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SubjectRe: kernel BUG at block/blk-timeout.c:178!
On Thu, Dec 04 2008, Alan D. Brunelle wrote:
> (I'll be checking into reproducibility &c., but for now...)
>
> Using git tree as of:
>
> commit 6a1214113090905aca6a492fc8ef10d84c608a69
> Merge: c07f62e... 2642b11...
> Author: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Mon Dec 1 09:34:23 2008 -0800
>
> Merge branch 'for-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/ie
>
> * 'for-linus' of
> git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linu
> ieee1394: sbp2: fix race condition in state change
> ieee1394: fix list corruption (reported at module removal)
> firewire: fw-sbp2: another iPod mini quirk entry
> ieee1394: sbp2: another iPod mini quirk entry
>
> I just got whilst booting (16-way AMD64, 126GB RAM, 3@CCISS, 4@QLA):
>
> ------------[ cut here ]------------
> kernel BUG at block/blk-timeout.c:178!
> invalid opcode: 0000 [#1] SMP
> last sysfs file:
> CPU 0
> Pid: 268, comm: scsi_wq_0 Not tainted 2.6.28-rc6 #13
> RIP: 0010:[<ffffffff804e8d4d>] [<ffffffff804e8d4d>] blk_add_timer+0xdd/0xf0
> RSP: 0018:ffff88087b6c3830 EFLAGS: 00010002
> RAX: ffff88087cdf4408 RBX: ffff88087cded670 RCX: ffff88087cdf4408
> RDX: ffff88087cded670 RSI: ffff88087cdf42c8 RDI: ffff88087cdf42c8
> RBP: ffff88087b6c3840 R08: 0000000000000020 R09: ffff88087cded670
> R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000020
> R13: ffff88087cdf42c8 R14: 0000000000000020 R15: 0000000000000008
> FS: 0000000000000000(0000) GS:ffffffff80f76980(0000) knlGS:0000000000000000
> CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> Process scsi_wq_0 (pid: 268, threadinfo ffff88087b6c2000, task
> ffff88087bf706c0)
> Stack:
> ffff88087cded670 ffff88087b6cf460 ffff88087b6c3850 ffffffff804e2308
> ffff88087b6c3890 ffffffff804e5566 ffff88087cded670 ffff88087cded670
> ffff88087cdf1800 ffff88087cded670 ffff88087cded670 ffff88087cdf42c8
> Call Trace:
> [<ffffffff804e2308>] elv_dequeue_request+0x48/0x60
> [<ffffffff804e5566>] blk_queue_start_tag+0x96/0x130
> [<ffffffff8060c900>] scsi_request_fn+0x120/0x5a0
> [<ffffffff804e47db>] __generic_unplug_device+0x2b/0x40
> [<ffffffff804e7d56>] blk_execute_rq_nowait+0x66/0xb0
> [<ffffffff804e7dfd>] blk_execute_rq+0x5d/0xb0
> [<ffffffff80308c80>] ? sysfs_ilookup_test+0x0/0x20
> [<ffffffff8063011e>] hp_sw_tur+0xbe/0x230
> [<ffffffff8062ecc6>] ? scsi_dh_handler_lookup+0x56/0xb0
> [<ffffffff806305c8>] hp_sw_bus_attach+0x58/0x160
> [<ffffffff8062eba2>] scsi_dh_handler_attach+0x32/0x40
> [<ffffffff8062f0da>] scsi_dh_notifier+0x6a/0xa0
> [<ffffffff8025f3df>] notifier_call_chain+0x3f/0x80
> [<ffffffff8025f7f8>] __blocking_notifier_call_chain+0x58/0x80
> [<ffffffff8025f831>] blocking_notifier_call_chain+0x11/0x20
> [<ffffffff805b4703>] device_add+0x133/0x650
> [<ffffffff805ba50c>] ? attribute_container_device_trigger+0xbc/0xd0
> [<ffffffff80612944>] scsi_sysfs_add_sdev+0x64/0x280
> [<ffffffff80610379>] scsi_probe_and_add_lun+0xdb9/0xde0
> [<ffffffff80610a07>] __scsi_scan_target+0x4d7/0x6f0
> [<ffffffff806112e0>] scsi_scan_target+0xc0/0xd0
> [<ffffffff8061c2f7>] fc_scsi_scan_rport+0xb7/0xc0
> [<ffffffff8061c240>] ? fc_scsi_scan_rport+0x0/0xc0
> [<ffffffff80256c70>] run_workqueue+0x70/0x120
> [<ffffffff80256d80>] worker_thread+0x60/0xb0
> [<ffffffff8025aca0>] ? autoremove_wake_function+0x0/0x40
> [<ffffffff80256d20>] ? worker_thread+0x0/0xb0
> [<ffffffff8025a8e9>] kthread+0x49/0x80
> [<ffffffff8020d269>] child_rip+0xa/0x11
> [<ffffffff8025a8a0>] ? kthread+0x0/0x80
> [<ffffffff8020d25f>] ? child_rip+0x0/0x11
> Code: 48 8d bb 28 03 00 00 48 89 c6 e8 af 6f d6 ff 48 83 c4 08 5b c9 c3
> 48 8b 15 81 cb a9 00 89 c0 48 01 d0 48 89 87 38 01 00 00 eb 90 <0f> 0b
> eb fe 0f 1f 80 00 00 00 00 0f 0b eb fe 0f 1f 40 00 55 48
> RIP [<ffffffff804e8d4d>] blk_add_timer+0xdd/0xf0
> RSP <ffff88087b6c3830>
> ---[ end trace 1d1b7db6f1a8b5dd ]---

Alan, can you try latest -git? feaf3848a813a106f163013af6fcf6c4bfec92d9
or later.

--
Jens Axboe



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