hi,

i'm using SL6, with latest updates ...
i have one two node cluster (with drbd, cman , ...),  when i'm trying to
mount gfs2 volume on second node (at first node all is ok) (drdb is primary
at both) some kernel panics occured ...

Jul 17 19:09:34 sl6-2 kernel: INFO: task gfs2_quotad:2799 blocked for more
than 120 seconds.
Jul 17 19:09:34 sl6-2 kernel: "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Jul 17 19:09:34 sl6-2 kernel: gfs2_quotad   D 0000000000000000     0  2799 
    2 0x00000080
Jul 17 19:09:34 sl6-2 kernel: ffff88001d2e3a88 0000000000000046
0000000000000286 ffff88001d2e3a50
Jul 17 19:09:34 sl6-2 kernel: ffffffff8105d8ea ffff88001d2e3a40
ffffffff00000000 00000001017bfc6d
Jul 17 19:09:34 sl6-2 kernel: ffff880006f9daf8 ffff88001d2e3fd8
000000000000f598 ffff880006f9daf8
Jul 17 19:09:34 sl6-2 kernel: Call Trace:
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8105d8ea>] ? try_to_wake_up+0xca/0x400
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff810370f8>] ?
pvclock_clocksource_read+0x58/0xd0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8104fc08>] ? update_curr+0xf8/0x1e0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff814dd045>]
rwsem_down_failed_common+0x95/0x1d0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8105055a>] ? enqueue_entity+0x13a/0x340
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff814dd1d6>]
rwsem_down_read_failed+0x26/0x30
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8126e494>]
call_rwsem_down_read_failed+0x14/0x30
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff814dc6d4>] ? down_read+0x24/0x30
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa04d13f2>] dlm_lock+0x62/0x1e0 [dlm]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff81055cf3>] ?
perf_event_task_sched_out+0x33/0x80
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8105fe81>] ? dequeue_entity+0x1a1/0x1e0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa05224b2>] gdlm_lock+0xe2/0x120 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa05225b0>] ? gdlm_ast+0x0/0xd0 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa05224f0>] ? gdlm_bast+0x0/0x50 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa0505b9e>] do_xmote+0x16e/0x250 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa0505d72>] run_queue+0xf2/0x170 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa0505ff8>] gfs2_glock_nq+0x178/0x370
[gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8107a11b>] ?
try_to_del_timer_sync+0x7b/0xe0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa051f868>]
gfs2_statfs_sync+0x58/0x1b0 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff814db8da>] ?
schedule_timeout+0x19a/0x2e0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa051f860>] ?
gfs2_statfs_sync+0x50/0x1b0 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa05177f7>]
quotad_check_timeo+0x57/0xb0 [gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa0517a84>] gfs2_quotad+0x234/0x2b0
[gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8108e100>] ?
autoremove_wake_function+0x0/0x40
Jul 17 19:09:34 sl6-2 kernel: [<ffffffffa0517850>] ? gfs2_quotad+0x0/0x2b0
[gfs2]
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8108dd96>] kthread+0x96/0xa0
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8100c1ca>] child_rip+0xa/0x20
Jul 17 19:09:34 sl6-2 kernel: [<ffffffff8108dd00>] ? kthread+0x0/0xa0

it's about quota, but what is it?

Some info may be useful:

$ uname -a
Linux sl6-2 2.6.32-131.6.1.el6.x86_64 #1 SMP Tue Jul 12 17:14:50 CDT 2011
x86_64 x86_64 x86_64 GNU/Linux

# Mount Command
$ mount /dev/drbd0 /gfs -o noatime,noquota

# Packages
gfs2-utils-3.0.12-23.el6.x86_64
cman-3.0.12-23.el6.x86_64

Also in SAN environment(shared storage), i test this (mounting GFs2), on
first server all is ok, but on second(..) this error occurred ..

Any idea?

best regards