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Date:      Mon, 18 Aug 2008 09:55:22 -0700
From:      "Kip Macy" <kmacy@freebsd.org>
To:        "Mike Tancsa" <mike@sentex.net>
Cc:        Robert Watson <rwatson@freebsd.org>, freebsd-stable@freebsd.org, John Baldwin <jhb@freebsd.org>
Subject:   Re: HEADS UP: inpcb/inpcbinfo rwlocking: coming to a 7-STABLE branch near you
Message-ID:  <3c1674c90808180955w665476e0s9f37321cfcfd1eed@mail.gmail.com>
In-Reply-To: <200808181622.m7IGM9mk067285@lava.sentex.ca>
References:  <alpine.BSF.1.10.0808031142550.65130@fledge.watson.org> <alpine.BSF.1.10.0808180913450.881@fledge.watson.org> <200808181337.m7IDbqSC066670@lava.sentex.ca> <200808181024.40038.jhb@freebsd.org> <200808181622.m7IGM9mk067285@lava.sentex.ca>

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got it

On Mon, Aug 18, 2008 at 9:22 AM, Mike Tancsa <mike@sentex.net> wrote:
> At 10:24 AM 8/18/2008, John Baldwin wrote:
>
>> >   Edit src/sys/conf/files
>> >    Add delta 1.1243.2.32 2008.07.30.20.35.41 kmacy
>> >   Edit src/sys/netinet/tcp_subr.c
>> >    Add delta 1.300.2.4 2008.07.30.20.35.41 kmacy
>> >   Edit src/sys/netinet/tcp_syncache.c
>> >    Add delta 1.130.2.9 2008.07.30.20.35.41 kmacy
>> >    Add delta 1.130.2.10 2008.07.30.20.51.20 kmacy
>> >   Edit src/sys/netinet/tcp_syncache.h
>> >    Add delta 1.1.2.1 2008.07.30.20.35.41 kmacy
>> >   Edit src/sys/netinet/tcp_usrreq.c
>> >    Add delta 1.163.2.4 2008.07.30.20.35.41 kmacy
>>
>> These are changes by Kip to do TCP offload (181013, 181014).
>>
>> Given that, I think the likeliest changes to cause this are the TCP
>> offload
>> changes.  Note that Kip later MFC'd this change which changed ARP stuff:
>>
>> However, I would stary by narrowing it down to see if Kip's commits cause
>> the
>> change.
>
>
> As I dont have the skills to unwind Robert's patch, I have done the
> following
>
> csup with date=2008.08.01.00.00.00
>
> which shows the problem.  I then manually grabbed the prior versions of the
> above files
>
> 0[smtp2]% ident src/sys/conf/files
> src/sys/conf/files:
>     $FreeBSD: src/sys/conf/files,v 1.1243.2.30 2008/07/25 17:46:01 jhb Exp $
> 0[smtp2]% ident src/sys/netinet/tcp_subr.c
> src/sys/netinet/tcp_subr.c:
>     $FreeBSD: src/sys/netinet/tcp_subr.c,v 1.300.2.3 2008/07/24 01:13:22
> julian Exp $
> 0[smtp2]% ident src/sys/netinet/tcp_syncache.c
> src/sys/netinet/tcp_syncache.c:
>     $FreeBSD: src/sys/netinet/tcp_syncache.c,v 1.130.2.8 2008/07/24 01:13:22
> julian Exp $
> 0[smtp2]% ident src/sys/netinet/tcp_syncache.h
> src/sys/netinet/tcp_syncache.h:
>     $FreeBSD: src/sys/netinet/tcp_syncache.h,v 1.1 2007/07/27 00:57:06 silby
> Exp $
> 0[smtp2]% ident src/sys/netinet/tcp_usrreq.c
> src/sys/netinet/tcp_usrreq.c:
>     $FreeBSD: src/sys/netinet/tcp_usrreq.c,v 1.163.2.3 2008/03/01 11:50:00
> rwatson Exp $
> 0[smtp2]%
>
> All is OK.  So it looks like the above introduced the bug.
>
>        ---Mike
>



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