From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Olivier B." Subject: Re: Xen 4.0.1 & kernel Oops: 0000 [#1] SMP Date: Sun, 11 Jul 2010 00:46:29 +0200 Message-ID: <4C38F845.3050903@daevel.fr> References: <4C38F752.2000007@daevel.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <4C38F752.2000007@daevel.fr> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Sorry, here is the full trace : Jul 11 00:34:38 keron kernel: [10801.850551] alloc irq_desc for 1198=20 on node 0 Jul 11 00:34:38 keron kernel: [10801.850554] alloc kstat_irqs on node 0 Jul 11 00:34:38 keron kernel: [10802.030686] BUG: unable to handle=20 kernel NULL pointer dereference at 0000000000000110 Jul 11 00:34:38 keron kernel: [10802.031365] IP: []=20 netback_uevent+0x90/0xb9 Jul 11 00:34:38 keron kernel: [10802.031721] PGD 3880e067 PUD 3ef5c067=20 PMD 0 Jul 11 00:34:38 keron kernel: [10802.032082] Oops: 0000 [#1] SMP Jul 11 00:34:38 keron kernel: [10802.032442] last sysfs file:=20 /sys/devices/vif-1-0/uevent Jul 11 00:34:38 keron kernel: [10802.032772] CPU 1 Jul 11 00:34:38 keron kernel: [10802.033093] Modules linked in: 8021q=20 garp [last unloaded: scsi_wait_scan] Jul 11 00:34:38 keron kernel: [10802.033459] Pid: 4998, comm: udevd Not=20 tainted 2.6.32.16-dae-dom0-gb97a312 #1 S5520HC Jul 11 00:34:38 keron kernel: [10802.034113] RIP:=20 e030:[] [] netback_uevent+0x90/0xb9 Jul 11 00:34:38 keron kernel: [10802.034816] RSP: e02b:ffff88003773de08 =20 EFLAGS: 00010246 Jul 11 00:34:38 keron kernel: [10802.035156] RAX: 0000000000000000 RBX:=20 ffff8800370ad200 RCX: ffff880038809154 Jul 11 00:34:38 keron kernel: [10802.035500] RDX: 000000000000002f RSI:=20 ffff8800377e5620 RDI: ffff880038809000 Jul 11 00:34:38 keron kernel: [10802.035848] RBP: ffff880038809000 R08:=20 000000000000000a R09: ffff880038809904 Jul 11 00:34:38 keron kernel: [10802.036190] R10: ffff880038809154 R11:=20 00c0ade35678d607 R12: 0000000000000000 Jul 11 00:34:38 keron kernel: [10802.036534] R13: ffff8800377e5620 R14:=20 ffff88003d123000 R15: ffffffff81618590 Jul 11 00:34:38 keron kernel: [10802.036884] FS: 00007fd3004287a0(0000)=20 GS:ffff880002134000(0000) knlGS:0000000000000000 Jul 11 00:34:38 keron kernel: [10802.037561] CS: e033 DS: 0000 ES: 0000=20 CR0: 000000008005003b Jul 11 00:34:38 keron kernel: [10802.037906] CR2: 0000000000000110 CR3:=20 0000000038b2e000 CR4: 0000000000002660 Jul 11 00:34:38 keron kernel: [10802.038265] DR0: 0000000000000000 DR1:=20 0000000000000000 DR2: 0000000000000000 Jul 11 00:34:38 keron kernel: [10802.038626] DR3: 0000000000000000 DR6:=20 00000000ffff0ff0 DR7: 0000000000000400 Jul 11 00:34:38 keron kernel: [10802.038966] Process udevd (pid: 4998,=20 threadinfo ffff88003773c000, task ffff880037232240) Jul 11 00:34:38 keron kernel: [10802.039632] Stack: Jul 11 00:34:38 keron kernel: [10802.039969] 0000000000000001=20 ffff8800370ad240 ffff880038809000 ffff88003fc47340 Jul 11 00:34:38 keron kernel: [10802.040345] <0> ffff8800370ad250=20 ffffffff81245d22 ffffffff8100e1ff ffffffff810a0d4b Jul 11 00:34:38 keron kernel: [10802.041024] <0> ffffffff81618560=20 0000000000000000 ffff880038809000 ffffffff812469d5 Jul 11 00:34:38 keron kernel: [10802.042070] Call Trace: Jul 11 00:34:38 keron kernel: [10802.042406] [] ?=20 dev_uevent+0xff/0x141 Jul 11 00:34:38 keron kernel: [10802.042764] [] ?=20 xen_restore_fl_direct_end+0x0/0x1 Jul 11 00:34:38 keron kernel: [10802.043126] [] ?=20 __kmalloc+0xac/0xce Jul 11 00:34:38 keron kernel: [10802.043467] [] ?