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Date:      Fri, 29 Jan 2010 17:43:54 -0800
From:      Jack Vogel <jfvogel@gmail.com>
To:        Nick Rogers <ncrogers@gmail.com>
Cc:        FreeBSD STABLE <freebsd-stable@freebsd.org>
Subject:   Re: em interface slow down on 8.0R
Message-ID:  <2a41acea1001291743j46252b66g7fa8fccb39d0520@mail.gmail.com>
In-Reply-To: <147432021001291728w65debe89s127667ed8eca92be@mail.gmail.com>
References:  <147432021001242047k659a26d0s44b35164920aeb74@mail.gmail.com> <147432021001251038r69393ab3m1a797e58f9fa905a@mail.gmail.com> <02307620-ECDC-4E8B-A5B1-FF8491E226C4@nokia.com> <33c6b0bc1001252031k508426bfh25fad65e9223d87@mail.gmail.com> <147432021001260900p60ed1804t97392d2dff5cd244@mail.gmail.com> <20100128121701.GB9408@goofy.tols.org> <2a41acea1001281116k7d14cc26x120f9960ab14d19d@mail.gmail.com> <20100129133824.GE23403@goofy.tols.org> <2a41acea1001290945m77e9ae18if927716d82e50b2f@mail.gmail.com> <147432021001291728w65debe89s127667ed8eca92be@mail.gmail.com>

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You know, i know absolutely nothing about ALTQ :) This is the first I've
heard
about this problem, you should make sure the maintainer of the driver gets
informed sooner :)

Would be happy to look into it as I have time.

Jack


On Fri, Jan 29, 2010 at 5:28 PM, Nick Rogers <ncrogers@gmail.com> wrote:

> Does any of this have anything to do with the fact that ALTQ seems to be
> broken for em(4) under 8.0-RELEASE? I just ran into this similar problem
> today where my PF/ALTQ hfsc rules no longer seem to do anything on em
> interfaces.
>
> http://forums.freebsd.org/showthread.php?t=6656
>
> Any information regarding this would be appreciated. Thanks.
>
>
> On Fri, Jan 29, 2010 at 9:45 AM, Jack Vogel <jfvogel@gmail.com> wrote:
>
>> No need, I set it up and tried it, and I was right, it does not fail if
>> that
>> routine is not used. The interesting thing is that the igb driver, which
>> has the same code, works fine.
>>
>> In any case, I'm hot on the track of this and hope I can figure it out
>> today.
>>
>> Jack
>>
>>
>> On Fri, Jan 29, 2010 at 5:38 AM, Marco van Tol <marco@tols.org> wrote:
>>
>> > On Thu, Jan 28, 2010 at 11:16:02AM -0800, Jack Vogel wrote:
>> > > I am investigating it, and have a suspicion about what's going on, you
>> > can
>> > > assist in verifying my suspicion.  In if_em.c search for
>> > "em_setup_vlan_hw",
>> > > you will find a compile time option that uses that only if
>> > FreeBSD_version
>> > > is > 700029, hack the code however you wish so that it uses the OLD
>> way
>> > > (ie that it never calls em_setup_vlan_hw_support()) and see if that
>> makes
>> > > the issue disappear.
>> >
>> > Oh good, I will try that and let you know about the result first chance
>> I
>> > get.  Should be days rather then hours, but I'll make it asap.
>> >
>> > > If you have any problems or questions email me directly.
>> >
>> > Will do, thanks!
>> >
>> > Marco
>> >
>> >
>> >
>> >
>> > > On Thu, Jan 28, 2010 at 4:17 AM, Marco van Tol <marco@tols.org>
>> wrote:
>> > >
>> > > > On Tue, Jan 26, 2010 at 09:00:35AM -0800, Nick Rogers wrote:
>> > > > > Is it advisable to patch 8.0-RELEASE kernel sources with the
>> latest
>> > > > > (CURRENT) em driver (i.e., src/sys/dev/e1000)? It looks like there
>> > are
>> > > > some
>> > > > > updates to the driver since 8.0-RELEASE that may fix some
>> problems?
>> > > >
>> > > > While on the em subject, forgive me if I mail this to the
>> inappropriate
>> > > > place, but is there any ETA on progress for bug kern/141646?
>> > > >
>> > > > I'm currently suffering from it and would be willing to provide
>> needed
>> > > > assistance for fixing it.
>> > > >
>> > > > Thank you very much in advance,
>> > > >
>> > > > Marco van Tol
>> >
>> > --
>> > Better to remain silent and be thought a fool
>> > than to speak out and remove all doubt.
>> > - Abraham Lincoln
>> > _______________________________________________
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>> >
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>
>



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