Re: Problems with /proc/net/tcp6 - possible bug - ipv6

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 :

quoted

Eric Dumazet wrote:

quoted

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