Re: [PATCH 2.6.27-rc5] Fix itimer/many thread hang.

From: Roland McGrath
Date: Wed Sep 10 2008 - 00:07:00 EST


> As for this particular function, it seems to me that ->signal == NULL
> is not possible, no?

The concern is to make sure that the timer tick path is always safe for a
tick that hits during release_task(current) in exit_notify(). A timer tick
there can come with current->signal == NULL. We just need to make sure one
way or another that this is safe.


Thanks,
Roland
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