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Date: Wed, 7 Nov 2007 10:43:50 -0800
From: Andrew Sharp <andy.sharp@onstor.com>
To: "Maxim Kozlovsky" <maxim.kozlovsky@onstor.com>
Subject: Re: kernel crash
Message-ID: <20071107104350.6ba40e8f@ripper.onstor.net>
In-Reply-To: <BB375AF679D4A34E9CA8DFA650E2B04E06793D8C@onstor-exch02.onstor.net>
References: <BB375AF679D4A34E9CA8DFA650E2B04E06793D8C@onstor-exch02.onstor.net>
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Damn, dude, what did you do?

On Wed, 7 Nov 2007 09:37:03 -0800 "Maxim Kozlovsky"
<maxim.kozlovsky@onstor.com> wrote:

> Kernel unaligned instruction access[#1]:
> Cpu 0
> $ 0   : 0000000000000000 0000000010001fe1 a8000000049b62e0
> 000000002b7d2b04
> $ 4   : 000000002aaeb000 0000000000000004 0000000000000000
> 000000000000000f
> $ 8   : ffffffff822d44f0 ffffffff823364e0 0000000000000000
> 0000000000000000
> $12   : 0000000010001fe1 000000001000001e a8000000049c8350
> ffffffff8000003f
> $16   : a80000008d810670 0000000000000000 000000000000000f
> a80000008d2bce20
> $20   : a80000008d2bce20 0000000000000000 ffffffff823364e0
> a80000008cddc3d8
> $24   : 0000000000000001 000000000000524b
> 
> $28   : a80000008cdec000 a80000008cdef580 0000000000000003
> ffffffff8205ba80
> Hi    : 00000000001a6997
> Lo    : 000000000008cddd
> epc   : 000000000000524b 0x524a     Not tainted
> ra    : ffffffff8205ba80 do_page_cache_readahead+0x40/0xa8
> Status: 10001fe3    KX SX UX KERNEL EXL IE 
> Cause : 00808010
> BadVA : 000000000000524b
> PrId  : 00040103
> Modules linked in:
> Process cluster_contrl (pid: 781, threadinfo=a80000008cdec000,
> task=a80000000493b7c8)
> Stack : 0000000000000000 a80000008d810670 0000000000000003
> a80000008d2bce80
>         ffffffff82055ecc a8000000049ae5c0 a80000008d810560
> a80000008cdef610
>         a80000008cdd0ae0 0000000000000000 a80000008cddd9c0
> 000000002b938e34
>         a80000008e98d080 a80000008cddc3d8 0000000000000000
> 00000000000009c0
>         a80000008d810670 ffffffff8206381c 0000000000000002
> ffffffff823305e8
>         000000002b938000 ffffffff82330000 0000000000000000
> 0000000000000000
>         ffffffff8202a39c ffffffff820062b8 000000002b938e34
> a80000008cddc3d8
>         a80000000493b7c8 a80000008e98d080 a80000008cdef770
> 0000000000000000
>         a80000008e98d0e0 0000000000000001 0000000000000000
> ffffffff82011838
>         0003000200000000 0000000000000000 ffffffff822d47c0
> 00000000000200d2
>         ...
> Call Trace:
> [<ffffffff82055ecc>] filemap_nopage+0x144/0x3d0
> [<ffffffff8206381c>] __handle_mm_fault+0x38c/0xcb0
> [<ffffffff8202a39c>] __do_softirq+0x94/0x140
> [<ffffffff820062b8>] timer_interrupt+0x118/0x170
> [<ffffffff82011838>] do_page_fault+0x158/0x3e0
> [<ffffffff820fb988>] nfs_create_request+0x60/0x1d8
> [<ffffffff820fb8c8>] nfs_unlock_request+0x60/0x78
> [<ffffffff82100004>] nfs_writepage_setup+0x12c/0x4f8
> [<ffffffff82001840>] ret_from_exception+0x0/0x20
> [<ffffffff8214d044>] memset_partial+0x20/0x50
> [<ffffffff82224764>] rpc_init_task+0x44/0x1a0
> [<ffffffff822247e0>] rpc_init_task+0xc0/0x1a0
> [<ffffffff820fefec>] nfs_write_rpcsetup+0xe4/0x1c0
> [<ffffffff821010fc>] nfs_flush_one+0xd4/0x148
> [<ffffffff820fb2f0>] nfs_pageio_doio+0x60/0xa0
> [<ffffffff820fb3a0>] nfs_pageio_add_request+0x70/0x178
> [<ffffffff820ff324>] nfs_page_async_flush+0x174/0x198
> [<ffffffff82100458>] nfs_writepage_locked+0x88/0x1a0
> [<ffffffff820556ac>] generic_file_aio_write+0x74/0x138
> [<ffffffff82100588>] nfs_writepage+0x18/0x40
> [<ffffffff820595dc>] __writepage+0x1c/0x90
> [<ffffffff820598d0>] clear_page_dirty_for_io+0x80/0x110
> [<ffffffff82059df8>] write_cache_pages+0x298/0x3d0
> [<ffffffff820595c0>] __writepage+0x0/0x90
> [<ffffffff820ff6c8>] nfs_writepages+0x60/0x90
> [<ffffffff82101028>] nfs_flush_one+0x0/0x148
> [<ffffffff821006f4>] nfs_wb_all+0x6c/0xd8
> [<ffffffff820f5d24>] nfs_file_flush+0x94/0xf0
> [<ffffffff82078068>] filp_close+0x48/0xb0
> [<ffffffff82080180>] do_coredump+0x4d0/0x750
> [<ffffffff8203c648>] autoremove_wake_function+0x0/0x48
> [<ffffffff82032b3c>] get_signal_to_deliver+0x33c/0x450
> [<ffffffff82004758>] do_notify_resume+0x80/0x2d8
> [<ffffffff8207b090>] sys_write+0x50/0x98
> [<ffffffff8200cad4>] sys32_rt_sigprocmask+0xcc/0x1a8
> [<ffffffff820019f8>] work_notifysig+0xc/0x14
