] ? ext4_file_write+0x64/0x4c0
[ 369.576726] [<ffffffff8108eb1d>] ? lg_local_unlock+0x3d/0x70
[ 369.576726] [<ffffffff811d0460>] ? ext4_unwritten_wait+0xc0/0xc0
[ 369.576726] [<ffffffff811434cb>] ? do_sync_readv_writev+0x9b/0xe0
[ 369.576726] [<ffffffff8118d07c>] ? compat_do_readv_writev+0x1cc/0x210
[ 369.576726] [<ffffffff81749219>] ? sysretl_from_sys_call+0x2e/0x38
[ 369.576726] [<ffffffff8118d0f7>] ? compat_writev+0x37/0x70
[ 369.576726] [<ffffffff8118d2b4>] ? compat_sys_writev+0x54/0x90
[ 369.576726] [<ffffffff817491cc>] ? cstar_dispatch+0x7/0x26
[ 369.576726] ---[ end trace 2e28eec93b7a8b9a ]---
[ 370.046880] ------------[ cut here ]------------
[ 370.046904] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 370.046910] Modules linked in:
[ 370.046917] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 370.046923] Call Trace:
[ 370.046927] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 370.046939] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 370.046945] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 370.046954] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 370.046961] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 370.046966] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 370.046972] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 370.046979] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 370.046986] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 370.046992] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 370.046998] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 370.047003] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 370.047009] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 370.047014] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 370.047020] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 370.047027] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 370.047033] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 370.047039] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 370.047045] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.047051] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 370.047057] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 370.047063] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 370.047068] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 370.047073] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 370.047079] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.047085] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.047234] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 370.047241] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 370.047248] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 370.047254] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 370.047259] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 370.047266] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 370.047272] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 370.047277] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 370.047287] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 370.047293] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 370.047300] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 370.047305] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 370.047311] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 370.047316] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 370.047325] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 370.047331] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 370.047337] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 370.047343] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 370.047349] ---[ end trace 2e28eec93b7a8b9b ]---
[ 370.996789] ------------[ cut here ]------------
[ 370.996807] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 370.996814] Modules linked in:
[ 370.996820] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 370.996826] Call Trace:
[ 370.996829] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 370.996840] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 370.996845] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 370.996852] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 370.996858] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 370.996863] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 370.996868] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 370.996875] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 370.996881] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 370.996886] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 370.996892] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 370.996896] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 370.996901] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 370.996906] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 370.996912] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 370.996926] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 370.996941] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 370.996947] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 370.996953] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.996959] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 370.996965] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 370.996971] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 370.996977] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 370.996983] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 370.996988] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.996998] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 370.997004] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 370.997011] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 370.997017] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 370.997023] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 370.997029] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 370.997036] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 370.997042] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 370.997046] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 370.997057] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 370.997064] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 370.997070] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 370.997075] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 370.997081] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 370.997093] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 370.997102] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 370.997108] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 370.997114] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 370.997120] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 370.997126] ---[ end trace 2e28eec93b7a8b9c ]---
[ 372.893570] ------------[ cut here ]------------
[ 372.893594] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 372.893601] Modules linked in:
[ 372.893607] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 372.893613] Call Trace:
[ 372.893617] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 372.893630] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 372.893636] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 372.893644] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 372.893651] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 372.893657] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 372.893663] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 372.893669] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 372.893676] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 372.893682] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 372.893688] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 372.893694] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 372.893699] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 372.893705] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 372.893711] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 372.893718] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 372.893724] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 372.893730] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 372.893737] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 372.893743] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 372.893748] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 372.893754] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 372.893760] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 372.893765] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 372.893771] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 372.893777] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 372.893939] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 372.893946] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 372.893952] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 372.893958] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 372.893963] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 372.893970] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 372.893976] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 372.893980] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 372.893990] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 372.893997] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 372.894003] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 372.894008] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 372.894014] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 372.894019] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 372.894027] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 372.894036] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 372.894042] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 372.894048] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 372.894054] ---[ end trace 2e28eec93b7a8b9d ]---
[ 374.986770] ------------[ cut here ]------------
[ 374.986795] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 374.986802] Modules linked in:
[ 374.986810] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 374.986816] Call Trace:
[ 374.986819] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 374.986833] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 374.986838] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 374.986847] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 374.986854] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 374.986859] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 374.986864] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 374.986871] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 374.986879] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 374.986884] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 374.986890] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 374.986894] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 374.986899] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 374.986904] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 374.986911] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 374.986918] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 374.986926] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 374.986931] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 374.986937] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 374.986942] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 374.986947] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 374.986953] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 374.986958] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 374.986963] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 374.986967] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 374.986973] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 374.986978] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 374.986985] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 374.986991] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 374.986997] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 374.987002] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 374.987009] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 374.987014] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 374.987018] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 374.987028] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 374.987039] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 374.987059] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 374.987064] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 374.987070] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 374.987075] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 374.987084] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 374.987091] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 374.987097] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 374.987104] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 374.987110] ---[ end trace 2e28eec93b7a8b9e ]---
[ 376.693529] ------------[ cut here ]------------
[ 376.693582] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 376.693607] Modules linked in:
[ 376.693630] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 376.693654] Call Trace:
