Same issue here.
Once the last open file under the mountpoint is closed, umount causes kernel ooops. It looks to me like something has been freed when it shouldn't have been. Note the fact that umount reports "/cluster/gslap01: not mounted", when it most certainly was mounted:
Same issue here.
Once the last open file under the mountpoint is closed, umount causes kernel ooops. It looks to me like something has been freed when it shouldn't have been. Note the fact that umount reports "/cluster/gslap01: not mounted", when it most certainly was mounted:
[root@gslap02 ~]# killall -TERM lock_cleaner gslap01/ gs/bin/ a.1.1.0/ lock_cleaner gslap01/ gs/bin/ a.1.1.0/ lock_cleaner. errors gslap01/ gs/bin/ a.1.1.0/ lock_cleaner. errors gslap01/ gs/database/ 11_7med/ mission_ plan/db_ lock_table. dat gslap01/ gs/bin/ a.1.1.0/ common_ lock_table. dat
[root@gslap02 ~]# lsof | grep /cluster/gslap01
lock_clea 7592 survey1 txt REG 0,23 1332384 95191157 /cluster/
lock_clea 7592 survey1 1w REG 0,23 3886 95191163 /cluster/
lock_clea 7592 survey1 2w REG 0,23 3886 95191163 /cluster/
lock_clea 7592 survey1 3u REG 0,23 16018 94405062 /cluster/
lock_clea 7592 survey1 4u REG 0,23 260 95191135 /cluster/
[root@gslap02 ~]#
[root@gslap02 ~]# lsof | grep /cluster/gslap01
[root@gslap02 ~]# umount /cluster/gslap01
umount: /cluster/gslap01: not mounted
[root@gslap02 ~]#
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: ------------[ cut here ]------------
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: invalid opcode: 0000 [#1] PREEMPT SMP
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ... pci0000: 00/0000: 00:1c.5/ 0000:09: 00.0/net/ eth0/statistics /collisions
gslap02 kernel: last sysfs file: /sys/devices/
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: Process umount.nfs4 (pid: 8895, ti=e0834000 task=e08b7540 task.ti=e0834000)
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: Stack:
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: Call Trace:
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ...
gslap02 kernel: Code: 46 20 c7 45 ec 00 00 00 00 85 c0 74 06 8b 40 60 89 45 ec 8d 82 5c 01 00 00 50 51 53 57 ff 75 ec 56 68 18 26 7f c0 e8 fe d2 f3 ff <0f> 0b 83 c4 1c eb fe 8b 7e 10 8d 46 68 89 45 e4 39 fe 75 1f 8b
Message from syslogd@ at Mon Sep 5 10:54:52 2011 ... dcache_ for_umount_ subtree+ 0xd5/0x1a0 SS:ESP 0068:e0835e8c
gslap02 kernel: EIP: [<c050360a>] shrink_