linux-kernel - [boot crash] Re: [GIT PULL[ block drivers bits for 3.8

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Message-ID: <20121218092554.GA3823@gmail.com>
Date:	Tue, 18 Dec 2012 10:25:54 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Jens Axboe <axboe@...nel.dk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [boot crash] Re: [GIT PULL[ block drivers bits for 3.8


* Jens Axboe <axboe@...nel.dk> wrote:

> Hi Linus,
> 
> Now that the core bits are in, here are the driver bits for 3.8. The
> branch contains:

FYI, I'm getting a divide-by-zero boot crash (serial log capture 
below) with the attached config.

Reproduced with 848b81415c42.

The bug might have gone upstream between 8874e81 (Linus's tree 
from yesterday) and 848b81415c42 (Linus's tree from today). Or 
it's from earlier and I only triggered it today.

( Note that every log line is duplicated, haven't tracked that
  down yet, earlyprintk=,keep might be busted. )

Thanks,

	Ingo

[   25.231613] PM: Adding info for isa:3c509.0
[   25.231613] PM: Adding info for isa:3c509.0
[   25.240533]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 >
[   25.240533]  sda: sda1 sda2 sda3 < sda5 sda6 sda7 sda8 sda9 sda10 >
[   25.252964] device: '3c509.0': device_unregister
[   25.252964] device: '3c509.0': device_unregister
[   25.262160] bus: 'isa': remove device 3c509.0
[   25.262160] bus: 'isa': remove device 3c509.0
[   25.271480] divide error: 0000 [#1] [   25.271480] divide error: 0000 [#1] PREEMPT PREEMPT DEBUG_PAGEALLOCDEBUG_PAGEALLOC
[   25.271773] Pid: 81, comm: kworker/u:2 Not tainted 3.7.0-11557-g252f264-dirty #215148 System manufacturer System Product Name/A8N-E
[   25.271773] Pid: 81, comm: kworker/u:2 Not tainted 3.7.0-11557-g252f264-dirty #215148 System manufacturer System Product Name/A8N-E
[   25.271773] EIP: 0060:[<c13ce50b>] EFLAGS: 00010246 CPU: 0
[   25.271773] EIP: 0060:[<c13ce50b>] EFLAGS: 00010246 CPU: 0
[   25.271773] EIP is at add_partition+0xe0/0x2d6
[   25.271773] EIP is at add_partition+0xe0/0x2d6
[   25.271773] EAX: 00007e00 EBX: f4a5d008 ECX: f4a50a00 EDX: 00000000
[   25.271773] EAX: 00007e00 EBX: f4a5d008 ECX: f4a50a00 EDX: 00000000
[   25.271773] ESI: 00007e00 EDI: 00000000 EBP: f4a4dd7c ESP: f4a4dd4c
[   25.271773] ESI: 00007e00 EDI: 00000000 EBP: f4a4dd7c ESP: f4a4dd4c
[   25.271773]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[   25.271773]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068
[   25.271773] CR0: 8005003b CR2: 00000000 CR3: 021b6000 CR4: 00000790
[   25.271773] CR0: 8005003b CR2: 00000000 CR3: 021b6000 CR4: 00000790
[   25.271773] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[   25.271773] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[   25.271773] DR6: ffff0ff0 DR7: 00000400
[   25.271773] DR6: ffff0ff0 DR7: 00000400
[   25.271773] Process kworker/u:2 (pid: 81, ti=f4a4c000 task=f4a35000 task.ti=f4a4c000)
[   25.271773] Process kworker/u:2 (pid: 81, ti=f4a4c000 task=f4a35000 task.ti=f4a4c000)
[   25.271773] Stack:
[   25.271773] Stack:
[   25.271773]  c1066f81[   25.271773]  c1066f81 f4a52270 f4a52270 f4a5f160 f4a5f160 00000000 00000000 00000001 00000001 f4a5d028 f4a5d028 00000000 00000000 f4a45780 f4a45780
[   25.271773]  00000000[   25.271773]  00000000 00000001 00000001 f4a45780 f4a45780 f4a78000 f4a78000 f4a4ddd8 f4a4ddd8 c13ce918 c13ce918 0000003f 0000003f 00000000 00000000