=20 show_uevent+0x7e/0xd1 Jul 11 00:34:38 keron kernel: [10802.043813] [] ?=20 dev_attr_show+0x1e/0x44 Jul 11 00:34:38 keron kernel: [10802.044157] [] ?=20 __get_free_pages+0x9/0x46 Jul 11 00:34:38 keron kernel: [10802.044506] [] ?=20 sysfs_read_file+0xab/0x131 Jul 11 00:34:38 keron kernel: [10802.044873] [] ?=20 vfs_read+0xa1/0xfc Jul 11 00:34:38 keron kernel: [10802.045219] [] ?=20 sys_read+0x45/0x6b Jul 11 00:34:38 keron kernel: [10802.045561] [] ?=20 system_call_fastpath+0x16/0x1b Jul 11 00:34:38 keron kernel: [10802.045916] Code: 81 31 c0 48 89 ef e8=20 50 93 f9 ff 85 c0 74 0f 4c 89 ef bd f4 ff ff ff e8 49 2d e8 ff eb 2c 4c=20 89 ef e8 3f 2d e8 ff 48 89 ef 31 c0 <49> 8b 94 24 10 01 00 00 48 c7 c6=20 6c 0b 55 81 bd f4 ff ff ff e8 Jul 11 00:34:38 keron kernel: [10802.047250] RIP []=20 netback_uevent+0x90/0xb9 Jul 11 00:34:38 keron kernel: [10802.047597] RSP Jul 11 00:34:38 keron kernel: [10802.047918] CR2: 0000000000000110 Jul 11 00:34:38 keron kernel: [10802.048551] ---[ end trace=20 0461e99cbca015f5 ]--- Jul 11 00:34:38 keron kernel: [10802.067905] alloc irq_desc for 1197=20 on node 0 Jul 11 00:34:38 keron kernel: [10802.068277] alloc kstat_irqs on node 0 Jul 11 00:34:38 keron kernel: [10802.119171] device vif1.0 entered=20 promiscuous mode Jul 11 00:34:38 keron kernel: [10802.119071] eth0: port 2(vif1.0)=20 entering forwarding state Le 11/07/2010 00:42, Olivier B. a =E9crit : > Hi, > > I'm using Xen 4 (version 4.0.1~rc3-1 from Debian sid), with a=20 > 2.6.32.16-*-gb97a312 pv-ops kernel (the stable-2.6.32 branch) ; on a=20 > Debian Squeeze amd64 system, with udev version 158. > > When I try to create a DomU, with a bridge setup, I obtain that : > > # time xm create /etc/xen/slhoka.cfg > Using config file "/etc/xen/slhoka.cfg". > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.032082] Oops: 0000 [#1] SMP > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.032442] last sysfs file: /sys/devices/vif-1-0/uevent > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.039632] Stack: > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.042070] Call Trace: > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.045916] Code: 81 31 c0 48 89 ef e8 50 93 f9 ff 85 c0 74=20 > 0f 4c 89 ef bd f4 ff ff ff e8 49 2d e8 ff eb 2c 4c 89 ef e8 3f 2d e8=20 > ff 48 89 ef 31 c0 <49> 8b 94 24 10 01 00 00 48 c7 c6 6c 0b 55 81 bd f4=20 > ff ff ff e8 > > Message from syslogd@keron at Jul 11 00:34:38 ... > kernel:[10802.047918] CR2: 0000000000000110 > > Error: Device 2048 (vbd) could not be connected. Hotplug scripts not=20 > working. > > real 1m41.546s > user 0m0.084s > sys 0m0.040s > > The "hotplug" error is probably thrown because of my udev version=20 > (158), no ? But the kernel oops seem strange to me. > If that can help, it's a "recent" CPU : > > processor : 0 > vendor_id : GenuineIntel > cpu family : 6 > model : 44 > model name : Intel(R) Xeon(R) CPU X5650 @ 2.67GHz > stepping : 2 > cpu MHz : 2666.700 > cache size : 12288 KB > fpu : yes > fpu_exception : yes > cpuid level : 11 > wp : yes > flags : fpu de tsc msr pae mce cx8 apic sep mtrr mca cmov pat=20 > clflush acpi mmx fxsr sse sse2 ss ht syscall nx lm constant_tsc=20 > rep_good nonstop_tsc aperfmperf pni pclmulqdq est ssse3 cx16 sse4_1=20 > sse4_2 popcnt aes hypervisor lahf_lm ida arat > bogomips : 5333.40 > clflush size : 64 > cache_alignment : 64 > address sizes : 40 bits physical, 48 bits virtual > power management: > > > Thanks for any advice, > Olivier B. > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel