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Date: Thu, 12 Apr 2007 02:19:02 -0300 From: Pedro <linux_user@...cksohn.com> To: linux-kernel@...r.kernel.org Subject: Re: tmpfs and the OOM killer On Wednesday 11 April 2007 19:39, Alan Cox wrote: > > 2) How should an application be written to not be killed by OOM? > > OOM isn't an application matter. The kernel has to choose between > allowing overcommit on the basis it might run out of memory and have to > kill stuff, or that it won't in which case an applicatio which correctly > handles malloc() and similar failures will not be killed (unless it is > out of space on a stack grow which is a C language flaw as you can't > catch that event in C) > > It's configured by /proc/sys/vm/overcommit_memory > > 0 - try and spot obviously dumb allocations > 1 - anything goes > 2 - strictly control resource commit I deduce that a fail-safe application must scanf overcommit_memory, warn the user and waitpid. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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