server kernel: GFS2: fsid=: Trying to join cluster "lock_dlm", "dps:sb01vg01lv02"
server kernel: GFS2: fsid=dps:sb01vg01lv02.1: Joined cluster. Now mounting FS...
server kernel: GFS2: fsid=dps:sb01vg01lv02.1: jid=1, already locked for use
server kernel: GFS2: fsid=dps:sb01vg01lv02.1: jid=1: Looking at journal...
server kernel: GFS2: fsid=dps:sb01vg01lv02.1: jid=1: Done
[...other non cluster/gfs related stuff removed...]]
server kernel: GFS2: fsid=dps:sb01vg01lv01.0: fatal: filesystem consistency error
server kernel: GFS2: fsid=dps:sb01vg01lv01.0:   RG = 9635245
server kernel: GFS2: fsid=dps:sb01vg01lv01.0:   function = gfs2_free_uninit_di, file = fs/gfs2/rgrp.c, line = 1653
server kernel: GFS2: fsid=dps:sb01vg01lv01.0: about to withdraw this file system
server kernel: GFS2: fsid=dps:sb01vg01lv01.0: telling LM to withdraw
server qdiskd[10309]: <warning> qdisk cycle took more than 1 second to complete (13.760000) 
server kernel: dlm: sb01vg01lv01: group leave failed -512 0
server dlm_controld[10331]: open "/sys/kernel/dlm/sb01vg01lv01/event_done" error -1 2
server kernel: GFS2: fsid=dps:sb01vg01lv01.0: withdrawn
server kernel: 
server kernel: Call Trace:
server kernel:  [<ffffffff885e252a>] :gfs2:gfs2_lm_withdraw+0xc1/0xd0
server kernel:  [<ffffffff8002ce63>] wake_up_bit+0x11/0x22
server kernel:  [<ffffffff800646f6>] __down_read+0x12/0x92
server kernel:  [<ffffffff885de02c>] :gfs2:do_promote+0x108/0x137
server kernel:  [<ffffffff80063bb7>] mutex_lock+0xd/0x1d
server kernel:  [<ffffffff885e51a3>] :gfs2:buf_lo_add+0x71/0x106
server kernel:  [<ffffffff885f56bf>] :gfs2:gfs2_consist_rgrpd_i+0x34/0x39
server kernel:  [<ffffffff885f2368>] :gfs2:gfs2_free_di+0x7c/0xef
server kernel:  [<ffffffff885e1549>] :gfs2:gfs2_dinode_dealloc+0x141/0x1a7
server kernel:  [<ffffffff885edd7b>] :gfs2:gfs2_delete_inode+0xeb/0x191
server kernel:  [<ffffffff885edcd6>] :gfs2:gfs2_delete_inode+0x46/0x191
server kernel:  [<ffffffff885edc90>] :gfs2:gfs2_delete_inode+0x0/0x191
server kernel:  [<ffffffff8002f191>] generic_delete_inode+0xc6/0x143
server kernel:  [<ffffffff885f2c88>] :gfs2:gfs2_inplace_reserve_i+0x63b/0x691
server kernel:  [<ffffffff885de019>] :gfs2:do_promote+0xf5/0x137
server kernel:  [<ffffffff885e740d>] :gfs2:gfs2_write_begin+0x116/0x33f
server kernel:  [<ffffffff885e8e8f>] :gfs2:gfs2_file_buffered_write+0x14b/0x2e5
server kernel:  [<ffffffff8000cdf5>] file_read_actor+0x0/0x154
server kernel:  [<ffffffff885e92c5>] :gfs2:__gfs2_file_aio_write_nolock+0x29c/0x2d4
server kernel:  [<ffffffff885e9468>] :gfs2:gfs2_file_write_nolock+0xaa/0x10f
server kernel:  [<ffffffff800c3206>] generic_file_read+0xac/0xc5
server kernel:  [<ffffffff8009dbae>] autoremove_wake_function+0x0/0x2e
server kernel:  [<ffffffff8009dbae>] autoremove_wake_function+0x0/0x2e
server kernel:  [<ffffffff885e95b8>] :gfs2:gfs2_file_write+0x49/0xa7
server kernel:  [<ffffffff80016591>] vfs_write+0xce/0x174
server kernel:  [<ffffffff80016e5e>] sys_write+0x45/0x6e
server kernel:  [<ffffffff8005d28d>] tracesys+0xd5/0xe0
server kernel: 
server kernel: GFS2: fsid=dps:sb01vg01lv01.0: gfs2_delete_inode: -5
[...then no logs for more than two hours until i started diagnosing the issue...]