From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 60518] Heavy network traffic between guest and host triggers kernel oops
Date: Tue, 06 Aug 2013 08:55:31 +0000 [thread overview]
Message-ID: <bug-60518-28872-PS48435vDF@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-60518-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=60518
Tim Käck <timkack@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |timkack@gmail.com
--- Comment #3 from Tim Käck <timkack@gmail.com> ---
This does unfortunately still happens in 3.10
Linux ArchSTAR 3.10.3-1-ARCH #1 SMP PREEMPT Fri Jul 26 11:26:59 CEST 2013
x86_64 GNU/Linux
Relevant oops trace:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff8112eea5>] put_page+0x5/0x40
PGD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: vhost_net macvtap macvlan fuse joydev hid_apple hidp
ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf
snd_timer pci_hotplug parport ptp pps_core libphy lpc_ich snd i5k_amb
soundcore button processor pci_stub vboxpci(O) vboxnetflt(O) vbo..._mod mptbase
CPU: 3 PID: 4234 Comm: vhost-4233 Tainted: P O 3.10.3-1-ARCH #1
Hardware name: Dell Inc. Precision WorkStation T7400 /0RW199, BIOS A04
08/21/2008
task: ffff880427672a30 ti: ffff8803b9a22000 task.ti: ffff8803b9a22000
RIP: 0010:[<ffffffff8112eea5>] [<ffffffff8112eea5>] put_page+0x5/0x40
RSP: 0018:ffff8803b9a23c70 EFLAGS: 00010202
RAX: 0000000000000140 RBX: ffff8803996b3ec0 RCX: 0000000000000000
RDX: ffff8803b9a23fd8 RSI: ffff8803996b3ec0 RDI: 0000000000000000
RBP: ffff8803b9a23c90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000012
R13: ffff8803a7a38700 R14: 000000000000000c R15: ffff8803a7a38700
FS: 0000000000000000(0000) GS:ffff88043fcc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 000000034a32f000 CR4: 00000000000427e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
ffffffff813b8f38 ffff8803a7a38700 ffff8803a7a38700 ffffffffa005f1b4
ffff8803b9a23ca8 ffffffff813b8fe4 ffff8803be588800 ffff8803b9a23cd0
ffffffff813b9046 ffff8803be588800 000000000000b38a 000000000000b396
Call Trace:
[<ffffffff813b8f38>] ? skb_release_data+0x88/0x110
[<ffffffffa005f1b4>] ? tun_get_user+0x724/0x800 [tun]
[<ffffffff813b8fe4>] skb_release_all+0x24/0x30
[<ffffffff813b9046>] kfree_skb+0x36/0xe0
[<ffffffffa005f1b4>] tun_get_user+0x724/0x800 [tun]
[<ffffffffa005f2e4>] tun_sendmsg+0x54/0x80 [tun]
[<ffffffffa016aa00>] handle_tx+0x180/0x560 [vhost_net]
[<ffffffffa016ae15>] handle_tx_kick+0x15/0x20 [vhost_net]
[<ffffffffa0167437>] vhost_worker+0xf7/0x1a0 [vhost_net]
[<ffffffffa0167340>] ? vhost_work_flush+0x100/0x100 [vhost_net]
[<ffffffff8107a610>] kthread+0xc0/0xd0
[<ffffffff8107a550>] ? kthread_create_on_node+0x120/0x120
[<ffffffff814ca6ac>] ret_from_fork+0x7c/0xb0
[<ffffffff8107a550>] ? kthread_create_on_node+0x120/0x120
Code: d0 f3 90 49 8b 0c 24 f7 c1 00 00 00 01 75 f2 83 80 44 e0 ff ff 01 e9 f1
fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 ...0f 94 c0 84
RIP [<ffffffff8112eea5>] put_page+0x5/0x40
RSP <ffff8803b9a23c70>
CR2: 0000000000000000
---[ end trace df427221626605d8 ]---
Reproduction steps (almost 100% of the time):
1) set guest A to be NFS server
2) create deep folder structure with lots of tiny files and share it /share
3) mount on guest B and on host
4) Copy 2 Gb file from Guest B to /share
5) At the same time do "find /share -print > /dev/null' on host
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next prev parent reply other threads:[~2013-08-06 8:55 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-05 12:47 [Bug 60518] New: Heavy network traffic between guest and host triggers kernel oops bugzilla-daemon
2013-07-05 15:06 ` [Bug 60518] " bugzilla-daemon
2013-07-07 10:19 ` bugzilla-daemon
2013-08-06 8:55 ` bugzilla-daemon [this message]
2013-08-07 12:24 ` bugzilla-daemon
2013-08-13 18:57 ` bugzilla-daemon
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