[ 376.693666] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 376.693708] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 376.693731] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 376.693758] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 376.693783] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 376.693806] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 376.693828] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 376.693852] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 376.693877] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 376.693902] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 376.693926] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 376.693948] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 376.693970] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 376.693991] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 376.694017] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 376.694040] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 376.694062] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 376.694085] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 376.694110] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 376.694133] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 376.694156] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 376.694179] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 376.694201] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 376.694222] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 376.694242] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 376.694267] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 376.694290] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 376.694315] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 376.694337] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 376.694358] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 376.694380] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 376.694404] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 376.694427] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 376.694446] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 376.694484] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 376.694509] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 376.694531] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 376.694552] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 376.694573] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 376.694594] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 376.694621] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 376.694644] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 376.694666] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 376.694691] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 376.694712] ---[ end trace 2e28eec93b7a8b9f ]---
[ 384.293592] ------------[ cut here ]------------
[ 384.293622] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 384.293629] Modules linked in:
[ 384.293637] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 384.293643] Call Trace:
[ 384.293647] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 384.293662] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 384.293667] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 384.293676] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 384.293683] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 384.293689] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 384.293696] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 384.293704] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 384.293711] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 384.293717] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 384.293724] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 384.293729] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 384.293735] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 384.293741] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 384.293747] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 384.293754] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 384.293760] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 384.293767] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 384.293775] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 384.293781] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 384.293787] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 384.293793] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 384.293800] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 384.293805] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 384.293810] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 384.293824] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 384.293830] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 384.293838] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 384.293845] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 384.293851] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 384.293857] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 384.293864] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 384.293870] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 384.293875] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 384.293886] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 384.293893] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 384.293900] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 384.293905] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 384.293911] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 384.293916] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 384.293925] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 384.293932] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 384.293938] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 384.293945] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 384.293950] ---[ end trace 2e28eec93b7a8ba0 ]---
[ 399.466773] ------------[ cut here ]------------
[ 399.466791] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 399.466798] Modules linked in:
[ 399.466804] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 399.466809] Call Trace:
[ 399.466813] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 399.466824] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 399.466830] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 399.466837] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 399.466843] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 399.466848] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 399.466853] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 399.466859] [<ffffffff81629a77>] neigh_resolve_output+0x127/0x250
[ 399.466865] [<ffffffff816b96ad>] ip_finish_output+0x39d/0x530
[ 399.466871] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 399.466876] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 399.466881] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 399.466886] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 399.466891] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 399.466896] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 399.466903] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 399.466909] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 399.466914] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 399.466919] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 399.466925] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 399.466930] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 399.466935] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 399.466940] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 399.466945] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 399.466949] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 399.466955] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 399.466960] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 399.466966] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 399.466972] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 399.466977] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 399.466982] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 399.466989] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 399.466994] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 399.466998] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 399.467008] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 399.467013] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 399.467019] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 399.467024] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 399.467028] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 399.467033] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 399.467040] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 399.467045] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 399.467050] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 399.467055] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 399.467060] ---[ end trace 2e28eec93b7a8ba1 ]---
[ 429.813440] ------------[ cut here ]------------
[ 429.813477] WARNING: at drivers/net/xen-netfront.c:465 xennet_start_xmit+0x7fe/0x860()
[ 429.813484] Modules linked in:
[ 429.813491] Pid: 0, comm: swapper/0 Tainted: G W 3.6.0pre-rc1-20121011 #1
[ 429.813497] Call Trace:
[ 429.813501] <IRQ> [<ffffffff810664ea>] warn_slowpath_common+0x7a/0xb0
[ 429.813513] [<ffffffff81066535>] warn_slowpath_null+0x15/0x20
[ 429.813519] [<ffffffff8146d89e>] xennet_start_xmit+0x7fe/0x860
[ 429.813527] [<ffffffff8161f349>] dev_hard_start_xmit+0x209/0x460
[ 429.813534] [<ffffffff8163b036>] sch_direct_xmit+0xf6/0x290
[ 429.813539] [<ffffffff8161f746>] dev_queue_xmit+0x1a6/0x5a0
[ 429.813545] [<ffffffff8161f5a0>] ? dev_hard_start_xmit+0x460/0x460
[ 429.813552] [<ffffffff810b1417>] ? lock_release+0x117/0x250
[ 429.813559] [<ffffffff816b9536>] ip_finish_output+0x226/0x530
[ 429.813565] [<ffffffff816b93dd>] ? ip_finish_output+0xcd/0x530
[ 429.813571] [<ffffffff816b9899>] ip_output+0x59/0xe0
[ 429.813576] [<ffffffff816b83b8>] ip_local_out+0x28/0x90
[ 429.813582] [<ffffffff816b896f>] ip_queue_xmit+0x17f/0x4a0
[ 429.813588] [<ffffffff816b87f0>] ? ip_send_unicast_reply+0x340/0x340
[ 429.813594] [<ffffffff810a0ba7>] ? getnstimeofday+0x47/0xe0
[ 429.813600] [<ffffffff8160f4c9>] ? __skb_clone+0x29/0x120
[ 429.813606] [<ffffffff816cea20>] tcp_transmit_skb+0x400/0x8d0
[ 429.813614] [<ffffffff816d1106>] tcp_retransmit_skb+0x1c6/0x5a0
[ 429.813623] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 429.813631] [<ffffffff816d2f38>] tcp_retransmit_timer+0x358/0x630
[ 429.813637] [<ffffffff816d334d>] tcp_write_timer_handler+0x13d/0x1a0
[ 429.813643] [<ffffffff816d3428>] tcp_write_timer+0x78/0x80
[ 429.813649] [<ffffffff81073f7c>] call_timer_fn+0x7c/0x100
[ 429.813654] [<ffffffff81073f00>] ? cascade+0xa0/0xa0
[ 429.813659] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 429.813665] [<ffffffff816d33b0>] ? tcp_write_timer_handler+0x1a0/0x1a0
[ 429.813728] [<ffffffff81074217>] run_timer_softirq+0x217/0x250
[ 429.813735] [<ffffffff8106e3d9>] __do_softirq+0xc9/0x1a0
[ 429.813742] [<ffffffff81748d3c>] call_softirq+0x1c/0x30
[ 429.813749] [<ffffffff8100edb5>] do_softirq+0x85/0xf0
[ 429.813754] [<ffffffff8106e24e>] irq_exit+0x9e/0xd0
[ 429.813762] [<ffffffff81339f5f>] xen_evtchn_do_upcall+0x2f/0x40
[ 429.813767] [<ffffffff81748d9e>] xen_do_hypervisor_callback+0x1e/0x30
[ 429.813772] <EOI> [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 429.813783] [<ffffffff810013aa>] ? xen_hypercall_sched_op+0xa/0x20
[ 429.813789] [<ffffffff81008690>] ? xen_safe_halt+0x10/0x20
[ 429.813795] [<ffffffff810160d0>] ? default_idle+0x40/0x90
[ 429.813801] [<ffffffff81016486>] ? cpu_idle+0x96/0xf0
[ 429.813807] [<ffffffff81722d3c>] ? rest_init+0xbc/0xd0
[ 429.813813] [<ffffffff81722c80>] ? csum_partial_copy_generic+0x170/0x170
[ 429.813821] [<ffffffff81ce0df2>] ? start_kernel+0x390/0x39d
[ 429.813827] [<ffffffff81ce0882>] ? kernel_init+0x20b/0x20b
[ 429.813833] [<ffffffff81ce0356>] ? x86_64_start_reservations+0x131/0x136
[ 429.813839] [<ffffffff81ce3d60>] ? xen_start_kernel+0x70d/0x70f
[ 429.813845] ---[ end trace 2e28eec93b7a8ba2 ]---
^ permalink raw reply
* Re: alignment faults in 3.6
From: Eric Dumazet @ 2012-10-11 10:00 UTC (permalink / raw)
To: Måns Rullgård
Cc: David Laight, Jon Masters, linux-arm-kernel, netdev
In-Reply-To: <yw1xpq4ppcju.fsf@unicorn.mansr.com>
On Thu, 2012-10-11 at 10:45 +0100, Måns Rullgård wrote:
> "David Laight" <David.Laight@ACULAB.COM> writes:
>
> >> -----Original Message-----
> >> From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org] On Behalf Of Måns Rullgård
> >> Sent: 11 October 2012 03:27
> >> To: Jon Masters
> >> Cc: linux-arm-kernel@lists.infradead.org; netdev@vger.kernel.org
> >> Subject: Re: alignment faults in 3.6
> >>
> >> Jon Masters <jonathan@jonmasters.org> writes:
> >>
> >> > Hi everyone,
> >> >
> >> > On 10/05/2012 10:33 AM, Rob Herring wrote:
> >> >> On 10/05/2012 09:05 AM, Russell King - ARM Linux wrote:
> >> >>> On Fri, Oct 05, 2012 at 07:24:44AM -0500, Rob Herring wrote:
> >> >>>> On 10/05/2012 03:24 AM, Russell King - ARM Linux wrote:
> >> >>>>> Does it matter? I'm just relaying the argument against adding __packed
> >> >>>>> which was used before we were forced (by the networking folk) to implement
> >> >>>>> the alignment fault handler.
> >> >>>>
> >> >>>> It doesn't really matter what will be accepted or not as adding __packed
> >> >>>> to struct iphdr doesn't fix the problem anyway.
> > ...
> >> There are exactly two possible solutions:
> >>
> >> 1. Change the networking code so those structs are always aligned. This
> >> might not be (easily) possible.
> >> 2. Mark the structs __packed and fix any typecasts like the ones seen in
> >> this thread. This will have an adverse effect in cases where the
> >> structs are in fact aligned.
> >>
> >> Both solutions lie squarely in the networking code. It's time to
> >> involve that list, or we'll never get anywhere.
