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From: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
To: Bernd <ecki@zusammenkunft.net>
Cc: Neal Cardwell <ncardwell@google.com>,
	netdev <netdev@vger.kernel.org>,
	edumazet@google.com
Subject: Re: [PATCH net 2/4] tcp: tcp_fragment() should apply sane memory limits
Date: Wed, 14 Aug 2019 11:41:32 -0300
Message-ID: <20190814144132.GA2869@localhost.localdomain> (raw)
In-Reply-To: <CABOR3+zQ0yfbcon6bv5TXrrAomoWLxy101iEXqBycDTrhytDiA@mail.gmail.com>

On Fri, Aug 02, 2019 at 09:58:12PM +0200, Bernd wrote:
> 2019-08-02 21:14 GMT+02:00, Neal Cardwell <ncardwell@google.com>:
> > What's the exact kernel version you are using?
> 
> It is the RHEL errata kernel 3.10.0-957.21.3.el7 (rhsa-2019:1481), i
> need to check if there is a newer one.

FWIW, this one doesn't have the patch below.

  Marcelo

> 
> > Eric submitted a patch recently that may address your issue:
> >    tcp: be more careful in tcp_fragment()
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=b617158dc096709d8600c53b6052144d12b89fab
> >
> > Would you be able to test your workload with that commit
> > cherry-picked, and see if the issue still occurs?
> 
> It only happens on a customer system in production up to now, so most
> likely not.
> 
> > That commit was targeted to many stable releases, so you may be able
> > to pick up that fix from a stable branch.
> 
> The only thing which is a bit strange, this is a Java client, and I am
> pretty sure we don’t set a small SO_SNDBUF, if anything it is
> increased (I need to verify that).
> 
> Not to worry, I guess I can now with your helpful pointer sort that
> out with Redhat.
> 
> gruss
> Bernd
> 

  reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 19:02 Bernd
2019-08-02 19:14 ` Neal Cardwell
2019-08-02 19:58   ` Bernd
2019-08-14 14:41     ` Marcelo Ricardo Leitner [this message]
  -- strict thread matches above, loose matches on Subject: below --
2019-06-17 17:03 [PATCH net 0/4] tcp: make sack processing more robust Eric Dumazet
2019-06-17 17:03 ` [PATCH net 2/4] tcp: tcp_fragment() should apply sane memory limits Eric Dumazet
2019-06-17 17:14   ` Jonathan Lemon
2019-06-18  0:18   ` Christoph Paasch
2019-06-18  2:28     ` Eric Dumazet
2019-06-18  3:19       ` Christoph Paasch
2019-06-18  3:44         ` Eric Dumazet
2019-06-18  3:53           ` Christoph Paasch
2019-06-18  4:08             ` Eric Dumazet
2019-07-10 18:23         ` Prout, Andrew - LLSC - MITLL
2019-07-10 18:28           ` Eric Dumazet
2019-07-10 18:53             ` Prout, Andrew - LLSC - MITLL
2019-07-10 19:26               ` Eric Dumazet
2019-07-11  7:28                 ` Christoph Paasch
2019-07-11  9:19                   ` Eric Dumazet
2019-07-11 18:26                     ` Michal Kubecek
2019-07-11 18:50                       ` Eric Dumazet
2019-07-11 10:18                   ` Eric Dumazet
2019-07-11 17:14                 ` Prout, Andrew - LLSC - MITLL
2019-07-11 18:28                   ` Eric Dumazet
2019-07-11 19:04                     ` Jonathan Lemon
2019-07-12  7:05                       ` Eric Dumazet
2019-07-16 15:13                   ` Prout, Andrew - LLSC - MITLL

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