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Bug#279666: kernel-image-2.6.8-1-k7: Runs out of network buffers

On Thu, Nov 04, 2004 at 09:29:18AM -0500, Len Sorensen wrote:
> Package: kernel-image-2.6.8-1-k7
> Version: 2.6.8-4
> Severity: important
> For the last week or so, I have had to reboot my machine to get network
> access back.  After a couple of days of doing the usually work
> (webbrowsing, bittornado, email, irssi, and such) it stops being able to
> establish network connections.  It also shows an enourmous amount of
> memory in use, even though nothing in top or ps has any indication of
> using that memory.  Basically about 250M of ram seems to have just
> disappeared somewhere.

Sounds like a memory leak in the kernel somewhere.

> The kernel outputs this whenever I try to do something on the network:
> kernel: dst cache overflow
> While trying to run links or other programs with network connections
> get:
> connect: No buffer space available
> I have never seen this under 2.6.7 or earlier, and I am not sure if it
> started happening after going to 2.6.8, or just after the latest 2.6.8
> update (although I believe it was only after the latest update or two).
> I hope there is some explanation for this behavior in the current
> kernel, since the machine load is the same as was working fine under
> prior kernels, and I would hate to see this behaviour in the kernel that
> would ship with sarge.
> Any suggestions for things to make note of or log the next time it
> happens (It probably will), I would be happy to try out.
> Note: I am running with a set of drivers added to run a Sangoma ADSL
> PCI card (www.sangoma.com) although I have been using those for a while
> with no problems.  I may try removing them to see if they are part of the
> problem or not.

I think it would be worth seeing if the behaviour is exhibited 
without those drivers. 


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