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Date:	Sun, 06 Jan 2008 19:30:37 -0600
From:	Jayson King <>
Subject: Re: [Bug 9692] New: journal_data mount option causes filesystem

Andrew Morton wrote:
 >On Sat,  5 Jan 2008 09:52:15 -0800 (PST) wrote:
 >>            Summary: journal_data mount option causes filesystem 
 >>                     with blocksize != 4096
 >>            Product: File System
 >>            Version: 2.5
 >>      KernelVersion:
 >>           Platform: All
 >>         OS/Version: Linux
 >>               Tree: Mainline
 >>             Status: NEW
 >>           Severity: high
 >>           Priority: P1
 >>          Component: ext3
 >>         AssignedTo:
 >>         ReportedBy:

This looks to be an off-by-one bug with e2fsck in the function
check_blocks(), and there isn't any actual filesystem corruption
(e2fsck causes the corruption).

Please see the attached patch, which fixes the problem for me.

Jayson King

View attachment "0001-e2fsck-Fix-off-by-one-error-in-check_blocks.patch" of type "text/plain" (1275 bytes)

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