netdev - Re: /proc/net/sockstat invalid memory accounting or memory leak in latest kernels? (trying to debug)

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Date:	Mon, 17 Nov 2014 17:33:41 +0200
From:	Denys Fedoryshchenko <nuclearcat@...learcat.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Neal Cardwell <ncardwell@...gle.com>,
	Yuchung Cheng <ycheng@...gle.com>, netdev@...r.kernel.org
Subject: Re: /proc/net/sockstat invalid memory accounting or memory leak in
 latest kernels? (trying to debug)

On 2014-11-17 12:22, Denys Fedoryshchenko wrote:
>> Hmm.... I have an updated patch, sorry.
>> 
...
> 
> Installed patch, but will have to wait a while (usually at least
> 24hours), to be sure if it is stable.
> 
> Thanks a lot!
Tried updated patch, it seems crashed same after while with it too, and 
on second test i noticed same value overflow.

In debug, after i added alert if sk_forward_alloc > 1147483648 i noticed 
that on some sockets it continuously increasing this value until it will 
overflow.
I can provide logs if it is interesting.

I will try to sysctl fastopen to zero, to make sure if it changes 
anything.


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