> >
> > It might be enough to use __attribute__((aligned(2))) on some structure
> > members (actually does 'ldm' need 8 byte alignment?? - in which case
> > aligned(4) is enough).
>
> The aligned attribute can only increase alignment.
>
I have no idea what is the problem,
-ENOTENOUGHCONTEXT
^ permalink raw reply
* Re: conntrack, NAT and icmp echo reply
From: Denys Fedoryshchenko @ 2012-10-11 10:02 UTC (permalink / raw)
To: Eric Dumazet; +Cc: netdev, netfilter
In-Reply-To: <1349949430.21172.8435.camel@edumazet-glaptop>
On 2012-10-11 12:57, Eric Dumazet wrote:
> On Thu, 2012-10-11 at 12:41 +0300, Denys Fedoryshchenko wrote:
>> Hi all
>>
>> I have NAT box, with very simple rule
>> iptables -t nat -I POSTROUTING -s 10.0.0.0/8 -j MASQUERADE
>> It can be SNAT also, and it works fine, as NAT.
>>
>> When i generate icmp _reply_ packet, to some host
>> hping -I ppp0 -1 --icmptype 0 8.8.8.8
>>
>> It will pass the box, and will exit it without NAT, e.g. with
>> original
>> IP 10.x.x.x
>> on outgoing interface, which is not expected behavior IMHO.
>> Is it a bug or feature?
>>
>
> It depends, -s 10.0.0.0/8 wont match the rule if the source address
> should be 198.23.44.55 I guess ?
>
> I would try the more obvious
>
> iptables -t nat -I POSTROUTING -o device -j MASQUERADE
Source is correct, it is 10.0.0.0/8 range. I tested also ICMP code 3,
it wont be NATed also.
But ICMP echo passing OK.
Also TCP RST generated same way, (i guess that don't have any match in
conntrack table), won't be NATed too.
hping -I ppp0 -R 8.8.8.8
13:01:07.074134 IP 10.0.0.142.2106 > 8.8.8.8.0: Flags [R], seq
510333079, win 512, length 0
13:01:08.074239 IP 10.0.0.142.2107 > 8.8.8.8.0: Flags [R], seq
1169580528, win 512, length 0
13:01:09.074253 IP 10.0.0.142.2108 > 8.8.8.8.0: Flags [R], seq
186548661, win 512, length 0
13:01:10.074376 IP 10.0.0.142.2109 > 8.8.8.8.0: Flags [R], seq
2135508128, win 512, length 0
13:01:11.074553 IP 10.0.0.142.2110 > 8.8.8.8.0: Flags [R], seq
1507433100, win 512, length 0
And ICMP here you can see correct behavior with icmp echo request:
12:58:22.917458 IP 10.0.0.142 > 8.8.8.8: ICMP echo reply, id 62548, seq
0, length 8
12:58:23.917543 IP 10.0.0.142 > 8.8.8.8: ICMP echo reply, id 62548, seq
256, length 8
12:58:24.917657 IP 10.0.0.142 > 8.8.8.8: ICMP echo reply, id 62548, seq
512, length 8
12:58:31.047475 IP 10.0.0.142 > 8.8.8.8: ICMP net 5.6.7.8 unreachable,
length 36
12:58:32.047562 IP 10.0.0.142 > 8.8.8.8: ICMP net 5.6.7.8 unreachable,
length 36
12:58:33.047734 IP 10.0.0.142 > 8.8.8.8: ICMP net 5.6.7.8 unreachable,
length 36
12:58:54.014601 IP X.146.153.X > 8.8.8.8: ICMP echo request, id 10462,
seq 0, length 8
12:58:54.081897 IP 8.8.8.8 > X.146.153.X: ICMP echo reply, id 10462,
seq 0, length 8
---
Denys Fedoryshchenko, Network Engineer, Virtual ISP S.A.L.
^ permalink raw reply
* Re: [Xen-devel] compound skb frag pages appearing in start_xmit
From: Eric Dumazet @ 2012-10-11 10:05 UTC (permalink / raw)
To: Sander Eikelenboom
Cc: Ian Campbell, xen-devel, Konrad Rzeszutek Wilk,
netdev@vger.kernel.org, Eric Dumazet
In-Reply-To: <151954917.20121011120004@eikelenboom.it>
On Thu, 2012-10-11 at 12:00 +0200, Sander Eikelenboom wrote:
> Probably due to the BUG_ON from the patch below, i changed it into a WARN_ON.
> And i seem to hit it, but only in one of the guests at the moment and it triggers quite irregularly.
xennet_make_frags() is able to split the skb->head in multiple page-size
chunks.
It should do the same for fragments
^ permalink raw reply
* Re: [Xen-devel] compound skb frag pages appearing in start_xmit
From: Ian Campbell @ 2012-10-11 10:14 UTC (permalink / raw)
To: Eric Dumazet
Cc: Sander Eikelenboom, xen-devel, Konrad Rzeszutek Wilk,
netdev@vger.kernel.org, Eric Dumazet
In-Reply-To: <1349949924.21172.8462.camel@edumazet-glaptop>
On Thu, 2012-10-11 at 11:05 +0100, Eric Dumazet wrote:
> On Thu, 2012-10-11 at 12:00 +0200, Sander Eikelenboom wrote:
>
> > Probably due to the BUG_ON from the patch below, i changed it into a WARN_ON.
> > And i seem to hit it, but only in one of the guests at the moment and it triggers quite irregularly.
>
> xennet_make_frags() is able to split the skb->head in multiple page-size
> chunks.
>
> It should do the same for fragments
Right, I just want to be reproduce the issue so I can know I've fixed it
properly ;-)
Ian.
^ permalink raw reply
* Re: removing the timer from cdc-ncm
From: Bjørn Mork @ 2012-10-11 10:17 UTC (permalink / raw)
To: Oliver Neukum
Cc: Alexey ORISHKO, netdev@vger.kernel.org, linux-usb@vger.kernel.org
In-Reply-To: <9022066.PsM0uBqIB8-ugxBuEnWX9yG/4A2pS7c2Q@public.gmane.org>
Oliver Neukum <oneukum-l3A5Bk7waGM@public.gmane.org> writes:
> On Tuesday 25 September 2012 13:18:10 Alexey ORISHKO wrote:
>
>> Linux host got panic right after data path has been established
>> (i.e. connected to mobile network).
>
> Thank you. Worse than I hoped, but not unexpected. I'll stare at the
> code a bit.
I had the same experience, but thought I was going to look a bit more at
it before sending anything and forgot all about it. So this time I am
just sending you my preliminary results instead of waiting.
I am running with your initial patch, Alexeys suggested cleanup, and
some additional debug printks. The driver receives a few ARPs from the
device, but crashes on the very first outgoing dhcp packet (which is
dumped with a ">>" prefix from cdc_ncm_tx_bundle just before calling
cdc_ncm_fill_tx_frame):
[48880.037638] cdc_ncm: wwan0: network connection: connected
[48880.044038] IPv6: ADDRCONF(NETDEV_CHANGE): wwan0: link becomes ready
[48880.048351] >> 00000000: ff ff ff ff ff ff 02 80 37 ec 02 00 08 00 45 10 ........7.....E.
[48880.048361] >> 00000010: 01 48 00 00 00 00 80 11 39 96 00 00 00 00 ff ff .H......9.......
[48880.048365] >> 00000020: ff ff 00 44 00 43 01 34 9e fd 01 01 06 00 9e 31 ...D.C.4.......1
[48880.048370] >> 00000030: 64 26 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d&..............
[48880.048374] >> 00000040: 00 00 00 00 00 00 02 80 37 ec 02 00 00 00 00 00 ........7.......
