<br><font size=2 face="sans-serif">From further research it looks as though
this is a known problem with open-unlinked directories in 1.8.2 and a fix
is attached to bug 22177. Would an upgrade to 1.8.4 be advised?</font>
<br>
<br><font size=2 face="sans-serif">Thanks again</font>
<br><font size=2 face="sans-serif"><br>
Rocky </font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">From:</font>
<td><font size=1 face="sans-serif">Ronald K Long <rklong@usgs.gov></font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">To:</font>
<td><font size=1 face="sans-serif">lustre-discuss@lists.lustre.org</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Date:</font>
<td><font size=1 face="sans-serif">10/01/2010 06:32 AM</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Subject:</font>
<td><font size=1 face="sans-serif">[Lustre-discuss] Lustre file system
crashing</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Sent by:</font>
<td><font size=1 face="sans-serif">lustre-discuss-bounces@lists.lustre.org</font></table>
<br>
<hr noshade>
<br>
<br>
<br><font size=2 face="sans-serif"><br>
We are currently trying to stand up a lustre file system in a system test
environment before moving it into production. Twice in the last week
the file system has locked up with the only recourse of recovery was to
reboot all clients attached along with the mds/mdt.</font><font size=3>
<br>
</font><font size=2 face="sans-serif"><br>
We are currently running Lustre 1.8.2. Here is the LBUG info we are
receiving. If there is anything else I can provide to help find the
cause please let me know.</font><font size=3> <br>
</font><font size=2 face="sans-serif"><br>
Sep 30 05:30:01 edclxs200 auditd[4529]: Audit daemon rotating log files</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: LustreError: 7193:0:(mds_reint.c:1772:mds_orphan_add_link())
ASSERTION(inode->i_nlink == 2)</font><font size=3> </font><font size=2 face="sans-serif"><br>
failed: dir nlink == 1</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: LustreError: 7193:0:(mds_reint.c:1772:mds_orphan_add_link())
LBUG</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: Lustre: 7193:0:(linux-debug.c:264:libcfs_debug_dumpstack())
showing stack for process 7193</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: ll_mdt_30 R running
task 0 7193 1
7195 7192 (L-TLB)</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: ffff810592dd7100 ffff81010ba88000
0000000000000282 0000000000000082</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: 0000008100001400 ffff810348753ef8
0000000000000001 0000000000000001</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: ffff810345bcc5b8 0000000000000000
ffff810348615e10 ffffffff8008ac95</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: Call Trace:</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff8008ac95>] __wake_up_common+0x3e/0x68</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff88703f58>] :ptlrpc:ptlrpc_main+0x1258/0x1420</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff8008c86b>] default_wake_function+0x0/0xe</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff800b7076>] audit_syscall_exit+0x336/0x362</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff8005dfb1>] child_rip+0xa/0x11</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff88702d00>] :ptlrpc:ptlrpc_main+0x0/0x1420</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: [<ffffffff8005dfa7>] child_rip+0x0/0x11</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel:</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:45:22 edclxs200 kernel: LustreError: dumping log to /tmp/lustre-log.1285879522.7193</font><font size=3>
</font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: Lustre: Service thread pid 7193 was inactive
for 200.00s. The thread might be hung, or it mi</font><font size=3> </font><font size=2 face="sans-serif"><br>
ght only be slow and will resume later. Dumping the stack trace for debugging
purposes:</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: Lustre: 0:0:(linux-debug.c:264:libcfs_debug_dumpstack())
showing stack for process 7193</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: ll_mdt_30 D ffffffff8014e8f3
0 7193 1
7195 7192 (L-TLB)</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: ffff8103486157f0 0000000000000046
0000000000000000 ffffffff8006b921</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: ffff8103486157b0 0000000000000009
ffff81034df607e0 ffff81034fcd3080</font><font size=3> </font><font size=2 face="sans-serif"><br>
Sep 30 15:48:42 edclxs200 kernel: 000290eac846946f 0000000000001d1b
ffff81034df609c8 000000098003bcc8</font><font size=3> <br>
<br>
</font><font size=2 face="sans-serif"><br>
<br>
Rocky </font><tt><font size=2>_______________________________________________<br>
Lustre-discuss mailing list<br>
Lustre-discuss@lists.lustre.org<br>
</font></tt><a href="http://lists.lustre.org/mailman/listinfo/lustre-discuss"><tt><font size=2>http://lists.lustre.org/mailman/listinfo/lustre-discuss</font></tt></a><tt><font size=2><br>
</font></tt>
<br>
<br>