* Re: [xfs-masters] filesystem corruption on xfs after 2.6.25-rc1 (bisected, powerpc related?) [not found] <20080225112310.GA5516@soziologie.ch> @ 2008-02-25 18:15 ` Eric Sandeen [not found] ` <200802260052.57875.rjw@sisk.pl> 1 sibling, 0 replies; 2+ messages in thread From: Eric Sandeen @ 2008-02-25 18:15 UTC (permalink / raw) To: xfs-masters; +Cc: xfs, johannes, linux-kernel Mailing List Gaudenz Steinlin wrote: > Hi > > Since upgrading to 2.6.25-rc1 I see filesystem corruption on my XFS > filesystem. I can reproduce this by doing "git reset --hard v2.6.25-rc1" > on a git checkout which is on some other revision. Git outputs strange > error messages (like file xxx is a directory when xxx really is a file) > and sometimes the filesystem "hangs" (I can no longer do any operations > on it even from another shell). If I reboot with a working kernel and > check the filesystem xfs_check reports many errors. I also see the > problem when doing other (not related to git) operations on the > filesystem. Git reset is just the easiest way to reproduce it. > > I was able to track this corruption down to commit > a69b176df246d59626e6a9c640b44c0921fa4566 ([XFS] Use the generic bitops > rather than implementing them ourselves.) using git bisect. > > Reverting edd319dc527733e61eec5bdc9ce20c94634b6482 ([XFS] Fix > xfs_lowbit64) to avoid merge conflicts and the faulty commit on top of > 2.6.25-rc3 fixes the problem. If you're feeling motivated, maybe you can narrow it down to which of the changes - xfs_highbit32, xfs_highbit64, xfs_lowbit32, or xfs_lowbit64 - is causing the problem? (or maybe they all are ...) Or maybe someone looking at the commit can immediately see the problem... but I can't :) -Eric ^ permalink raw reply [flat|nested] 2+ messages in thread
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* Re: [xfs-masters] Re: filesystem corruption on xfs after 2.6.25-rc1 (bisected, powerpc related?) [not found] ` <1204049492.13162.265.camel@johannes.berg> @ 2008-02-28 14:40 ` Eric Sandeen 0 siblings, 0 replies; 2+ messages in thread From: Eric Sandeen @ 2008-02-28 14:40 UTC (permalink / raw) To: Johannes Berg Cc: Gaudenz Steinlin, Rafael J. Wysocki, Christoph Hellwig, xfs-masters, xfs, linux-kernel Mailing List, Andi Kleen Johannes Berg wrote: >> I debuged this a bit further by testing the 4 changed functions >> individually. The problem only occurs with the new version of >> xfs_lowbit64. ... > You really need to keep xfs_lowbit64 defined as it was before, or, maybe > even better, define ffs64 in parallel to fls64. Yep, I agree. -Eric ^ permalink raw reply [flat|nested] 2+ messages in thread
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2008-02-25 18:15 ` [xfs-masters] filesystem corruption on xfs after 2.6.25-rc1 (bisected, powerpc related?) Eric Sandeen
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2008-02-28 14:40 ` [xfs-masters] " Eric Sandeen
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