From: Eric Dumazet <eric.dumazet@gmail.com>
To: Krzysztof Kolasa <kkolasa@winsoft.pl>
Cc: netdev@vger.kernel.org, edumazet@gmail.com,
David Miller <davem@davemloft.net>
Subject: Re: something is wrong in commit 971f10eca1 - tcp: better TCP_SKB_CB layout to reduce cache line misses
Date: Sun, 12 Oct 2014 11:46:53 -0700 [thread overview]
Message-ID: <1413139613.9362.78.camel@edumazet-glaptop2.roam.corp.google.com> (raw)
In-Reply-To: <543AB655.6060603@winsoft.pl>
On Sun, 2014-10-12 at 19:11 +0200, Krzysztof Kolasa wrote:
> This commit is the result of bisect my problem with window decoration in
> gnome shell ( button, icons, colors etc.)
>
> after revert this commit I don't have any problem with themes windows
>
> a little impossible, commit to the network and affect the graphics might
> be a problem with the allocation and release of memory
>
> my system: 64bit Ubuntu 12.04.5 LTS, kernel next
>
> latest AMD fglrx driver 14.301 ( problem tested and exist in 14.200 also )
>
> Regards,
>
> Krzysztof
Hi Krzysztof
This sounds quite strange to me. Some memory corruption might happen
regardless of networking changes, and this commit could uncover an
existing bug.
You might try different SLUB/SLAB choice, and try different debugging
SLUB/SLAB facilities.
With SLUB, skbuff_fclone_cache shares :t-0000512 kmem cache.
You could try slub_nomerge=1 for a start.
next prev parent reply other threads:[~2014-10-12 18:46 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-12 17:11 something is wrong in commit 971f10eca1 - tcp: better TCP_SKB_CB layout to reduce cache line misses Krzysztof Kolasa
2014-10-12 18:46 ` Eric Dumazet [this message]
2014-10-13 23:59 ` Cong Wang
2014-10-14 0:09 ` Cong Wang
2014-10-14 13:25 ` Krzysztof Kolasa
2014-10-14 18:59 ` Cong Wang
2014-10-14 19:03 ` David Miller
[not found] ` <CAFrEnehWNzmzZGV-ZGbZF=wJ1q0TjFtB1yG6Dp1yVrJmBj9B7Q@mail.gmail.com>
2014-10-14 20:47 ` David Miller
2014-10-14 21:03 ` Eric Dumazet
2014-10-14 21:15 ` David Miller
2014-10-14 21:24 ` Cong Wang
2014-10-14 21:43 ` Eric Dumazet
2014-10-15 10:35 ` Krzysztof Kolasa
2014-10-15 11:27 ` Eric Dumazet
2014-10-15 11:40 ` Krzysztof Kolasa
2014-10-15 15:32 ` Eric Dumazet
2014-10-15 20:20 ` Krzysztof Kolasa
2014-10-15 20:36 ` Cong Wang
2014-10-15 20:42 ` Krzysztof Kolasa
2014-10-15 21:22 ` Cong Wang
2014-10-15 21:25 ` Cong Wang
2014-10-15 21:39 ` Eric Dumazet
2014-10-15 21:42 ` Eric Dumazet
2014-10-17 19:29 ` David Miller
2014-10-17 19:48 ` Eric Dumazet
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