All,
I have a 3 node cluster that is experiencing kernel panics once every few days.
We are sharing some of the ocfs2 filesystems via nfs to some web app servers.
The app servers mount the filesystems with the nordirplus option. Are there
any known pitfalls with using an nfs4 server and ocfs2? I haven't seen a case
where all three nodes are down at the same time, but the issue seems to travel
from node to node. Here are the node details:
OS: RHEL5.4
Kernel: 2.6.18-164.11.1.el5 #1 SMP Wed Jan 6 13:26:04 EST 2010 x86_64 x86_64
x86_64 GNU/Linux
OCFS2 Packages: ocfs2console-1.4.3-1.el5
ocfs2-tools-1.4.3-1.el5
ocfs2-2.6.18-164.11.1.el5-1.4.4-1.el5
The following is always logged in /var/log/messages right before the node
panics:
kernel: (11915,0):ocfs2_inode_lock_update:1970 ERROR: bug expression:
inode->i_generation != le32_to_cpu(fe->i_generation)
kernel: (11915,0):ocfs2_inode_lock_update:1970 ERROR: Invalid dinode 446146
disk generation: 1276645928 inode->i_generation: 1276645926
kernel: ----------- [cut here ] --------- [please bite here ] ---------
The following is part of the kernel panic:
Call Trace:
[<ffffffff885a2940>] :ocfs2:ocfs2_delete_inode+0x187/0x73f
[<ffffffff885a27b9>] :ocfs2:ocfs2_delete_inode+0x0/0x73f
[<ffffffff8002f463>] generic_delete_inode+0xc6/0x143
[<ffffffff885a22e3>] :ocfs2:ocfs2_drop_inode+0xca/0x12b
[<ffffffff885a693f>] :ocfs2:ocfs2_complete_recovery+0x77e/0x910
[<ffffffff885a61c1>] :ocfs2:ocfs2_complete_recovery+0x0/0x910
[<ffffffff8004d8ed>] run_workqueue+0x94/0xe4
[<ffffffff8004a12f>] worker_thread+0x0/0x122
[<ffffffff8009fe9f>] keventd_create_kthread+0x0/0xc4
[<ffffffff8004a21f>] worker_thread+0xf0/0x122
[<ffffffff8008c86c>] default_wake_function+0x0/0xe
[<ffffffff8009fe9f>] keventd_create_kthread+0x0/0xc4
[<ffffffff80032950>] kthread+0xfe/0x132
[<ffffffff8005dfb1>] child_rip+0xa/0x11
[<ffffffff8009fe9f>] keventd_create_kthread+0x0/0xc4
[<ffffffff80032852>] kthread+0x0/0x132
[<ffffffff8005dfa6>] child_rip+0x0/0x11
Code: 0f 0b 68 1b 3d 5c 88 c2 b2 07 48 83 7b 48 00 75 0a f6 43 2c
RIP [<ffffffff885928f5>] :ocfs2:ocfs2_inode_lock_full+0x99e/0xe3c
RSP <ffff810c0af0fc70>
<0>Kernel panic - not syncing: Fatal exception
Any help anyone could provide would be appreciated.
-Mike
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