[48880.048378] >> 00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048382] >> 00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048386] >> 00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048390] >> 00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048395] >> 00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048398] >> 000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048406] >> 000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048411] >> 000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048414] >> 000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048418] >> 000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048422] >> 000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048427] >> 00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048431] >> 00000110: 00 00 00 00 00 00 63 82 53 63 35 01 01 37 07 01 ......c.Sc5..7..
[48880.048435] >> 00000120: 1c 02 03 0f 06 0c ff 00 00 00 00 00 00 00 00 00 ................
[48880.048439] >> 00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048444] >> 00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
[48880.048448] >> 00000150: 00 00 00 00 00 00 ......
[48880.048453] cdc_ncm_fill_tx_frame: ctx=ffff880162c97600, skb=ffff88018237bac0
[48880.048494] BUG: unable to handle kernel NULL pointer dereference at 0000000000000068
[48880.048573] IP: [<ffffffffa06ba879>] cdc_ncm_tx_bundle+0x168/0x43b [cdc_ncm]
[48880.048638] PGD 0
[48880.048663] Oops: 0000 [#1] SMP
[48880.048702] Modules linked in: cdc_wdm cdc_ncm(O) netconsole configfs usbnet(O) mii cdc_acm usbhid hid option usb_storage uas nfsv3 nfsv4 auth_rpcgss udf crc_itu_t xt_multiport iptable_filter ip_tables cpufreq_userspace cpufreq_stats cpufreq_conservative cpufreq_powersave rfcomm bnep xt_hl binfmt_misc ip6table_filter ip6_tables x_tables fuse nfsd nfs_acl nfs lockd fscache sunrpc 8021q garp stp llc tun ext2 loop snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss iTCO_wdt snd_pcm iTCO_vendor_support thinkpad_acpi nvram snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 iwldvm mac80211 snd_seq snd_timer snd_seq_device qcserial usb_wwan coretemp kvm_intel usbserial uvcvideo videobuf2_vmalloc btusb kvm videobuf2_memops videobuf2_core bluetooth
psmouse i2c_i801 serio_raw videodev evdev crc16 lpc_ich acpi_cpufreq mfd_core ac battery snd iwlwifi mperf wmi i915 cfg80211 rfkill video processor button drm_kms_helper drm soundcore mei i2c_algo_bit i2c_core ext3 mbcache jbd sha256_generic ablk_helper cryptd aes_x86_64 aes_generic cbc dm_crypt dm_mod nbd sg sd_mod sr_mod crc_t10dif cdrom microcode thermal thermal_sys uhci_hcd ahci ehci_hcd libahci libata e1000e scsi_mod usbcore usb_common [last unloaded: cdc_ncm]
[48880.050129] CPU 1
[48880.050151] Pid: 5467, comm: dhclient Tainted: G W O 3.6.0 #36 LENOVO 2776LEG/2776LEG
[48880.050218] RIP: 0010:[<ffffffffa06ba879>] [<ffffffffa06ba879>] cdc_ncm_tx_bundle+0x168/0x43b [cdc_ncm]
[48880.050297] RSP: 0018:ffff880232189ab8 EFLAGS: 00010287
[48880.050340] RAX: 0000000000000000 RBX: ffff880162c97600 RCX: 00000000ffffffff
[48880.050395] RDX: 0000000000000800 RSI: ffff8802310bac00 RDI: 0000000000000246
[48880.050448] RBP: ffff880230a0e8c0 R08: 0000000000001100 R09: 000000015eb6d202
[48880.050502] R10: 00000000ffffffff R11: ffff880230a0e8c0 R12: 0000000000000000
[48880.050556] R13: 0000000000000001 R14: 0000000000000212 R15: 00000000000001e8
[48880.050610] FS: 00007fb27436d700(0000) GS:ffff88023bc80000(0000) knlGS:0000000000000000
[48880.050673] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[48880.050717] CR2: 0000000000000068 CR3: 0000000226196000 CR4: 00000000000007e0
[48880.050771] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[48880.050827] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[48880.050882] Process dhclient (pid: 5467, threadinfo ffff880232188000, task ffff88020f4f0810)
[48880.050945] Stack:
[48880.050964] 0000000000000156 0000000000000001 0000000000000000 ffffffff812a8b00
[48880.051039] ffff8801b2b70980 0000000000000000 0000000000000000 0000000000004000
[48880.051114] 0000000000000001 ffff88016f63f000 ffff88018237bac0 ffffffffa03ac5fc
[48880.051193] Call Trace:
[48880.051221] [<ffffffff812a8b00>] ? build_skb+0x7b/0xa9
[48880.051266] [<ffffffffa03ac5fc>] ? usbnet_start_xmit+0x99/0x4e9 [usbnet]
[48880.051321] [<ffffffff812b50b1>] ? dev_hard_start_xmit+0x3db/0x533
[48880.051373] [<ffffffff812c9d5a>] ? sch_direct_xmit+0x64/0x13a
[48880.051426] [<ffffffff812b5521>] ? dev_queue_xmit+0x318/0x4eb
[48880.051477] [<ffffffff81347a8a>] ? packet_sendmsg_spkt+0x268/0x297
[48880.051528] [<ffffffff812a0644>] ? sock_sendmsg+0x53/0x6b
[48880.051576] [<ffffffff8124bb5d>] ? pty_write+0x48/0x53
[48880.051619] [<ffffffff8129f9f6>] ? copy_from_user+0x18/0x30
[48880.051669] [<ffffffff8129fa46>] ? move_addr_to_kernel+0x2a/0x65
[48880.051718] [<ffffffff812a0b6a>] ? sys_sendto+0xf7/0x137
[48880.051765] [<ffffffff8110b27b>] ? vfs_write+0xc9/0xff
[48880.051810] [<ffffffff8136f779>] ? system_call_fastpath+0x16/0x1b
[48880.051859] Code: 44 89 f1 31 c0 48 89 d7 f3 aa c7 83 58 01 00 00 00 00 00 00 45 31 ed e9 d9 00 00 00 8b 93 68 01 00 00 41 39 d6 0f 83 e2 00 00 00 <41> 8b 4c 24 68 44 29 f2 39 d1 76 28 66 45 85 ed 0f 85 cc 00 00
[48880.052010] RIP [<ffffffffa06ba879>] cdc_ncm_tx_bundle+0x168/0x43b [cdc_ncm]
[48880.052010] RSP <ffff880232189ab8>
[48880.052010] CR2: 0000000000000068
[48880.079274] ---[ end trace 993ca2b17e744958 ]---
[48880.079284] Kernel panic - not syncing: Fatal exception in interrupt
[48880.079340] panic occurred, switching back to text console
[48880.079405] ------------[ cut here ]------------
[48880.079479] WARNING: at drivers/gpu/drm/i915/intel_display.c:1225 intel_crtc_disable+0x52/0x86 [i915]()
[48880.079549] Hardware name: 2776LEG
[48880.079578] pipe B assertion failure (expected off, current on)
