Holger Eitzenberger <[email protected]> wrote:
>
> On Mon, Jan 30, 2006 at 11:34:27PM -0800, Andrew Morton wrote:
>
> > - A skbuff_head_cache leak causes oom-killings.
> >
> > All of these only seem to affect a small minority of machines.
>
> Hi,
>
> I have searched for a description for the above mentioned bug report,
> but havent found any. Can you tell me?
http://www.mail-archive.com/[email protected]/msg06355.html
> The reason why I am asking that I am facing a similar problem on
> kernel 2.6.10. During performance tests (Intel XEON, SMP, PCI-X,
> e1000, 2 - 4 Gig RAM) the machine was out of memory.
>
> Tests showed that LowFree went linearly down to a few megabytes, where
> most of the memory was used in skb_head_cache and size-1024 slab
> caches. These two summed up to ~270 MG, which was the reason for
> that.
>
> /proc/net/tcp showed that most of the memory was stuck in the RX
> queues of some processes (two processes with ~1000 sockets each).
>
> A look into /proc/sys/net/ipv4/tcp_mem showed that that the values in
> there were way to high. I hope that a reduction of these values will
> help (not done yet).
>
Sounds different. Please test a more recent kernel and if the problem is
still there, send a report to linux-kernel and cc [email protected].
Include the contents of /proc/meminfo and /proc/slabinfo. Thanks.
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