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Date:      Fri, 20 Dec 2013 12:57:29 +0100
From:      Michael Tuexen <Michael.Tuexen@lurchi.franken.de>
To:        Adrian Chadd <adrian@freebsd.org>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>, FreeBSD Stable Mailing List <freebsd-stable@freebsd.org>, Mark Felder <feld@freebsd.org>
Subject:   Re: 10.0-RC1: bad mbuf leak?
Message-ID:  <C88BC646-2DD9-4A89-98F3-926C91953DDA@lurchi.franken.de>
In-Reply-To: <CAJ-Vmo=D%2BTq4SNJsEK5a4Aw9as34m31hutU%2BwQ1GqqaD2a3zVg@mail.gmail.com>
References:  <1387204500.12061.60192349.19EAE1B4@webmail.messagingengine.com> <CAJ-VmonGE2=vmFOnCtLVLyNp0=F%2BNUd6OdU6=rROH_PWkyXSDA@mail.gmail.com> <FB1A916C-7ABA-4FFD-A79A-CF757E83F6E8@lurchi.franken.de> <CAJ-Vmo=D%2BTq4SNJsEK5a4Aw9as34m31hutU%2BwQ1GqqaD2a3zVg@mail.gmail.com>

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On Dec 19, 2013, at 9:02 PM, Adrian Chadd <adrian@freebsd.org> wrote:

> On 19 December 2013 01:09, Michael Tuexen
> <Michael.Tuexen@lurchi.franken.de> wrote:
>> On Dec 19, 2013, at 9:41 AM, Adrian Chadd <adrian@freebsd.org> wrote:
>> 
>>> Hm, try reverting just the em code to that from a 10.0-BETA? Just in
>>> case something changed there?
>> I saw a similar behaviour without the patches we are discussing (regarding
>> ignoring the error).
> 
> Hm. Why was that?
I don't know. I have some igb devices nailed down to 100MBit, but I haven't
tested. Since this problem also triggered a problem in SCTP, I looked at
that first and came up with a patch for the drivers to have correctly
in case of drops. However, with my fixes, the mbuf problems went away...

I can revert my patches and try to figure you what is going on... The mbufs
denied counter was already large after a reboot of the system, without any
traffic (SCTP or anything else).

Best regards
Michael
> 
> 
> -a
> 




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