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<p><font size="+1">Hi Junxiao,</font></p>
<p><font size="+1">As the subject, the testing hung there on a
kernel without your patches:</font></p>
<font size="+1">"ocfs2: revert using ocfs2_acl_chmod to avoid inode
cluster lock hang"</font><br>
<font size="+1">and</font><br>
<font size="+1">"ocfs2: fix posix_acl_create deadlock"<br>
<br>
The stack trace is:<br>
```<br>
ocfs2cts1:~ # pstree -pl 24133<br>
discontig_runne(24133)───activate_discon(21156)───mpirun(15146)─┬─fillup_contig_b(15149)───sudo(15231)───chmod(15232)<br>
<br>
ocfs2cts1:~ # pgrep -a chmod<br>
15232 /bin/chmod -R 777 /mnt/ocfs2<br>
<br>
ocfs2cts1:~ # cat /proc/15232/stack <br>
[<ffffffffa05377ef>]
__ocfs2_cluster_lock.isra.39+0x1bf/0x620 [ocfs2]<br>
[<ffffffffa053856d>]
ocfs2_inode_lock_full_nested+0x12d/0x840 [ocfs2]<br>
[<ffffffffa0538dbb>] ocfs2_inode_lock_atime+0xcb/0x170
[ocfs2]<br>
[<ffffffffa0531e61>] ocfs2_readdir+0x41/0x1b0 [ocfs2]<br>
[<ffffffff8120d03c>] iterate_dir+0x9c/0x110<br>
[<ffffffff8120d453>] SyS_getdents+0x83/0xf0<br>
[<ffffffff815e126e>] entry_SYSCALL_64_fastpath+0x12/0x6d<br>
[<ffffffffffffffff>] 0xffffffffffffffff<br>
```<br>
<br>
Do you think this issue can be fixed by your patches?<br>
<br>
I will try your patches later, but I am little worried the
possibility of reproduction may not be 100%.<br>
So ask you to confirm;-)<br>
<br>
Eric <br>
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