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Date:	Tue, 21 Sep 2010 15:28:51 +0200 (CEST)
From:	Bo Brantén <>
Subject: uninit_bg compatibility?


when writing new files to an ext4 file system using the Windows driver 
fsck will later complain "Group descriptor nn checksum is invalid" and I 
think that is because it used an yet unused block group without knowing 
that they can be marked as uninitialized. So I thought a simple patch 
would be to mount the file system read-only if that feature is in use 
untill the driver is updated with full write support but I can't find the 
flag to use, there is no EXT4_FEATURE_RO_COMPAT_UNINIT_BG so I thought I 
ask here if anyone could clear this out.
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