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[Bug 1019792] ocfs2: it looks like a hang (live-lock) when running discontig_runner.sh test case in three nodes
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Fri, 13 Jan 2017 06:23:13 +0000
  • Message-id: <bug-1019792-21960-FHeul6wyWt@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=1019792
http://bugzilla.suse.com/show_bug.cgi?id=1019792#c2

--- Comment #2 from Gang He <ghe@xxxxxxxx> ---
The second node, the back trace of the last child process,
├─sshd─┬─sshd───bash───pstree
│
└─sshd───sshd───bash───orted───fillup_contig_b───mkdir


ocfs2dev2:~ # cat /proc/16772/stack
[<ffffffffc067e252>] __ocfs2_cluster_lock.isra.38+0x1a2/0x6a0 [ocfs2]
[<ffffffffc067f0ef>] ocfs2_inode_lock_full_nested+0x12f/0x850 [ocfs2]
[<ffffffffc06b1511>] ocfs2_reserve_suballoc_bits+0x71/0x410 [ocfs2]
[<ffffffffc06b2075>] ocfs2_reserve_cluster_bitmap_bits+0x35/0x90 [ocfs2]
[<ffffffffc06b218a>] ocfs2_reserve_clusters_with_limit+0xba/0x3c0 [ocfs2]
[<ffffffffc06b0d3b>] ocfs2_block_group_alloc+0x6b/0x7d0 [ocfs2]
[<ffffffffc06b15f6>] ocfs2_reserve_suballoc_bits+0x156/0x410 [ocfs2]
[<ffffffffc06b1def>] ocfs2_reserve_new_inode+0xff/0x350 [ocfs2]
[<ffffffffc0696842>] ocfs2_mknod+0x512/0xfa0 [ocfs2]
[<ffffffffc0697326>] ocfs2_mkdir+0x56/0x130 [ocfs2]
[<ffffffffb523a10f>] vfs_mkdir+0x10f/0x1b0
[<ffffffffb523e4f0>] SyS_mkdir+0xb0/0xf0
[<ffffffffb571937b>] entry_SYSCALL_64_fastpath+0x1e/0xad
[<ffffffffffffffff>] 0xffffffffffffffff

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