linux-ext4 - uninit_bg compatibility?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <Pine.A41.4.64.1009211500110.1245260@stalin.acc.umu.se>
Date:	Tue, 21 Sep 2010 15:28:51 +0200 (CEST)
From:	Bo Brantén <bosse@....umu.se>
To:	linux-ext4@...r.kernel.org
Subject: uninit_bg compatibility?


Hello,

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.
--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html