http://bugzilla.suse.com/show_bug.cgi?id=921494 --- Comment #1 from Gang He <ghe@suse.com> --- some installation information/package, please refer to Bug 921449. command line: ./single_run-WIP.sh -k /data/linux-kernel.tar.gz -m /mnt/shared/ -l /opt/ocfs2-test/log -d /dev/mapper/cluster--vg1-big--lv -s pcmk -n hacluster pstack information when this both processes are hanged: root 14516 0.0 0.0 0 0 ? S 15:45 0:00 [kworker/0:1] root 14670 0.0 0.4 45588 8464 pts/2 S+ 15:49 0:01 vi single_run-WIP.sh root 15245 0.0 0.0 0 0 ? D 15:59 0:00 [jbd2/dm-3-523] root 15248 1.6 0.0 14476 1500 pts/1 D+ 15:59 0:09 mmap_truncate -c 20 -s 300 /mnt/shared//mmaptruncate.txt root 15249 1.9 0.0 14476 396 pts/1 D+ 15:59 0:11 mmap_truncate -c 20 -s 300 /mnt/shared//mmaptruncate.txt root 15272 0.0 0.0 0 0 ? S 16:00 0:00 [kworker/u4:3] root 15274 0.0 0.0 0 0 ? S 16:00 0:00 [kworker/1:2] root 15302 0.0 0.0 0 0 ? S 16:01 0:00 [kworker/1:3] root 15439 0.0 0.0 0 0 ? S 16:06 0:00 [kworker/1:0] root 15551 0.0 0.1 23212 2748 pts/3 R+ 16:09 0:00 ps aux open-nd1:/opt/ocfs2-test/log/2015-03-10_15:34 # cat /proc/15248/stack [<ffffffff81149fda>] sleep_on_page+0xa/0x10 [<ffffffff8114a0da>] __lock_page+0x6a/0x70 [<ffffffffa05e1198>] ocfs2_write_begin_nolock+0x1688/0x1fa0 [ocfs2] [<ffffffffa0613275>] ocfs2_page_mkwrite+0x1f5/0x310 [ocfs2] [<ffffffff81171b9e>] do_page_mkwrite+0x3e/0x80 [<ffffffff81174cd5>] do_shared_fault.isra.54+0x65/0x1d0 [<ffffffff81175e34>] handle_mm_fault+0x484/0x1170 [<ffffffff81048ce8>] __do_page_fault+0x158/0x530 [<ffffffff81623808>] async_page_fault+0x28/0x30 [<0000000000400eaa>] 0x400eaa [<ffffffffffffffff>] 0xffffffffffffffff open-nd1:/opt/ocfs2-test/log/2015-03-10_15:34 # cat /proc/15249/stack [<ffffffff81323543>] call_rwsem_down_write_failed+0x13/0x20 [<ffffffffa05fb7f7>] ocfs2_truncate_file+0x117/0xa80 [ocfs2] [<ffffffffa060171d>] ocfs2_setattr+0x52d/0xe20 [ocfs2] [<ffffffff811d2d11>] notify_change+0x241/0x390 [<ffffffff811b55f5>] do_truncate+0x65/0x90 [<ffffffff811b594b>] do_sys_ftruncate.constprop.10+0x10b/0x160 [<ffffffff8162182d>] system_call_fastpath+0x1a/0x1f [<00007f2ecab95207>] 0x7f2ecab95207 [<ffffffffffffffff>] 0xffffffffffffffff -- You are receiving this mail because: You are on the CC list for the bug.