[48880.080007] Modules linked in: cdc_wdm cdc_ncm(O) netconsole configfs usbnet(O) mii cdc_acm usbhid hid option usb_storage uas nfsv3 nfsv4 auth_rpcgss udf crc_itu_t xt_multiport iptable_filter ip_tables cpufreq_userspace cpufreq_stats cpufreq_conservative cpufreq_powersave rfcomm bnep xt_hl binfmt_misc ip6table_filter ip6_tables x_tables fuse nfsd nfs_acl nfs lockd fscache sunrpc 8021q garp stp llc tun ext2 loop snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss iTCO_wdt snd_pcm iTCO_vendor_support thinkpad_acpi nvram snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi arc4 iwldvm mac80211 snd_seq snd_timer snd_seq_device qcserial usb_wwan coretemp kvm_intel usbserial uvcvideo videobuf2_vmalloc btusb kvm videobuf2_memops videobuf2_core bluetooth
psmouse i2c_i801 serio_raw videodev evdev crc16 lpc_ich acpi_cpufreq mfd_core ac battery snd iwlwifi mperf wmi i915 cfg80211 rfkill video processor button drm_kms_helper drm soundcore mei i2c_algo_bit i2c_core ext3 mbcache jbd sha256_generic ablk_helper cryptd aes_x86_64 aes_generic cbc dm_crypt dm_mod nbd sg sd_mod sr_mod crc_t10dif cdrom microcode thermal thermal_sys uhci_hcd ahci ehci_hcd libahci libata e1000e scsi_mod usbcore usb_common [last unloaded: cdc_ncm]
[48880.080007] Pid: 5467, comm: dhclient Tainted: G D W O 3.6.0 #36
[48880.080007] Call Trace:
[48880.080007] [<ffffffff8103e0ed>] ? warn_slowpath_common+0x78/0x8c
[48880.080007] [<ffffffff8103e19f>] ? warn_slowpath_fmt+0x45/0x4a
[48880.080007] [<ffffffffa02b5ce1>] ? intel_crtc_disable+0x52/0x86 [i915]
[48880.080007] [<ffffffffa0212f0a>] ? drm_helper_disable_unused_functions+0xf1/0x133 [drm_kms_helper]
[48880.080007] [<ffffffffa0213dd0>] ? drm_crtc_helper_set_config+0x185/0x919 [drm_kms_helper]
[48880.080007] [<ffffffffa021113a>] ? drm_fb_helper_restore_fbdev_mode+0x30/0x4a [drm_kms_helper]
[48880.080007] [<ffffffffa021118b>] ? drm_fb_helper_force_kernel_mode+0x37/0x62 [drm_kms_helper]
[48880.080007] [<ffffffffa0211aa2>] ? drm_fb_helper_panic+0x20/0x26 [drm_kms_helper]
[48880.080007] [<ffffffff8136d416>] ? notifier_call_chain+0x2e/0x5b
[48880.080007] [<ffffffff81368236>] ? panic+0xf3/0x1dd
[48880.080007] [<ffffffff8136b013>] ? oops_end+0xaa/0xb7
[48880.080007] [<ffffffff8103319a>] ? no_context+0x254/0x263
[48880.080007] [<ffffffff8136d249>] ? do_page_fault+0x1ad/0x34c
[48880.080007] [<ffffffffa0699240>] ? write_msg+0x9f/0x102 [netconsole]
[48880.080007] [<ffffffff81101319>] ? ____cache_alloc+0x3f/0x246
[48880.080007] [<ffffffff8136a5a5>] ? page_fault+0x25/0x30
[48880.080007] [<ffffffffa06ba879>] ? cdc_ncm_tx_bundle+0x168/0x43b [cdc_ncm]
[48880.080007] [<ffffffffa06ba93a>] ? cdc_ncm_tx_bundle+0x229/0x43b [cdc_ncm]
[48880.080007] [<ffffffff812a8b00>] ? build_skb+0x7b/0xa9
[48880.080007] [<ffffffffa03ac5fc>] ? usbnet_start_xmit+0x99/0x4e9 [usbnet]
[48880.080007] [<ffffffff812b50b1>] ? dev_hard_start_xmit+0x3db/0x533
[48880.080007] [<ffffffff812c9d5a>] ? sch_direct_xmit+0x64/0x13a
[48880.080007] [<ffffffff812b5521>] ? dev_queue_xmit+0x318/0x4eb
[48880.080007] [<ffffffff81347a8a>] ? packet_sendmsg_spkt+0x268/0x297
[48880.080007] [<ffffffff812a0644>] ? sock_sendmsg+0x53/0x6b
[48880.080007] [<ffffffff8124bb5d>] ? pty_write+0x48/0x53
[48880.080007] [<ffffffff8129f9f6>] ? copy_from_user+0x18/0x30
[48880.080007] [<ffffffff8129fa46>] ? move_addr_to_kernel+0x2a/0x65
[48880.080007] [<ffffffff812a0b6a>] ? sys_sendto+0xf7/0x137
[48880.080007] [<ffffffff8110b27b>] ? vfs_write+0xc9/0xff
[48880.080007] [<ffffffff8136f779>] ? system_call_fastpath+0x16/0x1b
[48880.080007] ---[ end trace 993ca2b17e744959 ]---
--
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^ permalink raw reply
* RE: alignment faults in 3.6
From: David Laight @ 2012-10-11 10:16 UTC (permalink / raw)
To: Måns Rullgård; +Cc: Jon Masters, linux-arm-kernel, netdev
In-Reply-To: <yw1xpq4ppcju.fsf@unicorn.mansr.com>
> > It might be enough to use __attribute__((aligned(2))) on some structure
> > members (actually does 'ldm' need 8 byte alignment?? - in which case
> > aligned(4) is enough).
>
> The aligned attribute can only increase alignment.
Not true.
If you have:
struct foo {
short a;
int b __attribute__((aligned(2)));
short c;
};
You'll find sizeof (struct foo) is 8, and that, on arm/sparc etc,
gcc will generate 2 16bit accesses (and shifts) for foo.b;
David
^ permalink raw reply
* Re: alignment faults in 3.6
From: Måns Rullgård @ 2012-10-11 10:20 UTC (permalink / raw)
To: Eric Dumazet
Cc: Måns Rullgård, David Laight, Jon Masters,
linux-arm-kernel, netdev
In-Reply-To: <1349949638.21172.8445.camel@edumazet-glaptop>
Eric Dumazet <eric.dumazet@gmail.com> writes:
> On Thu, 2012-10-11 at 10:45 +0100, Måns Rullgård wrote:
>> "David Laight" <David.Laight@ACULAB.COM> writes:
>>
>> >> -----Original Message-----
>> >> From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org] On Behalf Of Måns Rullgård
>> >> Sent: 11 October 2012 03:27
>> >> To: Jon Masters
>> >> Cc: linux-arm-kernel@lists.infradead.org; netdev@vger.kernel.org
>> >> Subject: Re: alignment faults in 3.6
>> >>
>> >> Jon Masters <jonathan@jonmasters.org> writes:
>> >>
>> >> > Hi everyone,
>> >> >
>> >> > On 10/05/2012 10:33 AM, Rob Herring wrote:
>> >> >> On 10/05/2012 09:05 AM, Russell King - ARM Linux wrote:
>> >> >>> On Fri, Oct 05, 2012 at 07:24:44AM -0500, Rob Herring wrote:
>> >> >>>> On 10/05/2012 03:24 AM, Russell King - ARM Linux wrote:
>> >> >>>>> Does it matter? I'm just relaying the argument against adding __packed
>> >> >>>>> which was used before we were forced (by the networking folk) to implement
>> >> >>>>> the alignment fault handler.
>> >> >>>>
>> >> >>>> It doesn't really matter what will be accepted or not as adding __packed
>> >> >>>> to struct iphdr doesn't fix the problem anyway.
>> > ...
>> >> There are exactly two possible solutions:
>> >>
>> >> 1. Change the networking code so those structs are always aligned. This
>> >> might not be (easily) possible.
