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* Panic on OOM
@ 2011-06-14 13:31 Chris Fowler
  2011-06-15  0:13 ` David Rientjes
                   ` (2 more replies)
  0 siblings, 3 replies; 15+ messages in thread
From: Chris Fowler @ 2011-06-14 13:31 UTC (permalink / raw)
  To: linux-kernel

I'm running into a problem in 2.6.38 where the kernel is not doing what
I'm expecting it to do.  I'm guessing that some things have changed and
that is what it going on.

First,  The tune at boot:

        f.open("/proc/sys/vm/panic_on_oom", std::ios::out);
        f << "1";
        f.close();

        f.open("/proc/sys/kernel/panic", std::ios::out);
        f << "10";
        f.close();

I want the kernel to panic on out of memory.  I then want it to wait 10s
before doing a reboot.

This program will consume all memory and make the box unresponsive

#!/usr/bin/perl

my @mem = ()
while(1) {
  push @mem, "########################";
}

It does not take long to fill up 1G of space.  There is NO swap on this
device and never will be.  I did notice that after a long period of time
(I've not timed it) I finally do see a panic and I do see "rebooting in
10 seconds..." .  It does not reboot.


I'm guessing that there are some tweaks or new behavior I just need to
be aware of.

Thanks,
Chris



^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2011-06-15 20:11 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-06-14 13:31 Panic on OOM Chris Fowler
2011-06-15  0:13 ` David Rientjes
2011-06-15  2:04   ` Chris Fowler
2011-06-15  2:32     ` David Rientjes
2011-06-15  2:41       ` Chris Fowler
2011-06-15  2:51         ` David Rientjes
2011-06-15  2:53           ` Chris Fowler
2011-06-15 13:50           ` Chris Fowler
2011-06-15 20:07             ` David Rientjes
2011-06-15 20:11               ` Chris Fowler
2011-06-15  2:48       ` Chris Fowler
2011-06-15  0:41 ` KAMEZAWA Hiroyuki
2011-06-15  1:44   ` Chris Fowler
2011-06-15  2:05     ` David Rientjes
2011-06-15  0:54 ` KOSAKI Motohiro

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