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* Kernel call chain search tool?
@ 2002-09-25  4:36 Dan Kegel
  2002-09-26 15:15 ` Alan Cox
  0 siblings, 1 reply; 5+ messages in thread
From: Dan Kegel @ 2002-09-25  4:36 UTC (permalink / raw)
  To: linux-kernel

I have a large multithreaded program that has a habit of using too
much memory, and as a safeguard, I want to kill it before it makes
the system unstable.  The OOM killer often guesses wrong, and RLIMIT_AS
kills too soon because of the address space used up by the many thread
So I'd like an RLIMIT_RSS that just kills the fat process.

There have been a couple patches to implement RLIMIT_RSS, e.g.
Peter Chubb's
and the two from Rik, all of which are too complex for my needs
(and which only swap out instead of kill), so I guess I have to roll my

Rik's patch checks rss in handle_mm_fault(); Peter's
checked it in do_swap_page() and do_anonymous_page().
As a kernel newbie, I don't have a feel for how
those calls relate to each other.  Is there a tool 
somewhere that will take a set of function names and 
list all the kernel call chains that start in one of
the functions and end in another?

- Dan

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2002-09-27  0:24 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-09-25  4:36 Kernel call chain search tool? Dan Kegel
2002-09-26 15:15 ` Alan Cox
2002-09-26 16:17   ` Dan Kegel
2002-09-26 19:07     ` Rob Landley
2002-09-27  0:39       ` OOM killer hints (was: Re: Kernel call chain search tool?) Dan Kegel

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