On Wed, Feb 01, 2006 at 11:10:01PM -0800, Andrew Morton wrote:
> "Kevin O'Connor" <[email protected]> wrote:
> >
> > I have an annoying slab leak on my kernel. Every day, I lose about
> > 50Megs of memory to the leak. It seems to be related to disk
> > accesses, because the count only goes up noticeable around 4:00am when
> > the system locate utility runs.
> >
> > I can tell there is a leak because /proc/slabinfo shows "size-128"
> > growing continuously. For example, it currently reads:
>
> -mm kernels have a patch (slab-leak-detector.patch) which will help.
> Here's a version for 2.6.16-rc1. It requires CONFIG_DEBUG_SLAB. Thanks.
Thanks Andrew.
I've applied the patch and found the leak. It's in kzalloc. :-)
With kzalloc inlined, however, it appears that selinux is the likely
culprit. I would not have expected that.
After running updatedb I got 23530 occurrences of:
kernel: obj ffff81003f04f000/12: ffffffff801ed7b7 <selinux_inode_alloc_security+0x37/0x100>
I'm not sure how to debug selinux issues, but at least I can disable
it.
-Kevin
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