>> >> 2. Mark the structs __packed and fix any typecasts like the ones seen in
>> >> this thread. This will have an adverse effect in cases where the
>> >> structs are in fact aligned.
>> >>
>> >> Both solutions lie squarely in the networking code. It's time to
>> >> involve that list, or we'll never get anywhere.
>> >
>> > It might be enough to use __attribute__((aligned(2))) on some structure
>> > members (actually does 'ldm' need 8 byte alignment?? - in which case
>> > aligned(4) is enough).
>>
>> The aligned attribute can only increase alignment.
>
> I have no idea what is the problem,
>
> -ENOTENOUGHCONTEXT
The thread starts here:
http://marc.info/?l=linux-arm-kernel&m=134939228120020
Summary: a pointer to "struct iphdr" is not 4-byte aligned as required
by the ARM ABI rules, and this causes traps to the unaligned access
fault handler. A recent change makes the kernel print "scheduling while
atomic" warnings on some of these traps, which may or may not be
benign. Either way, this is bad for performance and should be fixed one
way or another.
--
Måns Rullgård
mans@mansr.com
^ permalink raw reply
* Re: [Xen-devel] compound skb frag pages appearing in start_xmit
From: Sander Eikelenboom @ 2012-10-11 10:20 UTC (permalink / raw)
To: Ian Campbell
Cc: Eric Dumazet, xen-devel, Konrad Rzeszutek Wilk,
netdev@vger.kernel.org, Eric Dumazet
In-Reply-To: <1349950494.14806.29.camel@zakaz.uk.xensource.com>
Thursday, October 11, 2012, 12:14:54 PM, you wrote:
> On Thu, 2012-10-11 at 11:05 +0100, Eric Dumazet wrote:
>> On Thu, 2012-10-11 at 12:00 +0200, Sander Eikelenboom wrote:
>>
>> > Probably due to the BUG_ON from the patch below, i changed it into a WARN_ON.
>> > And i seem to hit it, but only in one of the guests at the moment and it triggers quite irregularly.
>>
>> xennet_make_frags() is able to split the skb->head in multiple page-size
>> chunks.
>>
>> It should do the same for fragments
> Right, I just want to be reproduce the issue so I can know I've fixed it
> properly ;-)
Trying to scp/sftp files from a guest seems to trigger it for me ..
> Ian.
^ permalink raw reply
* Re: alignment faults in 3.6
From: Eric Dumazet @ 2012-10-11 10:22 UTC (permalink / raw)
To: Måns Rullgård
Cc: David Laight, Jon Masters, linux-arm-kernel, netdev
In-Reply-To: <1349949638.21172.8445.camel@edumazet-glaptop>
On Thu, 2012-10-11 at 12:00 +0200, Eric Dumazet wrote:
> On Thu, 2012-10-11 at 10:45 +0100, Måns Rullgård wrote:
>
> I have no idea what is the problem,
>
> -ENOTENOUGHCONTEXT
>
>
I took a look, and I dont see why/how gcc could use a ldm instruction
Doing so assumed the alignment of the structure was 8 bytes, but its
not.
Networking stack mandates that IP headers are aligned on 4 bytes
boundaries, not 8 bytes.
(Some arches like x86 dont care, so we might have some bugs in some
drivers, but not in the GRO code)
Some drivers are not aware of the NET_IP_ALIGN stuff.
They should be fixed, or else you have alignment faults.
struct iphdr {
__u8 ihl:4,
version:4;
__u8 tos;
__be16 tot_len;
__be16 id;
__be16 frag_off;
__u8 ttl;
__u8 protocol;
__sum16 check;
__be32 saddr;
__be32 daddr;
/*The options start here. */
};
The alignment of iphdr is 4, not 8
doing id = ntohl(*(__be32 *)&iph->id); is valid
doing flush = (u16)((ntohl(*(__be32 *)iph) ^ len) | (id ^ IP_DF)); is valid as well.
If arm compiler decided to use a 8bytes load, thats a compiler bug.
(unless compiler was specifically told that alignment did not matter)
c02ac020: e8920840 ldm r2, {r6, fp} // HERE
c02ac024: e6bfbf3b rev fp, fp
c02ac028: e6bf6f36 rev r6, r6
c02ac02c: e22bc901 eor ip, fp, #16384 ; 0x4000
c02ac030: e0266008 eor r6, r6, r8
c02ac034: e18c6006 orr r6, ip, r6
^ permalink raw reply
* Re: alignment faults in 3.6
From: Russell King - ARM Linux @ 2012-10-11 10:32 UTC (permalink / raw)
To: Eric Dumazet
Cc: Måns Rullgård, Jon Masters, netdev, David Laight,
linux-arm-kernel
In-Reply-To: <1349950926.21172.8521.camel@edumazet-glaptop>
On Thu, Oct 11, 2012 at 12:22:06PM +0200, Eric Dumazet wrote:
> I took a look, and I dont see why/how gcc could use a ldm instruction
>
> Doing so assumed the alignment of the structure was 8 bytes, but its
> not.
>
> Networking stack mandates that IP headers are aligned on 4 bytes
> boundaries, not 8 bytes.
Err, no. ldm is "load multiple" not "load double". It loads multiple
32-bit registers, and its requirement for non-faulting behaviour is for
the pointer to be 4 byte aligned. However, "load double" requires 8
byte alignment.
^ permalink raw reply
* [PATCH] mcs7830: Fix link state detection
From: Ondrej Zary @ 2012-10-11 10:33 UTC (permalink / raw)
To: Andreas Mohr
Cc: Greg KH, davem, Michael Leun, netdev, Michael Leun, linux-kernel
The device had an undocumented "feature": it can provide a sequence of
spurious link-down status data even if the link is up all the time.
A sequence of 10 was seen so update the link state only after the device
reports the same link state 20 times.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Reported-by: Michael Leun <lkml20120218@newton.leun.net>
Tested-by: Michael Leun <lkml20120218@newton.leun.net>
---
drivers/net/usb/mcs7830.c | 21 ++++++++++++++-------
1 files changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
index 03c2d8d..3a02a5d 100644
--- a/drivers/net/usb/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
@@ -117,6 +117,7 @@ enum {
struct mcs7830_data {
u8 multi_filter[8];
u8 config;
+ u8 link_counter;
};
static const char driver_name[] = "MOSCHIP usb-ethernet driver";
@@ -633,19 +634,25 @@ static void mcs7830_status(struct usbnet *dev, struct
urb *urb)
{
u8 *buf = urb->transfer_buffer;
bool link;
+ struct mcs7830_data *data = mcs7830_get_data(dev);
if (urb->actual_length < 16)
return;
link = !(buf[1] & 0x20);
if (netif_carrier_ok(dev->net) != link) {
- if (link) {
- netif_carrier_on(dev->net);
- usbnet_defer_kevent(dev, EVENT_LINK_RESET);
- } else
- netif_carrier_off(dev->net);
- netdev_dbg(dev->net, "Link Status is: %d\n", link);
- }
+ data->link_counter++;
+ if (data->link_counter > 20) {
+ data->link_counter = 0;
+ if (link) {
+ netif_carrier_on(dev->net);
+ usbnet_defer_kevent(dev, EVENT_LINK_RESET);
+ } else
+ netif_carrier_off(dev->net);
+ netdev_dbg(dev->net, "Link Status is: %d\n", link);
+ }
+ } else
+ data->link_counter = 0;
}
static const struct driver_info moschip_info = {
--
Ondrej Zary
^ permalink raw reply related
* Re: unresponsive vlan on top of bond with fail_over_mac=active
From: Michal Kubecek @ 2012-10-11 10:37 UTC (permalink / raw)
To: Jay Vosburgh; +Cc: netdev, Andy Gospodarek
In-Reply-To: <8588.1349926471@death.nxdomain>
On Wed, Oct 10, 2012 at 08:34:31PM -0700, Jay Vosburgh wrote:
> Michal Kubecek <mkubecek@suse.cz> wrote:
> What network device are they using that requires fail_over_mac
> to be set to active?
