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> Stefan Bethke wrote on Wed, Jan 11, 2012 at 07:14:44PM +0100:
> > Am 11.01.2012 um 17:57 schrieb Martin Cracauer:
> >
> > > I'm sorry for the unspecific bug report but I thought a heads-up is
> > > better than none.
> > >
> > > $ uname -a
> > > FreeBSD wings.cons.org 10.0-CURRENT FreeBSD 10.0-CURRENT #2: Wed Dec
> > > 28 12:19:21 EST 2011
> > > craca...@wings.cons.org:/usr/src/sys/amd64/compile/WINGS amd64
> >
> > I'm sure Rick will want to know which NFS version, which client code
> > (default new code I'm assuming) and which mount options...
>
> It's all default both in fstab and as reported by mount(8).
>
> This is a diskless PXE boot but the mount affected (usr) is not the
> root filesystem, so this should come in via fstab.
>
> BTW, my /usr/ports is another mount so the corruption is cross-mount
> (garbage from /usr/ports entering /usr).
>
> Appending nfsstat output.
>
> I am re-running things contiguously to see how reproducible this is.
> This machine was recently updated from a -current almost a year old,
> so it's its first time with the new NFS client code.
>
> Martin
I've seen problems, but they were always related to programs running out of
resources and not reporting it correctly - in dataless specialy if running
out of memory and there is no swap available.
btw, most of my servers are dataless (they boot via PXE but have local
swap, var, etc)
hth,
danny
>
> > > I see filesystem corruption on NFS filesystems here. I am running a
> > > heavy shellscript that is noodling around with ascii files assembling
> > > them with awk and whatnot. Some actions are concurrent with up to 21
> > > forks doing full-CPU load scripting. This machine is a K8 with a
> > > total of 8 cores, diskless NFS and memory filesystem for /tmp.
> > >
> > > I observe two problems:
> > > - for no reason whatsoever, some files change from my
> > > (user/group) cracauer/wheel to root/cracauer
> > > - the same files will later be corrupted. The beginning of the file
> > > is normal but then it has what looks like parts of /usr/ports,
> > > including our CVS files and binary junk, mostly zeros
> > >
> > > I did do some ports building lately but not at the same time that this
> > > problem manifested itself. I speculate some ports blocks were still
> > > resident in the filesystem buffer cache.
> > >
> > > Server is Linux.
> > >
> > > Martin
> > > --
> > > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > > Martin Cracauer <craca...@cons.org> http://www.cons.org/cracauer/
> > > _______________________________________________
> > > freebsd-current@freebsd.org mailing list
> > > http://lists.freebsd.org/mailman/listinfo/freebsd-current
> > > To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
> >
> > --
> > Stefan Bethke <s...@lassitu.de> Fon +49 151 14070811
> >
> >
> >
>
> --
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> Martin Cracauer <craca...@cons.org> http://www.cons.org/cracauer/
>
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> Client Info:
> Rpc Counts:
> Getattr Setattr Lookup Readlink Read Write Create
> Remove
> 94392942 513117 3637266 2577 40227237 2824593 333832
> 304567
> Rename Link Symlink Mkdir Rmdir Readdir RdirPlus
> Access
> 32522 5121 4856 20363 13954 179035 0
> 3534382
> Mknod Fsstat Fsinfo PathConf Commit
> 5 21127240 3 2999 521782
> Rpc Info:
> TimedOut Invalid X Replies Retries Requests
> 0 0 0 0 167678419
> Cache Info:
> Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits
> Misses
> 1933340911 73265447 1123380719 3636242 90975094 450509 4917135
> 2824593
> BioRLHits Misses BioD Hits Misses DirE Hits Misses Accs Hits
> Misses
> 54732346 2577 599049 142917 352394 0 733726346
> 3534382
>
> Server Info:
> Getattr Setattr Lookup Readlink Read Write Create
> Remove
> 0 0 0 0 0 0 0 > 0
> Rename Link Symlink Mkdir Rmdir Readdir RdirPlus
> Access
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> Mknod Fsstat Fsinfo PathConf Commit
> 0 0 0 0 0
> Server Ret-Failed
> 0
> Server Faults
> 0
> Server Cache Stats:
> Inprog Idem Non-idem Misses
> 0 0 0 0
> Server Write Gathering:
> WriteOps WriteRPC Opsaved
> 0 0 0
>
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