netdev - RE: ixgbe dump

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Message-ID: <29F4ED941D916B48B88B4D2A4F3D1B9C01CBFC68C5@orsmsx509.amr.corp.intel.com>
Date:	Thu, 18 Nov 2010 11:30:08 -0800
From:	"Skidmore, Donald C" <donald.c.skidmore@...el.com>
To:	Yinghai Lu <yinghai@...nel.org>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	David Miller <davem@...emloft.net>
CC:	NetDev <netdev@...r.kernel.org>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>
Subject: RE: ixgbe dump

>-----Original Message-----
>From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org] On
>Behalf Of Yinghai Lu
>Sent: Wednesday, November 17, 2010 5:22 PM
>To: Brandeburg, Jesse; David Miller
>Cc: NetDev
>Subject: ixgbe dump
>
>[ 1546.287521] md: stopping all md devices.
>[ 1547.283729] kvm: exiting hardware virtualization
>[ 1547.292876] sd 2:2:1:0: [sdb] Synchronizing SCSI cache
>[ 1547.293831] sd 2:2:0:0: [sda] Synchronizing SCSI cache
>[ 1547.299627] BUG: unable to handle kernel NULL pointer dereference at
>0000000000000033
>[ 1547.315819] IP: [<ffffffff81746273>] ixgbe_set_rx_mode+0x265/0x38e
>[ 1547.316448] PGD 3ff4487067 PUD 3ff216b067 PMD 0
>[ 1547.335626] Oops: 0000 [#1] SMP
>[ 1547.335941] last sysfs file: /sys/kernel/kexec_loaded
>[ 1547.336381] CPU 0
>[ 1547.336548] Modules linked in:
>[ 1547.355798]
>[ 1547.355968] Pid: 25630, comm: kexec Not tainted 2.6.37-rc2-tip-yh-01961-
>g6034289-dirty #281      /Sun Fire X4800
>[ 1547.375849] RIP: 0010:[<ffffffff81746273>]  [<ffffffff81746273>]
>ixgbe_set_rx_mode+0x265/0x38e
>[ 1547.395543] RSP: 0018:ffff881fb9d49ce8  EFLAGS: 00010287
>[ 1547.396080] RAX: 0000000000000000 RBX: ffff88dffe5a0940 RCX:
>ffff88dffe5a0940
>[ 1547.415635] RDX: 0000000000000000 RSI: 0000000000000001 RDI:
>ffffc90077780000
>[ 1547.416299] RBP: ffff881fb9d49d48 R08: 0000000000000000 R09:
>0000000000000000
>[ 1547.435860] R10: 000000000000a608 R11: 0000000000000000 R12:
>0000000000000000
>[ 1547.455516] R13: ffff88dffe5a0000 R14: 0000000000003400 R15:
>ffff881fb9d49db7
>[ 1547.456257] FS:  00000000006e0850(0063) GS:ffff88207d600000(0000)
>knlGS:0000000000000000
>[ 1547.475937] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>[ 1547.495330] CR2: 0000000000000033 CR3: 0000003ffa77e000 CR4:
>00000000000006f0
>[ 1547.496009] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>0000000000000000
>[ 1547.515594] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
>0000000000000400
>[ 1547.516229] Process kexec (pid: 25630, threadinfo ffff881fb9d48000, task
>ffff881f8a57a2d0)
>[ 1547.536039] Stack:
>[ 1547.536244]  0000000000000040 0000002b00000000 ffff881ffedc1000
>0000000000000006
>[ 1547.555894]  ffff88dffe5a1b40 0b00000081454ec8 ffff881fb9d49d48
>ffff88dffe5a0940
>[ 1547.575411]  ffff881ffedc1000 000000000000001e 0000000000000000
>ffff881fb9d49db7
>[ 1547.576131] Call Trace:
>[ 1547.595251]  [<ffffffff8174a8f4>] __ixgbe_shutdown+0x9d/0x153
>[ 1547.595770]  [<ffffffff8174a9c4>] ixgbe_shutdown+0x1a/0x43
>[ 1547.615250]  [<ffffffff814574bb>] pci_device_shutdown+0x2c/0x40
>[ 1547.615887]  [<ffffffff8151c5e9>] device_shutdown+0x75/0xb0
>[ 1547.635268]  [<ffffffff8108f461>] kernel_restart_prepare+0x2c/0x33
>[ 1547.635927]  [<ffffffff810bc821>] kernel_kexec+0x38/0x6b
>[ 1547.655252]  [<ffffffff8108f618>] sys_reboot+0x156/0x194
>[ 1547.655765]  [<ffffffff8114422a>] ? __d_free+0x59/0x5e
>[ 1547.675145]  [<ffffffff81144283>] ? d_free+0x54/0x66
>[ 1547.675612]  [<ffffffff8114439d>] ? d_kill+0x3b/0x43
>[ 1547.695025]  [<ffffffff81144a1c>] ? dput+0x40/0x140
>[ 1547.695539]  [<ffffffff811351a9>] ? fput+0x1d7/0x1e6
>[ 1547.696045]  [<ffffffff81036c0c>] ? sysret_check+0x27/0x62
>[ 1547.715426]  [<ffffffff81cd9772>] ? trace_hardirqs_on_thunk+0x3a/0x3f
>[ 1547.734897]  [<ffffffff81036bdb>] system_call_fastpath+0x16/0x1b
>[ 1547.735428] Code: d2 e9 81 00 00 00 48 8b 83 00 12 00 00 8b 80 88 50 00
>00 0d 00 00 00 80 e9 a7 00 00 00 48 8b 81 00 0a 00 00 48 8b bb 00 12 00 00
><0f> b6 40 33 83 f8 3f 7f 0d 89 c6 c1 e6 06 81 c6 28 10 00 00 eb
>[ 1547.775262] RIP  [<ffffffff81746273>] ixgbe_set_rx_mode+0x265/0x38e
>[ 1547.775909]  RSP <ffff881fb9d49ce8>
>[ 1547.794997] CR2: 0000000000000033
>[ 1547.795987] ---[ end trace 4ed9616adc45007c ]---
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Thanks for the dump. 

I believe I've found the problem and will get a patch to Jeff shortly.

Thanks again,
-Don Skidmore <donald.c.skidmore@...el.com>

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