Hi,
I have a 3-node cluster in testing which seem to work quite well (
cman, rgmanager, gfs2, etc ).
On (only) one of my nodes, yesterday i noticed the message below in
dmesg.
I saw this 30 minutes after the facts. I could browse both my gfs2
mounts, there was no fencing or anything on any node.
Any idea what might have caused this, and then go away?
Aug 19 00:10:01 vm02-test kernel: [282120.240067] INFO: task
kworker/1:0:3117 blocked for more than 120 seconds.
Aug 19 00:10:01 vm02-test kernel: [282120.240182] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 19 00:10:01 vm02-test kernel: [282120.240296] kworker/1:0 D
ffff88032fc93900 0 3117 2 0x00000000
Aug 19 00:10:01 vm02-test kernel: [282120.240302] ffff8802bb4dfb30
0000000000000046 ffff88031e4744d0 ffff8802bb4dffd8
Aug 19 00:10:01 vm02-test kernel: [282120.240307] ffff8802bb4dffd8
ffff8802bb4dffd8 ffff88031e5796f0 ffff88031e4744d0
Aug 19 00:10:01 vm02-test kernel: [282120.240311] 0000000000000286
ffff88032ffbd0f8 ffff8802bb4dfbc8 0000000000000002
Aug 19 00:10:01 vm02-test kernel: [282120.240316] Call Trace:
Aug 19 00:10:01 vm02-test kernel: [282120.240334] [<ffffffffa0570290>]
? gfs2_glock_demote_wait+0x20/0x20 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240340] [<ffffffff81666c89>]
schedule+0x29/0x70
Aug 19 00:10:01 vm02-test kernel: [282120.240349] [<ffffffffa057029e>]
gfs2_glock_holder_wait+0xe/0x20 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240352] [<ffffffff81665400>]
__wait_on_bit+0x60/0x90
Aug 19 00:10:01 vm02-test kernel: [282120.240361] [<ffffffffa0570290>]
? gfs2_glock_demote_wait+0x20/0x20 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240364] [<ffffffff816654ac>]
out_of_line_wait_on_bit+0x7c/0x90
Aug 19 00:10:01 vm02-test kernel: [282120.240369] [<ffffffff81073400>]
? autoremove_wake_function+0x40/0x40
Aug 19 00:10:01 vm02-test kernel: [282120.240378] [<ffffffffa05713a7>]
wait_on_holder+0x47/0x80 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240388] [<ffffffffa05741d8>]
gfs2_glock_nq+0x328/0x450 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240399] [<ffffffffa058a8ca>]
gfs2_check_blk_type+0x4a/0x150 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240410] [<ffffffffa058a8c1>]
? gfs2_check_blk_type+0x41/0x150 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240421] [<ffffffffa058ba0c>]
gfs2_evict_inode+0x2cc/0x360 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240432] [<ffffffffa058b842>]
? gfs2_evict_inode+0x102/0x360 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240437] [<ffffffff811940c2>]
evict+0xb2/0x1b0
Aug 19 00:10:01 vm02-test kernel: [282120.240440] [<ffffffff811942c9>]
iput+0x109/0x210
Aug 19 00:10:01 vm02-test kernel: [282120.240448] [<ffffffffa0572fdc>]
delete_work_func+0x5c/0x90 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240453] [<ffffffff8106d5fa>]
process_one_work+0x12a/0x420
Aug 19 00:10:01 vm02-test kernel: [282120.240462] [<ffffffffa0572f80>]
? gfs2_holder_uninit+0x40/0x40 [gfs2]
Aug 19 00:10:01 vm02-test kernel: [282120.240465] [<ffffffff8106e19e>]
worker_thread+0x12e/0x2f0
Aug 19 00:10:01 vm02-test kernel: [282120.240469] [<ffffffff8106e070>]
? manage_workers.isra.25+0x200/0x200
Aug 19 00:10:01 vm02-test kernel: [282120.240472] [<ffffffff81072e73>]
kthread+0x93/0xa0
Aug 19 00:10:01 vm02-test kernel: [282120.240477] [<ffffffff816710a4>]
kernel_thread_helper+0x4/0x10
Aug 19 00:10:01 vm02-test kernel: [282120.240480] [<ffffffff81072de0>]
? flush_kthread_worker+0x80/0x80
Aug 19 00:10:01 vm02-test kernel: [282120.240484] [<ffffffff816710a0>]
? gs_change+0x13/0x13
Aug 19 00:12:01 vm02-test kernel: [282240.240061] INFO: task
kworker/1:0:3117 blocked for more than 120 seconds.
