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Description of problem:
When running xfs_repair with the ag_stride option to attempt to speed up the repair, part way through Phase 2, we receive a segfault.
Version-Release number of selected component (if applicable):
[root@zeus ~]# rpm -qa | grep xfs
xfsprogs-3.1.1-7.el6.x86_64
[root@zeus ~]#
Steps to Reproduce:
[root@zeus ~]# xfs_repair -o bhash=16384 -o ihash=16384 -o ag_stride=16 -t 60 /dev/xvdb
Phase 1 - find and verify superblock...
- reporting progress in intervals of 1 minute
Phase 2 - using internal log
- zero log...
XFS: totally zeroed log
Segmentation fault
[root@zeus ~]#
Additional info:
The latest version of xfsprogs (3.1.8) are known to fix this problem.
See:
http://comments.gmane.org/gmane.comp.file-systems.xfs.general/43191http://blog.jcuff.net/2012/04/turn-xfsrepair-up-to-eleven-with.html
Updating xfsprogs would probably fix a whole lot of issues, as well as increase performance of actual repairs.
commit 356357a446424c54851608bb7cebce6cead14590
Author: Christoph Hellwig <hch>
Date: Fri Mar 2 08:35:08 2012 +0000
repair: fix incorrect use of thread local data in dir and attr code
The attribute and dirv1 code use pthread thread local data incorrectly in
a few places, which will make them fail in horrible ways when using the
ag_stride options.
Replace the use of thread local data with simple local allocations given
that there is no needed to micro-optimize these allocations as much
as e.g. the extent map. The added benefit is that we have to allocate
less memory, and can free it quickly.
Reviewed-by: Dave Chinner <dchinner>
Reported-by: Tom Crane <T.Crane.uk>
Tested-by: Tom Crane <T.Crane.uk>
Signed-off-by: Christoph Hellwig <hch>
Comment 3RHEL Program Management
2013-01-14 06:48:22 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
http://rhn.redhat.com/errata/RHBA-2013-1657.html
Description of problem: When running xfs_repair with the ag_stride option to attempt to speed up the repair, part way through Phase 2, we receive a segfault. Version-Release number of selected component (if applicable): [root@zeus ~]# rpm -qa | grep xfs xfsprogs-3.1.1-7.el6.x86_64 [root@zeus ~]# Steps to Reproduce: [root@zeus ~]# xfs_repair -o bhash=16384 -o ihash=16384 -o ag_stride=16 -t 60 /dev/xvdb Phase 1 - find and verify superblock... - reporting progress in intervals of 1 minute Phase 2 - using internal log - zero log... XFS: totally zeroed log Segmentation fault [root@zeus ~]# Additional info: The latest version of xfsprogs (3.1.8) are known to fix this problem. See: http://comments.gmane.org/gmane.comp.file-systems.xfs.general/43191 http://blog.jcuff.net/2012/04/turn-xfsrepair-up-to-eleven-with.html Updating xfsprogs would probably fix a whole lot of issues, as well as increase performance of actual repairs.