I would have to ask for exact configuration, all I know for sure is that
the problem was reported for s390x (S390-64) architecture. I reproduced
it with VMware Workstation virtual devices which emulate Intel e1000.
> I tested some of this out earlier this year, and I don't recall
> having problems (although I'm not sure I did this exact test). The
> dev_uc_add() logic (in __dev_set_rx_mode) would put the underlying
> device into promiscuous mode if the hardware didn't support multiple
> unicast MAC addresses. dev_uc_add() was invoked by vlan_sync_address(),
> which is called by the vlan NETDEV_CHANGEADDR notifier callback.
Yes, this part works fine, I checked uc list with live crash session.
But as bonding driver doesn't set its ndo_set_rx_mode method, the
iformation about second MAC address doesn't propagate down to the
slaves.
> Bonding does propagate promisc to its slaves, but (as you point
> out) not the uc lists; is the hardware in question something that
> supports multiple unicast addresses (IFF_UNICAST_FLT)? The device I
> tested with does not support IFF_UNICAST_FLT, and (as I recall) would
> end up in promisc mode.
My tests were done with (emulated) e1000 which supports unicast
filtering (up to 14 addresses, according to what I've seen in the
driver). I'm not sure about the devices on s390x.
Michal Kubecek
^ permalink raw reply
* Re: alignment faults in 3.6
From: Måns Rullgård @ 2012-10-11 10:46 UTC (permalink / raw)
To: David Laight
Cc: Måns Rullgård, Jon Masters, linux-arm-kernel, netdev
In-Reply-To: <AE90C24D6B3A694183C094C60CF0A2F6026B703B@saturn3.aculab.com>
"David Laight" <David.Laight@ACULAB.COM> writes:
>> > It might be enough to use __attribute__((aligned(2))) on some structure
>> > members (actually does 'ldm' need 8 byte alignment?? - in which case
>> > aligned(4) is enough).
>>
>> The aligned attribute can only increase alignment.
>
> Not true.
> If you have:
>
> struct foo {
> short a;
> int b __attribute__((aligned(2)));
> short c;
> };
>
> You'll find sizeof (struct foo) is 8, and that, on arm/sparc etc,
> gcc will generate 2 16bit accesses (and shifts) for foo.b;
That is not what the manual says. Quoting:
When used on a struct, or struct member, the `aligned' attribute
can only increase the alignment
My gcc agrees with the manual:
$ cat foo.c
struct foo {
short a;
int b __attribute__((aligned(2)));
short c;
};
int foo(struct foo *f)
{
return f->b;
}
$ arm-unknown-linux-gnueabi-gcc-4.7.2 -O2 -o- -S foo.c
.text
.align 2
.global foo
.type foo, %function
foo:
ldr r0, [r0, #4]
bx lr
(compiler output edited for clarity)
This clearly says the 'b' member resides at an offset of 4 bytes into
the struct.
--
Måns Rullgård
mans@mansr.com
^ permalink raw reply
* Re: alignment faults in 3.6
From: Eric Dumazet @ 2012-10-11 10:49 UTC (permalink / raw)
To: Russell King - ARM Linux
Cc: Måns Rullgård, Jon Masters, netdev, David Laight,
linux-arm-kernel
In-Reply-To: <20121011103257.GO4625@n2100.arm.linux.org.uk>
On Thu, 2012-10-11 at 11:32 +0100, Russell King - ARM Linux wrote:
> On Thu, Oct 11, 2012 at 12:22:06PM +0200, Eric Dumazet wrote:
> > I took a look, and I dont see why/how gcc could use a ldm instruction
> >
> > Doing so assumed the alignment of the structure was 8 bytes, but its
> > not.
> >
> > Networking stack mandates that IP headers are aligned on 4 bytes
> > boundaries, not 8 bytes.
>
> Err, no. ldm is "load multiple" not "load double". It loads multiple
> 32-bit registers, and its requirement for non-faulting behaviour is for
> the pointer to be 4 byte aligned. However, "load double" requires 8
> byte alignment.
So if you have an alignment fault, thats because IP header is not
aligned on 4 bytes ?
If so a driver is buggy and must be fixed.
Please send us full stack trace
^ permalink raw reply
* Re: alignment faults in 3.6
From: Maxime Bizon @ 2012-10-11 10:56 UTC (permalink / raw)
To: Eric Dumazet
Cc: Russell King - ARM Linux, Måns Rullgård, Jon Masters,
netdev, David Laight, linux-arm-kernel
In-Reply-To: <1349952574.21172.8604.camel@edumazet-glaptop>
On Thu, 2012-10-11 at 12:49 +0200, Eric Dumazet wrote:
> So if you have an alignment fault, thats because IP header is not
> aligned on 4 bytes ?
>
> If so a driver is buggy and must be fixed.
So a driver that does not align the ip header is buggy ?
I always thought it was ok not to do so (with a potential performance
penalty).
I have some MIPS hardware that is not able to DMA on anything but 32bits
aligned addresses (bcm63xx). I tried once to add a memcpy instead of
taking unaligned faults and the result was *much slower* on a ipv4
forwarding test (which is what the hardware is used for).
--
Maxime
^ permalink raw reply
* Re: [PATCHv4 1/4] modem_shm: Add Modem Access Framework
From: Greg KH @ 2012-10-11 11:01 UTC (permalink / raw)
To: Arun MURTHY
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-doc@vger.kernel.org, alan@lxorguk.ukuu.org.uk
In-Reply-To: <F45880696056844FA6A73F415B568C695B9B3E3D8A@EXDCVYMBSTM006.EQ1STM.local>
On Thu, Oct 11, 2012 at 11:37:20AM +0200, Arun MURTHY wrote:
> > On Tue, Oct 09, 2012 at 07:37:02AM +0200, Arun MURTHY wrote:
> > > Any further comments?
> >
> > I was waiting for you to address all of the previous ones with a new set of
> > patches before burdening you with anything new :)
>
> There are not any changes in the code, this review was more like just
> explaining our platform, protocol, few terminology and design approach.
That all needs to go into the patches you send next time around :)
And I thought I did have some actual code comments in there somewhere...
greg k-h
^ permalink raw reply
* Re: [PATCH 0/3] virtio-net: inline header support
From: Michael S. Tsirkin @ 2012-10-11 11:04 UTC (permalink / raw)
To: Rusty Russell
Cc: kvm, netdev, linux-kernel, virtualization, Sasha Levin,
Paolo Bonzini, avi, Thomas Lendacky
In-Reply-To: <87k3ux98oc.fsf@rustcorp.com.au>
On Thu, Oct 11, 2012 at 10:33:31AM +1030, Rusty Russell wrote:
> Paolo Bonzini <pbonzini@redhat.com> writes:
> > Il 09/10/2012 06:59, Rusty Russell ha scritto:
> >> Paolo Bonzini <pbonzini@redhat.com> writes:
> >>> Il 05/10/2012 07:43, Rusty Russell ha scritto:
> >>>> That's good. But virtio_blk's scsi command is insoluble AFAICT. As I
> >>>> said to Anthony, the best rules are "always" and "never", so I'd really
> >>>> rather not have to grandfather that in.
