From: Jiri Slaby <jslaby@suse.cz>
To: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>, LKML <linux-kernel@vger.kernel.org>,
"jirisl >> Jiri Slaby" <jirislaby@gmail.com>
Subject: NULL pointer dereference at blk_drain_queue
Date: Thu, 14 Jun 2012 11:04:08 +0200 [thread overview]
Message-ID: <4FD9A908.90307@suse.cz> (raw)
Hi,
with today's -next I'm (reproducibly) getting this while updating packages:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff8108cd16>] __wake_up_common+0x26/0x90
PGD 463f1067 PUD 463f2067 PMD 0
Oops: 0000 [#1] SMP
CPU 1
Modules linked in:
Pid: 2711, comm: kworker/1:0 Not tainted 3.5.0-rc2-next-20120614_64+
#1752 Bochs Bochs
RIP: 0010:[<ffffffff8108cd16>] [<ffffffff8108cd16>]
__wake_up_common+0x26/0x90
RSP: 0018:ffff880047221cb0 EFLAGS: 00010082
RAX: 0000000000000086 RBX: ffff880046350888 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff880046350888
RBP: ffff880047221cf0 R08: 0000000000000000 R09: 00000001000c0009
R10: ffff880047804480 R11: 0000000000000000 R12: ffff880046350890
R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000003
FS: 0000000000000000(0000) GS:ffff880049700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000045ced000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process kworker/1:0 (pid: 2711, threadinfo ffff880047220000, task
ffff8800435bc5c0)
Stack:
000000004628da68 0000000000000000 ffff88004970d340 ffff880046350888
0000000000000086 0000000000000003 0000000000000000 0000000000000000
ffff880047221d30 ffffffff8108d9a3 ffff88004970d340 ffff880046350848
Call Trace:
[<ffffffff8108d9a3>] __wake_up+0x43/0x70
[<ffffffff81267f96>] blk_drain_queue+0xf6/0x120
[<ffffffff8126803f>] blk_cleanup_queue+0x7f/0xd0
[<ffffffff814a9a80>] md_free+0x50/0x70
[<ffffffff8127b3c2>] kobject_cleanup+0x82/0x1b0
[<ffffffff8127b24b>] kobject_put+0x2b/0x60
[<ffffffff814a97ef>] mddev_delayed_delete+0x2f/0x40
[<ffffffff8107e1ab>] process_one_work+0x11b/0x3f0
[<ffffffff814a97c0>] ? restart_array+0xc0/0xc0
[<ffffffff8107f94e>] worker_thread+0x12e/0x340
[<ffffffff8107f820>] ? manage_workers.isra.29+0x1f0/0x1f0
[<ffffffff81084e1e>] kthread+0x8e/0xa0
[<ffffffff8160add4>] kernel_thread_helper+0x4/0x10
[<ffffffff81084d90>] ? flush_kthread_worker+0x70/0x70
[<ffffffff8160add0>] ? gs_change+0xb/0xb
Code: 80 00 00 00 00 55 48 89 e5 41 57 41 89 f7 41 56 41 89 ce 41 55 41
54 4c 8d 67 08 53 48 83 ec 18 89 55 c4 48 8b 57 08 4c 89 45 c8 <4c> 8b
2a 48 8d 42 e8 49 83 ed 18 49 39 d4 75 0d eb 40 0f 1f 84
regards,
--
js
suse labs
next reply other threads:[~2012-06-14 9:04 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-14 9:04 Jiri Slaby [this message]
2012-06-14 9:16 ` NULL pointer dereference at blk_drain_queue Jens Axboe
2012-06-14 9:16 ` Jens Axboe
2012-06-14 9:42 ` Jiri Slaby
2012-06-14 13:20 ` Asias He
2012-06-14 13:21 ` Jiri Slaby
2012-06-15 3:06 ` Asias He
2012-06-14 13:25 ` Jens Axboe
2012-06-15 3:06 ` Asias He
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