Messages in this thread | | | Date | Tue, 12 Nov 2002 05:21:13 +0000 | From | Jamie Lokier <> | Subject | Re: Users locking memory using futexes |
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Perez-Gonzalez, Inaky wrote: > This raises a good point - I guess we should be doing something like > checking user limits (against locked memory, 'ulimit -l').
If futexes are limited by user limits, that's going to mean some threading program gets a surprise when too many threads decide to block on a resource. That's really nasty. (Of course, a program can get a surprise due to just running out of memory in sys_futex() too, but that's much rarer).
It would be nice if the futex waitqueues could be re-hashed against swap entries when pages are swapped out, somehow, but this sounds hard.
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