Red Hat Bugzilla – Bug 215109
GFS2 is broken in fc6
Last modified: 2007-11-30 17:11:48 EST
Description of problem:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
2.create 3-node cluster
3.share some data on node1 via iscsi
4.connect iscsi devices on node2 and node3 (assume, it is connected as /dev/sdc)
5.create partition on dev/sdc1 via fdisk
6.on node2 or node3 mkfs.gfs2 with -p lock_dlm on this partition
7.mount gfs2 fs on nodes2 and3
8.try simultanious writes (actually tried to copy 200M different files using mc)
from nodes 2 and 3 to the mounted gfs2 fs.
nodes 2 and 3 file I/O completely freezes on gfs2 fs
gfs2 fs operable
Also tried with clvmd and shared lvs. The same behaviour.
clvmd doesn't work _at_all_ on 2798 kernel release.
Update: if device is shared via gnbd, not iscsi, gfs2 works while writing
different files, but deadlocks while trying to write to the same file from
Is it possible to reproduce with gnbd and then use sysrq to get a dump of which
processes are hanging? echo 't' >/proc/sysrq-trigger should do the trick.
If you are still having problems with clvmd and/or iscsi, then please report
them as a separate bug as someone else will look into that.
We've fixed a few bugs since this was reported which probably include the cause
of this bug. As a result and due to the lack of further information, I'm closing
this bug for the time being. If its still a problem, please reopen, or file