Messages in this thread | | | Subject | Re: mprotect() failed: Cannot allocate memory | Date | Wed, 21 Apr 2010 12:42:40 +0300 | From | Paweł Sikora <> |
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Dnia 21-04-2010 o 13:16:50 Peter Zijlstra <peterz@infradead.org> napisał(a):
> On Wed, 2010-04-21 at 01:05 +0200, Paweł Sikora wrote: >> hi, >> >> i'm trying to debug an ugly application with ElectricFence. >> in fact, on x86-64 box with 8GB ram and 16GB swap i'm getting following >> error: >> >> "ElectricFence Exiting: mprotect() failed: Cannot allocate memory" >> >> the program has been compiled with gcc-4.5, glibc-2.11.1, kernel-2.6.32. >> did you ever come across such (kernel/glibc) limitations? >> >> here's a simple testcase which triggs -ENOMEM in mprotect(). > > You probably depleted the max map count, see: > /proc/sys/vm/max_map_count
yes, that is the clue :)
the limit in /proc/sys/vm/max_map_count was set to 65530. with `echo 128000 > /proc/sys/vm/max_map_count` the testcase passes.
thanks for hint. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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