Messages in this thread | | | Date | Wed, 24 Apr 2013 15:36:20 +0000 | From | Christoph Lameter <> | Subject | Re: OOM-killer and strange RSS value in 3.9-rc7 |
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On Wed, 24 Apr 2013, Michal Hocko wrote:
> [CCing SL.B people and linux-mm list] > > Just for quick summary. The reporter sees OOM situations with almost > whole memory filled with slab memory. This is a powerpc machine with 4G > RAM.
Boot with "slub_debug" or enable slab debugging.
> /proc/slabinfo shows that almost whole slab occupied memory is on
Please enable debugging and look at where these objects were allocated.
> It is not clear who consumes that memory and the reporter claims this is > vanilla 3.9-rc7 kernel without any third party modules loaded. The issue > seems to be present only with CONFIG_SLUB.
cat /sys/kernel/slab/kmalloc-*/alloc_calls
will show where these objects are allocated.
A dump of the other fields in /sys/kernel/slab/kmalloc*/* would also be useful.
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