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List:       linux-nfs
Subject:    [NFS] NFS Corruption
From:       Chris Penney <cpenney () gmail ! com>
Date:       2005-03-29 21:08:16
Message-ID: 111aefd050329130844a0042e () mail ! gmail ! com
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Where I am we are starting to move to using Linux NFS servers now that
2.6 seems relatively stable (we need >2GB volumes) and I setup a SLES
9 with SP1 on a dual-cpu pentium4 system with 2GB ram and four 1TB san
supplied luns form an LSI array.  I tried various combonations of
jfs/xfs/resiserfs (mainly I was using jfs) with lvm2/md/dm for
building a volume (as well as a plain lun) and no matter what I did I
was getting corruption (I tried smp and up kernels).  Typically it
would show up as a bad md5sum of a ~2.5GB file I was copying from an
NFS client (a SuSE 9.1 system) while a couple of instances of iozone
or dbench were running.  It usually required a fsck to fix and was
fairly easily repeatable.  If I download 2.6.11.5 and apply NFS-ALL
and the latest DM patches everything seems fine.

Is this a known issue that was recently fixed?  The bug was really
easy for me to reproduce.  The main reason I'm asking is because I
really don't like to use a downloaded kernel tree with SLES 9 and I'd
like to know what needs to go in so I can watch for it and switch back
when it goes in.

Thanks,

   Chris


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