Hi, On Thu, 2 Apr 2009, Wendy Cheng wrote: > > If you have any idea what to do next, please write it. > > > Do you have your kernel source somewhere (in tar ball format) so people can > look into it ? I have created the tarballs, you can find them at http://www.kfki.hu/~kadlec/gfs/: - Kernel is vanilla 2.6.27.21, the '.config' file is preserved in the tarball as 'config'. - On top of that I installed vanilla e1000-8.0.6, e1000e-0.5.8.2 and aoe6-69. The same e1000-8.0.6 and e1000e-0.5.8.2 are used with the working cluster-2.01.00 to which the earlier aoe6-59 was added. - The cluster-2.03.11 is also the vanilla version, except that since this thread started I have added two small corrections: - fence/fenced/agent.c fixed, see https://www.redhat.com/archives/linux-cluster/2009-March/msg00222.html - gfs2/mount/umount.gfs2.c, '-l' flag support added, see https://www.redhat.com/archives/cluster-devel/2009-April/msg00000.html The configure options are in 'configure-options', the locally used init scripts can be found under deb/DEBIAN/etc ;-) The GFS volumes are mounted with noatime, quota is enabled (can't leave that off). The volumes are tuned with the values: statfs_slots 128 statfs_fast 1 demote_secs 30 glock_purge 50 scand_secs 3 Those are mostly remnants of the time when Maildir was in use instead of plain mailbox format and we tried to cure the terrible performance. Probably it's worth to note that 'statfs_fast 1' takes a lot of time to complete (usually around 15-20 seconds) which is, at least for me, surprising. I think that's all. Best regards, Jozsef -- E-mail : kadlec@xxxxxxxxxxxx, kadlec@xxxxxxxxxxxxxxxxx PGP key: http://www.kfki.hu/~kadlec/pgp_public_key.txt Address: KFKI Research Institute for Particle and Nuclear Physics H-1525 Budapest 114, POB. 49, Hungary -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster