linux-kernel - next-20081215: kernel BUG at block/cfq-iosched.c:1243

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Date:	Mon, 15 Dec 2008 21:29:13 +0300
From:	"Alexander Beregalov" <a.beregalov@...il.com>
To:	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, axboe@...nel.dk
Subject: next-20081215: kernel BUG at block/cfq-iosched.c:1243

Hi

[   22.857720] scsi_scan_0 used greatest stack depth: 4864 bytes left
[   22.859221] scsi 1:0:0:0: CD-ROM            HL-DT-ST CD-ROM GCR-8240N 1.10 PQ
: 0 ANSI: 5
[   23.077531] ------------[ cut here ]------------
[   23.080733] kernel BUG at block/cfq-iosched.c:1243!
[   23.080733] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[   23.080733] last sysfs file:
[   23.080733] CPU 3
[   23.080733] Modules linked in:
[   23.080733] Pid: 580, comm: scsi_scan_0 Tainted: G        W  2.6.28-rc8-next-
20081215 #98
[   23.080733] RIP: 0010:[<ffffffff80371160>]  [<ffffffff80371160>] cic_free_fun
c+0x18/0x88
[   23.080733] RSP: 0018:ffff88007ce9fe40  EFLAGS: 00010246
[   23.080733] RAX: ffff88007ceb6618 RBX: ffff88007cf1d680 RCX: 0000000000000001
[   23.080733] RDX: 0000000000000001 RSI: ffff88007cf1d680 RDI: ffff88007cea6000
[   23.080733] RBP: ffff88007ce9fe60 R08: 0000000000000246 R09: 0000000000000001
[   23.080733] R10: ffff88007ce9fde0 R11: ffff88007f0489c0 R12: ffff88007cea6000
[   23.080733] R13: ffff88007ce9ff00 R14: ffff88007cc49568 R15: ffff88007cc49568
[   23.080733] FS:  0000000000000000(0000) GS:ffff88007f402a28(0000) knlGS:00000
00000000000
[   23.080733] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[   23.080733] CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0
[   23.080733] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   23.080733] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   23.080733] Process scsi_scan_0 (pid: 580, threadinfo ffff88007ce9e000, task
ffff88007cc49310)
[   23.080733] Stack:
[   23.080733]  ffff88007cf1d6f8 ffff88007cea6000 ffff88007ce9ff00 ffff88007cc49
568
[   23.080733]  ffff88007ce9fe80 ffffffff803711f5 ffff88007cea6000 ffff88007cc49
310
[   23.080733]  ffff88007ce9fea0 ffffffff8036c985 ffff88007ce9ff00 ffff88007cea6
000
[   23.080733] Call Trace:
[   23.080733]  [<ffffffff803711f5>] cfq_free_io_context+0x25/0x2f
[   23.080733]  [<ffffffff8036c985>] put_io_context+0x53/0x72
[   23.080733]  [<ffffffff8036ca61>] exit_io_context+0x8e/0x95
[   23.080733]  [<ffffffff8023a679>] do_exit+0x858/0x88f
[   23.080733]  [<ffffffff8020c901>] child_rip+0x11/0x20
[   23.080733]  [<ffffffff8020c2c0>] ? restore_args+0x0/0x30
[   23.080733]  [<ffffffff80249f30>] ? kthread+0x0/0x76
[   23.080733]  [<ffffffff8020c8f0>] ? child_rip+0x0/0x20
[   23.080733] Code: c6 75 92 60 80 48 89 cf 31 c0 e8 45 b3 00 00 c9 48 98 c3 55
 48 89 e5 41 56 41 55 41 54 49 89 fc 53 48 89 f3 48 83 7e 08 00 75 04 <0f> 0b eb
 fe 4c 8d 6f 08 4c 89 ef e8 77 40 17 00 48 8b 73 08 49
[   23.080733] RIP  [<ffffffff80371160>] cic_free_func+0x18/0x88
[   23.080733]  RSP <ffff88007ce9fe40>
[   25.744530] ---[ end trace 4eaa2a86a8e2da22 ]---
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