On Mon, Mar 27, 2006 at 17:23:56 -0800 (-0800), Andrew Morton wrote:
>
> Do you mean that the problem has been present in -mm kernels since the
> 2.6.14/15 timeframe, and not in mainline?
Correct.
> Strange. Are you sure that they really leak? Doing
>
> echo 3 > /proc/sys/vm/drop_caches
>
> doesn't make them go away?
dentry_cache drops a little bit, but the vast majority stays.
sock_inode_cache I didn't notice drop. If I don't reboot every
15/20mins the machine suddenly starts thrashing like mad and then
effectively locks up :-(
Last night I tried reverting the dvb-core ringbuffer part of -mm1 and
that didn't seem to help at all.
I've just tried 2.6.16 with just the origin.patch from -mm1 and that
has the same leak in it. So it looks like I should have spotted this
earlier before it was pushed into 2.6.16+ Just double checked and
in 2.5.16 sock_inode_cache isn't even on the slabtop screen.
I suppose that leads to a new question - what's the easiest way to
start to break down origin.patch and do you know of any likely
culprits? I see Andi Kleen has seen dentry_cache leaking on x86_64
(this machine is x86(_32) uni processor.
Thanks for your help,
Adrian
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