netdev - Kernel crash in 2.6.39-rc2-wl

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Message-ID: <4D9CCD72.7020308@candelatech.com>
Date:	Wed, 06 Apr 2011 13:30:42 -0700
From:	Ben Greear <greearb@...delatech.com>
To:	netdev <netdev@...r.kernel.org>
Subject: Kernel crash in 2.6.39-rc2-wl

This is from today's wireless-testing kernel, with a few non-tainting
patches related to wireless stuff.  In general, 39-rc2 seems pretty
flaky, but on this boot, this is the first kernel splat.

I had reloaded our user-space network-config DB, which would have deleted
and created some VETH and MAC-VLAN interfaces, and a bunch of
protocol sockets, virtual-routers (xorp with unique routing tables) etc.


BUG: unable to handle kernel paging request at 50435453
IP: [<c04d8ac6>] __kmalloc_track_caller+0xd8/0x117
*pde = 00000000
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:1/0:0:1:0/block/sda/sda1/stat
Modules linked in: xt_CT iptable_raw xt_DSCP xt_dscp xt_string xt_owner xt_NFQUEUE xt_multiport xt_mark xt_iprange xt_hashlimit xt_connmark xt_addrty]

Pid: 12747, comm: xorp_rtrmgr Not tainted 2.6.39-rc2-wl+ #56 To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M.
EIP: 0060:[<c04d8ac6>] EFLAGS: 00210206 CPU: 0
EIP is at __kmalloc_track_caller+0xd8/0x117
EAX: c0b18ee0 EBX: f5402500 ECX: 0001d3c9 EDX: 00000000
ESI: 50435453 EDI: 0001d3c8 EBP: f17ddd00 ESP: f17ddce8
  DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process xorp_rtrmgr (pid: 12747, ti=f17dc000 task=f147bde0 task.ti=f17dc000)
Stack:
  c07869c6 000000d0 000001fc f1284fc0 000000d0 f5487f80 f17ddd1c c07468b9
  00000001 00000140 f15e0000 f15e0000 00000000 f17ddd34 c07869c6 ffffffff
  f15e0000 00010000 f17ddd88 f17ddd98 c0787005 00004040 00000000 00000002
Call Trace:
  [<c07869c6>] ? sk_stream_alloc_skb+0x2c/0xc4
  [<c07468b9>] __alloc_skb+0x5d/0xf9
  [<c07869c6>] sk_stream_alloc_skb+0x2c/0xc4
  [<c0787005>] tcp_sendmsg+0x16d/0x714
  [<c07a1776>] inet_sendmsg+0x55/0x5e
  [<c073ef79>] __sock_sendmsg+0x56/0x5f
  [<c073f608>] sock_sendmsg+0x98/0xac
  [<c0461879>] ? mark_lock+0x1e/0x1de
  [<c042b66d>] ? pick_next_highest_task_rt+0x148/0x148
  [<c04e643e>] ? fget_light+0x30/0xa4
  [<c073f686>] ? sockfd_lookup_light+0x1b/0x4b
  [<c073fc0f>] sys_sendto+0xaf/0xcb
  [<c045500b>] ? __run_hrtimer+0xbc/0x106
  [<c04633b5>] ? lock_release_non_nested+0x86/0x1d8
  [<c04c10a1>] ? might_fault+0x4c/0x86
  [<c073fc48>] sys_send+0x1d/0x1f
  [<c0740bb7>] sys_socketcall+0xe6/0x1aa
  [<c07fa19c>] sysenter_do_call+0x12/0x38
  [<c07f0000>] ? timer_cpu_notify+0x47/0x222
Code: d2 75 13 8b 4d e8 8b 55 ec 50 89 d8 e8 e9 f6 ff ff 5f 89 c6 eb 21 8b 03 64 8b 30 39 d6 75 d2 64 8b 48 04 39 f9 75 ca 8b 53 14 41 <8b> 14 16 64
EIP: [<c04d8ac6>] __kmalloc_track_caller+0xd8/0x117 SS:ESP 0068:f17ddce8
CR2: 0000000050435453
BUG: unable to handle kernel paging request

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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