On Sun, Aug 26, 2007 at 10:39:11AM -0400, Fred Tyler wrote:
> I think I've come across a memory leak in 2.6.20. I've upgraded to the
> latest 2.6.20.17, but it didn't seem to help.
>
> A little background: I saw something exactly like this many months ago
> with a 2.6.12 kernel. However, by 2.6.16.x the leak had apparently
> been fixed, so I didn't pursue it. I just assumed it had been fixed.
> But either it remains in 2.6.20 or else a new leak has appeared.
>
> FWIW, this is an x86_64 machine, but I also saw nearly the same
> behavior on a i386 machine running 2.6.12. (Links to graphs showing
> long-term memory usage are at the bottom of this email if you want to
> skip all the text stats in the middle.)
>
> Immediately after booting the system, I shut down all services to get
> a baseline for comparison. Here is the output of top and vmstat with
> virtually nothing running:
You can try "Kernel Hacking" => "Debug slab memory allocations" =>
"Memory leak debugging". After you think it leaked pretty much, post
output of
sort -n -k2 /proc/slab_allocators
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