[Ocfs2-devel] Could the master return DLM_NORMAL when unlock nonexistent locks from other node?

[Shichangkuo]

Hi Gang and Joseph,
    Thanks for your reply.
    The key point is how to reproduce this issue, I have analysed all cluster-nodes since 2 days ago, but find few useful information. now we are trying to reproduce it.
    Could you give me some suggestions about how to reproduce make it easier?

Thanks
Changkuo
>>>

Hi Changkuo,

From your description, the concern looks to make sense.
Could you reproduce this issue? if yes, I think we should adjust this logic more quickly.

Thanks
Gang


>>>
> 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?
>
> Thanks
> Changkuo
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