Messages in this thread | | | Date | Tue, 21 Nov 2006 00:37:45 -0800 | From | Andrew Morton <> | Subject | Re: 2.6.19-rc1-mm1+ memory problem |
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On Mon, 20 Nov 2006 09:26:29 +0300 Michael Raskin <a1d23ab4@mail.ru> wrote:
> Short description: when X is loaded (maybe any heavy application is > sufficient, but I don't use anything heavy in console), 'free' says used > memory is growing. > > Keywords: memory. > > Kernel: built locally, gcc 4.0.3 > > I have a strange problem with 2.6.19-rc-mm kernels. After I load X, I > notice that memory is marked used at rate of tens of KB/s. Then it > starts to swap very heavily, when physical memory is all used. I tried > to verify it - it is so with all -mm kernels after 2.6.19-rc1-mm1, > including 2.6.19-rc5-mm2. At the meantime everything works OK with > kernels 2.6.18-mm3 and 2.6.19-rc1 through 2.6.19-rc6. I do not see any > options that should be memory eating in my .config . Module list is > short enough to include inline. > > When I just run some things like periodical suck, oops proxy server etc > with X shut down, I do not notice "leak" from console because of small > fluctuations of memory use. When I run X and shut it down, used memory > count goes up a few megs (consistent with speed of eating it by X). > > I didn't find exactly this problem in lkml or www, though the problem > with OOM on 2.6.19-rc-mm seems similar. > > What should I check to fix problem or produce a useful bug report?
Monitor /proc/meminfo
If the leak is slab, monitor /proc/slabinfo and /proc/slab_allocators. /proc/slab_allocators needs CONFIG_DEBUG_SLAB_LEAK.
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