linux-kernel - Re: linux-2.6.20-rc4-mm1 Reiser4 filesystem freeze and corruption

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Date:	Thu, 01 Feb 2007 17:21:30 -0700
From:	Zan Lynx <zlynx@....org>
To:	Edward Shishkin <edward@...esys.com>
Cc:	Andrew Morton <akpm@...l.org>,
	"Vladimir V. Saveliev" <vs@...esys.com>, reiserfs-list@...esys.com,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Reiserfs-dev <reiserfs-dev@...esys.com>
Subject: Re: linux-2.6.20-rc4-mm1 Reiser4 filesystem freeze and corruption

On Thu, 2007-02-01 at 18:54 +0300, Edward Shishkin wrote:
[snip]
> Thanks for the dump.
> 
> >[ 3138.456588]  [<ffffffff8033f5de>] current_atom_finish_all_fq+0x12e/0x280
> >[ 3138.456661]  [<ffffffff80296510>] autoremove_wake_function+0x0/0x30
> >[ 3138.456674]  [<ffffffff803350ac>] submit_wb_list+0x11c/0x130
> >[ 3138.456690]  [<ffffffff80335409>] reiser4_txn_end+0x349/0x530
> >[ 3138.456710]  [<ffffffff803355f9>] reiser4_txn_restart+0x9/0x20
> >[ 3138.456781]  [<ffffffff80335680>] force_commit_atom+0x50/0x60
> >[ 3138.456793]  [<ffffffff8034cfb1>] writepages_unix_file+0x671/0x780
> >[ 3138.456824]  [<ffffffff802590b3>] do_writepages+0x43/0x80
> >[ 3138.456838]  [<ffffffff8024dbf8>] __filemap_fdatawrite_range+0x58/0x70
> >[ 3138.456914]  [<ffffffff8024e19d>] do_fsync+0x3d/0xe0
> >[ 3138.456930]  [<ffffffff802c2473>] sys_msync+0x143/0x1f0
> >[ 3138.456945]  [<ffffffff8025c11e>] system_call+0x7e/0x83
> >  
> >
> 
> This is waiting for IO completion, and no success because of new plugging
> policy introduced by block layer folks. The attached patch should help.
> Andrew, please apply.

OK, I have been using it with your patch for many hours and it has not
frozen up yet.  I believe that the patch did indeed fix it.

Thank you.
-- 
Zan Lynx <zlynx@....org>

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