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I/O GFS: fsid=axqa01:gfstest.0: telling LM to withdraw lock_dlm: withdraw abandoned memory GFS: fsid=axqa01:gfstest.0: withdrawn Is there a workaround for this problem ?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 -- 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