> >>>
> >>> It is, but we can add a rule that if the (transport) flag
> >>> VIRTIO_RING_F_ANY_HEADER_SG is set, the cdb field is always 32 bytes in
> >>> virtio-blk.
> >>
> >> Could we do that? It's the cmd length I'm concerned about; is it always
> >> 32 in practice for some reason?
> >
> > It is always 32 or less except in very obscure cases that are pretty
> > much confined to iSCSI. We don't care about the obscure cases, and the
> > extra bytes don't hurt.
> >
> > BTW, 32 is the default cdb_size used by virtio-scsi.
> >
> >> Currently qemu does:
> >>
> >> struct sg_io_hdr hdr;
> >> memset(&hdr, 0, sizeof(struct sg_io_hdr));
> >> hdr.interface_id = 'S';
> >> hdr.cmd_len = req->elem.out_sg[1].iov_len;
> >> hdr.cmdp = req->elem.out_sg[1].iov_base;
> >> hdr.dxfer_len = 0;
> >>
> >> If it's a command which expects more output data, there's no way to
> >> guess where the boundary is between that command and the data.
> >
> > Yep, so I understood the problem right.
>
> OK. Well, Anthony wants qemu to be robust in this regard, so I am
> tempted to rework all the qemu drivers to handle arbitrary layouts.
> They could use a good audit anyway.
I agree here. Still trying to understand whether we can agree to use
a feature bit for this, or not.
> This would become a glaring exception, but I'm tempted to fix it to 32
> bytes at the same time as we get the new pci layout (ie. for the virtio
> 1.0 spec).
But this isn't a virtio-pci only issue, is it?
qemu has s390 bus with same limmitation.
How can we tie it to pci layout?
Maybe what you mean is to use a transport feature for this
and tie *that* to new layout in case of pci?
> The Linux driver would carefully be backwards compatible, of
> course, and the spec would document why.
>
> Cheers,
> Rusty.
^ permalink raw reply
* Re: alignment faults in 3.6
From: Eric Dumazet @ 2012-10-11 11:28 UTC (permalink / raw)
To: mbizon
Cc: Russell King - ARM Linux, Måns Rullgård, Jon Masters,
netdev, David Laight, linux-arm-kernel
In-Reply-To: <1349952970.1232.5.camel@sakura.staff.proxad.net>
On Thu, 2012-10-11 at 12:56 +0200, Maxime Bizon wrote:
> On Thu, 2012-10-11 at 12:49 +0200, Eric Dumazet wrote:
>
>
> > So if you have an alignment fault, thats because IP header is not
> > aligned on 4 bytes ?
> >
> > If so a driver is buggy and must be fixed.
>
> So a driver that does not align the ip header is buggy ?
>
exactly.
> I always thought it was ok not to do so (with a potential performance
> penalty).
>
Apparently not for some arches.
> I have some MIPS hardware that is not able to DMA on anything but 32bits
> aligned addresses (bcm63xx). I tried once to add a memcpy instead of
> taking unaligned faults and the result was *much slower* on a ipv4
> forwarding test (which is what the hardware is used for).
>
You probably are aware that a driver can use :
- a fragment to hold the frame given by the hardware, with whatever
alignment is needed by the hardware.
Then allocate an skb with enough room (128 bytes) to pull the headers as
needed later.
skb = netdev_alloc_skb_ip_align(dev, 128);
Attach the fragment to the skb, and feed stack with this skb.
(pull the ethernet header before calling eth_type_trans()
Most modern drivers exactly use this strategy and get nice performance.
Of course, if hardware doesnt need a strange alignment, we can avoid the
fragment and directly use
skb = netdev_alloc_skb_ip_align(dev, 1536);
So all drivers can be fixed if needed.
^ permalink raw reply
* Re: [PATCH 01/12] usbnet: introduce usbnet 3 command helpers
From: Ming Lei @ 2012-10-11 11:29 UTC (permalink / raw)
To: Oliver Neukum
Cc: David S. Miller, Greg Kroah-Hartman,
netdev-u79uwXL29TY76Z2rM5mHXA, linux-usb-u79uwXL29TY76Z2rM5mHXA,
Alan Stern
In-Reply-To: <1940520.W6hRn23j86-ugxBuEnWX9yG/4A2pS7c2Q@public.gmane.org>
On Thu, Oct 11, 2012 at 5:05 PM, Oliver Neukum <oneukum-l3A5Bk7waGM@public.gmane.org> wrote:
> That depends on whether an API change would be necessary.
> Changing the code only when necessary is no problem. But the
> API I want to do right from the beginning if that is possible.
For the auto-resume situation, the current API is OK even without
changes to task_struct.
>
> This depends on whether you get in your extension to task_struct.
> If you do, we can certainly use it also for the suspend case.
I will do it.
>
>> For error handling case, it is inevitably for usbnet to allocate memory
>> with GFP_KERNEL because no usbnet drivers have implemented
>> .pre_reset and .post_reset callback, and no such actual problems
>> have been reported until now, so it should be OK to not consider the
>> case now.
>>
>> So could we merge the patch set[1-11] first?
>
> Given the solution for error handling you came up with, yes, we can.
> Would you resubmit?
OK, will do it.
Thanks,
--
Ming Lei
--
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^ permalink raw reply
* Re: alignment faults in 3.6
From: Maxime Bizon @ 2012-10-11 11:47 UTC (permalink / raw)
To: Eric Dumazet
Cc: Måns Rullgård, Russell King - ARM Linux, netdev,
David Laight, Jon Masters, linux-arm-kernel
In-Reply-To: <1349954899.21172.8728.camel@edumazet-glaptop>
On Thu, 2012-10-11 at 13:28 +0200, Eric Dumazet wrote:
> You probably are aware that a driver can use :
>
> - a fragment to hold the frame given by the hardware, with whatever
> alignment is needed by the hardware.
>
> Then allocate an skb with enough room (128 bytes) to pull the headers as
> needed later.
>
> skb = netdev_alloc_skb_ip_align(dev, 128);
What happen at tx time, supposing that same hardware cannot do SG ?
Aren't we going to memcpy the data into the head ?
--
Maxime
^ permalink raw reply
* Re: alignment faults in 3.6
From: Eric Dumazet @ 2012-10-11 11:54 UTC (permalink / raw)
To: mbizon
Cc: Måns Rullgård, Russell King - ARM Linux, netdev,
David Laight, Jon Masters, linux-arm-kernel
In-Reply-To: <1349956055.1232.9.camel@sakura.staff.proxad.net>
On Thu, 2012-10-11 at 13:47 +0200, Maxime Bizon wrote:
> On Thu, 2012-10-11 at 13:28 +0200, Eric Dumazet wrote:
>
> > You probably are aware that a driver can use :
> >
> > - a fragment to hold the frame given by the hardware, with whatever
> > alignment is needed by the hardware.
> >
> > Then allocate an skb with enough room (128 bytes) to pull the headers as
> > needed later.
> >
> > skb = netdev_alloc_skb_ip_align(dev, 128);
>
> What happen at tx time, supposing that same hardware cannot do SG ?
>
> Aren't we going to memcpy the data into the head ?
>
Of course, if you use a forwarding setup, and the tx driver is not SG
capable, performance will be bad (You have to copy the data into a
single skb (linearize the skb))
But in 2012, having to use hardware without SG for a router sounds a bad
joke (if cpu speed is _also_ too low)
Adding get_unaligned() everywhere in linux network stacks is not an
option.
We actually want to be able to read the code and fix the bugs, not only
run it on a cheap low end router.
^ permalink raw reply
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