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[Xen-devel] [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-re

from [MaoXiaoyun] [Permanent Link][Original]
To: <linux-ext4@xxxxxxxxxxxxxxx>
Subject: [Xen-devel] [patch 1/1] ext4-fix-dirty-extent-when-origin-leaf-extent-reac.patch
From: MaoXiaoyun <tinnycloud@xxxxxxxxxxx>
Date: Sun, 25 Sep 2011 16:45:39 +0800
Cc: jack@xxxxxxx, xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, tytso@xxxxxxx, konrad.wilk@xxxxxxxxxx
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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.

Attachment: 0001-ext4-fix_dirty_extent_when_split_max&last_extent.patch
Description: Binary data

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