linux-ext4 - Re: two fsck.ext4's needed to clean filesystem

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

Date:	Wed, 22 Jul 2015 11:33:01 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Pavel Machek <pavel@....cz>, tytso@....edu
CC:	jack@...e.com, linux-ext4@...r.kernel.org
Subject: Re: two fsck.ext4's needed to clean filesystem

On 7/22/15 9:21 AM, Pavel Machek wrote:
> Hi!
> 
>> Is that considered ok? Should fsck restart itself or report
>> 'filesystem still has errors' in this case?

It should.

> It definitely should in this case:
> 
> Free inodes count wrong (22999, counted=23011).
> Fix? yes
> 
> 
> delme.fsck.damaged: ***** FILE SYSTEM WAS MODIFIED *****
> delme.fsck.damaged: 2053/25064 files (0.1% non-contiguous),
> 97825/100000 blocks
> Second check...
> e2fsck 1.42.12 (29-Aug-2014)
> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> Block bitmap differences:  +18015
> Fix? yes
> 
> Free blocks count wrong for group #2 (36, counted=35).
> Fix? yes
> 
> Free blocks count wrong (2175, counted=2174).
> Fix? yes
> 
> 
> delme.fsck.damaged: ***** FILE SYSTEM WAS MODIFIED *****
> delme.fsck.damaged: 2053/25064 files (0.2% non-contiguous),
> 97826/100000 blocks
> Fsck lied about its success (result = 1)
> pavel@amd:~/misc$ cp delme.fsck.original-damaged delme.report-2
> 
> (I can make the images public. Yes, it is artificial test.)

Please do - you're right, it should fix it on the first pass.

Thanks,
-Eric

--
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