[Ocfs2-tools-devel] [PATCH 2/2] o2hbmonitor: Limit number of active instances

Sunil Mushran sunil.mushran at ORACLE.COM
Wed Dec 8 18:29:36 PST 2010


On 12/08/2010 06:23 PM, Tristan Ye wrote:
>    I'm just wondering how you can go with POSIX semaphores on known 'SIGKILL'
> problem, it was just incapable of undoing the locks after SIGKILL being delivered.
> Also, my testing wasn't supportive to your patches as well.
>
>    Like what Joel said, System V semaphores have no troubling deal with the issue
> by 'SEM_UNDO'.

So you see /dev/shm/sem.o2hbmonitor after kill -9?

If that is the case, then sem_undo patch will be the best approach, imho.



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