Shichangkuo
2016-Mar-19 11:24 UTC
[Ocfs2-devel] Re Could the master return DLM_NORMAL when unlock nonexistent locks from other node?
Hi Junxiao
Yes, we have already merged this patchset.
On 03/15/2016 09:55 AM, Shichangkuo wrote:> Hi all,
> When NodeA want to unlock lock-res1, and it send message to NodeB, but
in NodeB any lock queues (granted, converting, blocked) could not find this lock
for some unknown reason, then NodeB reply DLM_IVLOCKID.
> In this situation, NodeA bug. The detail is described as follows.
>
> NODEA NODEB
> ocfs2_drop_lock
> ocfs2_dlm_unlock
> o2cb_dlm_unlock
> dlmunlock
> dlmunlock_remote ----> send message to master
> dlm_unlock_lock_handler
> return DLM_IVLOCKID
> BUG()
>
> I think it's no nessary to let NodeA bug, it just like we removed an
nonexistent file.
> Could NodeB return DLM_NORMAL?
No. This is a lock inconsistent bug. What kernel version are you using?
Please check whether patchset "ocfs2: o2net: don't shutdown connection
when idle timeout" is there. Without this, this inconsistent lock can be
triggered.
Thanks,
Junxiao.>
> Thanks
> Changkuo
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