Kevin, I created a new bugzilla entry (https://bugzilla.redhat.com/show_bug.cgi?id=455696) to track the problem. Mark On Wednesday 16 July 2008 20:56:19 Kevin Anderson wrote: > Mark, > > Looks very similar to a bug that has been recently reported. > Unfortunately the bug has a number of internal view only flags, so can't > enable it for external access. Your report is the first one to mention > NFS. Is it possible to get your test cases? > > Thanks > Kevin > > On Wed, 2008-07-16 at 20:46 +0200, Mark Hlawatschek wrote: > > Hi, > > > > During some stress tests with NFS over GFS, I observed a strange problem. > > > > The test setup consists of two GFS cluster nodes (node1, node2) > > (RHEL4.6), both serving the same NFS exports (/mnt/gfstest) > > The NFS exports are mounted by two NFS clients (client1, client2), > > whereas client1 has mounted the NFS export from node1 and client2 has > > mounted the NFS export from node2. > > > > During the stress test, client1 creates files into dir1 on the GFS and > > client2 created files into dir2 on the same GFS. Node1 continuously reads > > the files created by client1 and client2. After some time (about 10 > > minutes) the following error occurs on node1: > > > > GFS: fsid=axqa01:gfstest.0: fatal: assertion "!bd->bd_pinned > > && !buffer_busy(bh)" failed > > GFS: fsid=axqa01:gfstest.0: function = ail_empty_gl > > GFS: fsid=axqa01:gfstest.0: file > > = /builddir/build/BUILD/gfs-kernel-2.6.9-75/smp/src/gfs/dio.c, line = 383 > > GFS: fsid=axqa01:gfstest.0: time = 1216216523 > > GFS: fsid=axqa01:gfstest.0: about to withdraw from the cluster > > GFS: fsid=axqa01:gfstest.0: waiting for outstanding I/O > > GFS: fsid=axqa01:gfstest.0: telling LM to withdraw > > lock_dlm: withdraw abandoned memory > > GFS: fsid=axqa01:gfstest.0: withdrawn > > > > Is there a workaround for this problem ? Is this a bug ? > > > > Thanks, > > > > Mark > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Gruss / Regards, Dipl.-Ing. Mark Hlawatschek http://www.atix.de/ http://www.open-sharedroot.org/ ** ATIX Informationstechnologie und Consulting AG Einsteinstr. 10 85716 Unterschleissheim Deutschland/Germany -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
