linux-ext4 - [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch

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Message-ID: <BLU157-W25EB1EAC24CC11FA14859ADAF20@phx.gbl>
Date:	Sun, 25 Sep 2011 16:45:39 +0800
From:	MaoXiaoyun <tinnycloud@...mail.com>
To:	<linux-ext4@...r.kernel.org>
CC:	<konrad.wilk@...cle.com>,
	xen devel <xen-devel@...ts.xensource.com>, <tytso@....edu>,
	<jack@...e.cz>
Subject: [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch

Hi:

   We met an ext4 BUG_ON in extents.c:1716 which crash kernel flush thread, and result in disk unvailiable.

   BUG details refer to: http://www.gossamer-threads.com/lists/xen/devel/217091?do=post_view_threaded

   Attached is the fix, verified in our env. 

   Without this patch, more than 3 servers hit BUG_ON in our hundreds of servers every day.

   many thanks. 		 	   		  
Download attachment "0001-ext4-fix_dirty_extent_when_split_max&last_extent.patch" of type "application/octet-stream" (3476 bytes)