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SubjectRe: Problems with /proc/net/tcp6 - possible bug - ipv6
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Le samedi 22 janvier 2011 à 22:20 +0100, Eric Dumazet a écrit :
> Le samedi 22 janvier 2011 à 11:42 -0800, PK a écrit :
> > Eric Dumazet wrote:
> > >
> > > I had some incidents, after hours of testing...
> > >
> > > After following patch, I could not reproduce it.
> >
> >
> > Looks like that patch solved the /proc/net/tcp6 problem. The causal commit was
> > the one you identified... confirmed with bisect.
> >
> > These warnings show up when I run the script (or I presume any tcp6 connection
> > flooder) with /proc/sys/net/tcp/ipv4/tcp_tw_recycle enabled. There's textual
> > corruption of the traces a lot of the time. Here's a sample trace that doesn't
> > appear to be corrupt. All the warnings I've seen are from route.c:209, and I
> > don't see how that would cause memory corruption.
>
> Thats a different isse, already reported, under investigation.
>
> David did some changes recently
>
> http://comments.gmane.org/gmane.linux.network/179874
>
>
>

In my testings, I even have crashes in cleanup_once() if I
enable /proc/sys/net/ipv4/tcp_tw_recycle



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