[   25.271773]  03a962b1[   25.271773]  03a962b1 00000000 00000000 00000000 00000000 f4a780b5 f4a780b5 03a962b1 03a962b1 00000000 00000000 f4a457e4 f4a457e4 00000000 00000000
[   25.271773] Call Trace:
[   25.271773] Call Trace:
[   25.271773]  [<c1066f81>] ? call_rcu+0x44/0x4a
[   25.271773]  [<c1066f81>] ? call_rcu+0x44/0x4a
[   25.271773]  [<c13ce918>] rescan_partitions+0x217/0x26b
[   25.271773]  [<c13ce918>] rescan_partitions+0x217/0x26b
[   25.271773]  [<c10cd396>] __blkdev_get+0x16e/0x34c
[   25.271773]  [<c10cd396>] __blkdev_get+0x16e/0x34c
[   25.271773]  [<c10cd693>] blkdev_get+0x11f/0x233
[   25.271773]  [<c10cd693>] blkdev_get+0x11f/0x233
[   25.271773]  [<c10b798b>] ? spin_unlock+0x8/0xa
[   25.271773]  [<c10b798b>] ? spin_unlock+0x8/0xa
[   25.271773]  [<c10b8684>] ? unlock_new_inode+0x34/0x38
[   25.271773]  [<c10b8684>] ? unlock_new_inode+0x34/0x38
[   25.271773]  [<c10ccd48>] ? bdget+0xf0/0xfd
[   25.271773]  [<c10ccd48>] ? bdget+0xf0/0xfd
[   25.271773]  [<c14922fa>] ? put_device+0xf/0x11
[   25.271773]  [<c14922fa>] ? put_device+0xf/0x11
[   25.271773]  [<c13cbe57>] ? disk_put_part+0xf/0x11
[   25.271773]  [<c13cbe57>] ? disk_put_part+0xf/0x11
[   25.271773]  [<c13ccc34>] add_disk+0x230/0x324
[   25.271773]  [<c13ccc34>] add_disk+0x230/0x324
[   25.271773]  [<c163b75c>] sd_probe_async+0x101/0x19d
[   25.271773]  [<c163b75c>] sd_probe_async+0x101/0x19d
[   25.271773]  [<c1036b2e>] async_run_entry_fn+0x89/0x127
[   25.271773]  [<c1036b2e>] async_run_entry_fn+0x89/0x127
[   25.271773]  [<c102d0ac>] process_one_work+0x1d1/0x374
[   25.271773]  [<c102d0ac>] process_one_work+0x1d1/0x374
[   25.271773]  [<c10488d8>] ? trace_hardirqs_off+0xb/0xd
[   25.271773]  [<c10488d8>] ? trace_hardirqs_off+0xb/0xd
[   25.271773]  [<c1036aa5>] ? __lowest_in_progress+0x3d/0x3d
[   25.271773]  [<c1036aa5>] ? __lowest_in_progress+0x3d/0x3d
[   25.271773]  [<c102d72a>] worker_thread+0xde/0x170
[   25.271773]  [<c102d72a>] worker_thread+0xde/0x170
[   25.271773]  [<c103aa81>] ? complete+0x34/0x3e
[   25.271773]  [<c103aa81>] ? complete+0x34/0x3e
[   25.271773]  [<c102d64c>] ? manage_workers+0x1da/0x1da
[   25.271773]  [<c102d64c>] ? manage_workers+0x1da/0x1da
[   25.271773]  [<c103128a>] kthread+0x87/0x8c
[   25.271773]  [<c103128a>] kthread+0x87/0x8c
[   25.271773]  [<c1a61cb7>] ret_from_kernel_thread+0x1b/0x28
[   25.271773]  [<c1a61cb7>] ret_from_kernel_thread+0x1b/0x28
[   25.271773]  [<c1031203>] ? freezing+0x19/0x19
[   25.271773]  [<c1031203>] ? freezing+0x19/0x19
[   25.271773] Code:[   25.271773] Code: 18 18 8b 8b 88 88 04 04 03 03 00 00 00 00 89 89 f0 f0 8b 8b 91 91 e4 e4 03 03 00 00 00 00 89 89 55 55 e8 e8 89 89 fa fa 85 85 d2 d2 89 89 d7 d7 89 89 c6 c6 74 74 09 09 89 89 d0 d0 31 31 d2 d2 f7 f7 75 75 e8 e8 89 89 d7 d7 89 89 f0 f0 89 89 fa fa 31 31 ff ff <f7> <f7> 75 75 e8 e8 89 89 d6 d6 31 31 d2 d2 83 83 b9 b9 dc dc 03 03 00 00 00 00 00 00 74 74 37 37 8b 8b 45 45 e8 e8 03 03 81 81
[   25.271773] EIP: [<c13ce50b>] [   25.271773] EIP: [<c13ce50b>] add_partition+0xe0/0x2d6add_partition+0xe0/0x2d6 SS:ESP 0068:f4a4dd4c SS:ESP 0068:f4a4dd4c
[   25.719651] ---[ end trace b47dceb88fdd5835 ]---
[   25.719651] ---[ end trace b47dceb88fdd5835 ]---
[   25.728837] PM: Removing info for isa:3c509.0
[   25.728837] PM: Removing info for isa:3c509.0
[   25.737515] Kernel panic - not syncing: Fatal exception
[   25.737515] Kernel panic - not syncing: Fatal exception

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