Aug 19 00:12:01 vm02-test kernel: [282240.240175] "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Aug 19 00:12:01 vm02-test kernel: [282240.240289] kworker/1:0 D
ffff88032fc93900 0 3117 2 0x00000000
Aug 19 00:12:01 vm02-test kernel: [282240.240294] ffff8802bb4dfb30
0000000000000046 ffff88031e4744d0 ffff8802bb4dffd8
Aug 19 00:12:01 vm02-test kernel: [282240.240299] ffff8802bb4dffd8
ffff8802bb4dffd8 ffff88031e5796f0 ffff88031e4744d0
Aug 19 00:12:01 vm02-test kernel: [282240.240304] 0000000000000286
ffff88032ffbd0f8 ffff8802bb4dfbc8 0000000000000002
Aug 19 00:12:01 vm02-test kernel: [282240.240309] Call Trace:
Aug 19 00:12:01 vm02-test kernel: [282240.240326] [<ffffffffa0570290>]
? gfs2_glock_demote_wait+0x20/0x20 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240332] [<ffffffff81666c89>]
schedule+0x29/0x70
Aug 19 00:12:01 vm02-test kernel: [282240.240341] [<ffffffffa057029e>]
gfs2_glock_holder_wait+0xe/0x20 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240345] [<ffffffff81665400>]
__wait_on_bit+0x60/0x90
Aug 19 00:12:01 vm02-test kernel: [282240.240353] [<ffffffffa0570290>]
? gfs2_glock_demote_wait+0x20/0x20 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240357] [<ffffffff816654ac>]
out_of_line_wait_on_bit+0x7c/0x90
Aug 19 00:12:01 vm02-test kernel: [282240.240362] [<ffffffff81073400>]
? autoremove_wake_function+0x40/0x40
Aug 19 00:12:01 vm02-test kernel: [282240.240371] [<ffffffffa05713a7>]
wait_on_holder+0x47/0x80 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240380] [<ffffffffa05741d8>]
gfs2_glock_nq+0x328/0x450 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240391] [<ffffffffa058a8ca>]
gfs2_check_blk_type+0x4a/0x150 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240402] [<ffffffffa058a8c1>]
? gfs2_check_blk_type+0x41/0x150 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240413] [<ffffffffa058ba0c>]
gfs2_evict_inode+0x2cc/0x360 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240424] [<ffffffffa058b842>]
? gfs2_evict_inode+0x102/0x360 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240429] [<ffffffff811940c2>]
evict+0xb2/0x1b0
Aug 19 00:12:01 vm02-test kernel: [282240.240432] [<ffffffff811942c9>]
iput+0x109/0x210
Aug 19 00:12:01 vm02-test kernel: [282240.240440] [<ffffffffa0572fdc>]
delete_work_func+0x5c/0x90 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240445] [<ffffffff8106d5fa>]
process_one_work+0x12a/0x420
Aug 19 00:12:01 vm02-test kernel: [282240.240454] [<ffffffffa0572f80>]
? gfs2_holder_uninit+0x40/0x40 [gfs2]
Aug 19 00:12:01 vm02-test kernel: [282240.240458] [<ffffffff8106e19e>]
worker_thread+0x12e/0x2f0
Aug 19 00:12:01 vm02-test kernel: [282240.240462] [<ffffffff8106e070>]
? manage_workers.isra.25+0x200/0x200
Aug 19 00:12:01 vm02-test kernel: [282240.240465] [<ffffffff81072e73>]
kthread+0x93/0xa0
Aug 19 00:12:01 vm02-test kernel: [282240.240469] [<ffffffff816710a4>]
kernel_thread_helper+0x4/0x10
Aug 19 00:12:01 vm02-test kernel: [282240.240473] [<ffffffff81072de0>]
? flush_kthread_worker+0x80/0x80
Aug 19 00:12:01 vm02-test kernel: [282240.240476] [<ffffffff816710a0>]
? gs_change+0x13/0x13
<snip, goes on for a while>
Kind regards,
Bart
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