Messages in this thread | | | From | "Manfred Spraul" <> | Subject | Re: Uptime again? | Date | Sun, 27 Jan 2002 20:46:56 +0100 |
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From: "Hartmut Holz" <hartmut.holz@arcor.de> > Rik van Riel wrote: > > > > The fact that lavrec crashes the machine while Xawtv works > > suggests a device driver may be corrupting memory somewhere. > > > > I got a debug patch from Manfred Spraul to debug slab.c.
poisoning of fields of 'struct page', slab poisoning, even of objects with constructors. Same patch as: http://groups.google.com/groups?selm=linux.kernel.3C3B6F65.F9226437%40colorfullife.com&rnum=1
> With this patch > the machine ran for about 3 hours. No problem. I looked into slab.c and had an > idea. What about just one CPU. So I built a new Kernel with just one CPU. > Result: 1 CPU 1 Minute - 2 CPU 20 Minutes. I aspected a different result. > In my opinion the whole thing has something to do with slab, SMP and threads. > Not with slab itself, probably with a slab user. Someone uses a stale pointer.
What do you means with one cpu? Did you boot a SMP kernel with "nosmp" on the command line, or did you make a kernel without CONFIG_SMP?
-- Manfred
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