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Message-ID: <428A68BC.1020303@namesys.com>
Date: Tue, 17 May 2005 14:57:16 -0700
From: Hans Reiser <reiser@namesys.com>
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To: "Berck E. Nash" <flyboy@gmail.com>
CC: linux-kernel@vger.kernel.org, vs <vs@thebsh.namesys.com>
Subject: Re: Scheduling while atomic lockups, Reiser4, DAC960
References: <428A40EC.8050206@gmail.com>
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vs will look at it.

Hans

Berck E. Nash wrote:

>Linux luna 2.6.12-rc4-mm1 i686
>Debian unstable, AMD Athlon
>
>The error seems to occur with my reiser4 partition.   The physical
>device is  an 8-disk RAID-0 array on a Mylex Extreme RAID 1100 using the
>DAC960 driver.  The error is sometimes followed by a lockup, but not always.
>
>Not sure if it's a hardware problem or kernel problem.
>
>There's pages and pages of errors that look like this.  If there's
>anything I can do to provide more information, I will gladly do so.
>
>Just a user, not a hacker.  I'm not subscribed to the list, so cc's on
>reply would be appreciated.
>
>Thanks,
>Berck
>
> scheduling while atomic: pdflush/0xffffffff/92
>May 16 03:36:43 luna kernel:  [<c02f6ac4>] schedule+0x604/0x610
>May 16 03:36:43 luna kernel:  [<c02f6265>] __down+0x85/0x120
>May 16 03:36:43 luna kernel:  [<c0115020>] default_wake_function+0x0/0x10
>May 16 03:36:43 luna kernel:  [<c02f645f>] __down_failed+0x7/0xc
>May 16 03:36:43 luna kernel:  [<c024b420>] blk_backing_dev_unplug+0x0/0x10
>May 16 03:36:43 luna kernel:  [<c01c5ca3>] .text.lock.flush_queue+0x8/0x25
>May 16 03:36:43 luna kernel:  [<c01c5524>] finish_fq+0x14/0x40
>May 16 03:36:43 luna kernel:  [<c01c55ae>] finish_all_fq+0x5e/0xa0
>May 16 03:36:43 luna kernel:  [<c01c560e>]
>current_atom_finish_all_fq+0x1e/0x70
>May 16 03:36:43 luna kernel:  [<c01c167c>] reiser4_write_logs+0x20c/0x2b0
>May 16 03:36:43 luna kernel:  [<c01ba599>] commit_current_atom+0x109/0x1e0
>May 16 03:36:43 luna kernel:  [<c01c5957>] release_prepped_list+0xf7/0x130
>May 16 03:36:43 luna kernel:  [<c01bae23>] try_commit_txnh+0x113/0x190
>May 16 03:36:43 luna kernel:  [<c01baec8>] commit_txnh+0x28/0xa0
>May 16 03:36:43 luna kernel:  [<c01b9d7c>] txn_end+0x2c/0x30
>May 16 03:36:43 luna kernel:  [<c01bab2b>] flush_some_atom+0x1fb/0x290
>May 16 03:36:43 luna kernel:  [<c01c9368>] writeout+0x68/0xb0
>May 16 03:36:43 luna kernel:  [<c01c940b>] reiser4_sync_inodes+0x5b/0xa0
>May 16 03:36:43 luna kernel:  [<c01c93b0>] reiser4_sync_inodes+0x0/0xa0
>May 16 03:36:43 luna kernel:  [<c0174a59>] sync_sb_inodes+0x19/0x20
>May 16 03:36:43 luna kernel:  [<c0174b1e>] writeback_inodes+0xbe/0xd0
>May 16 03:36:43 luna kernel:  [<c013be15>] background_writeout+0x65/0xa0
>May 16 03:36:43 luna kernel:  [<c013c748>] __pdflush+0xc8/0x1c0
>May 16 03:36:43 luna kernel:  [<c013c840>] pdflush+0x0/0x20
>May 16 03:36:43 luna kernel:  [<c013c85a>] pdflush+0x1a/0x20
>May 16 03:36:43 luna kernel:  [<c013bdb0>] background_writeout+0x0/0xa0
>May 16 03:36:43 luna kernel:  [<c013c840>] pdflush+0x0/0x20
>May 16 03:36:43 luna kernel:  [<c012bb44>] kthread+0x94/0xa0
>May 16 03:36:43 luna kernel:  [<c012bab0>] kthread+0x0/0xa0
>May 16 03:36:43 luna kernel:  [<c0100f1d>] kernel_thread_helper+0x5/0x18
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