linux-ext4 - e2fsck running extremely slowly

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: <51EC6480.6000200@zytor.com>
Date:	Sun, 21 Jul 2013 15:45:20 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	linux-ext4@...r.kernel.org
Subject: e2fsck running extremely slowly

I have a large filesystem (14 TB) which suffered a RAID failure which
seems to have corrupted some inodes.  Unfortunately as a result there
are now a number of inodes with "false extents" which result in a very
large number of multiply claimed blocks.

I have tried to run e2fsck on this filesystem, and it gets as far as
phase 1D, at which point it starts running at a glacial pace.  After 48
hours -- most of it sitting at 100% CPU executing no system calls at all
-- it claims to have processed a single file out of almost 10000.

Anything I can do (to rescue the filesystem or try to debug the problem)
other than "wipe and start over"?

I believe this is e2fsck 1.42.3 from Fedora 17.

	-hpa
--
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