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Date:      Thu, 5 Oct 2006 16:05:52 -0400
From:      Kris Kennaway <kris@obsecurity.org>
To:        Scott Long <scottl@samsco.org>
Cc:        freebsd-stable@freebsd.org, Kris Kennaway <kris@obsecurity.org>
Subject:   Re: em, bge, network problems survey.
Message-ID:  <20061005200552.GA80162@xor.obsecurity.org>
In-Reply-To: <45244053.6030706@samsco.org>
References:  <45244053.6030706@samsco.org>

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On Wed, Oct 04, 2006 at 05:14:27PM -0600, Scott Long wrote:
> All,
>=20
> I'm seeing some patterns here with all of the network driver problem=20
> reports, but I need more information to help narrow it down further.
> I ask all of you who are having problems to take a minute to fill
> out this survey and return it to Kris Kennaway (on cc:) and myself.
> Thanks.
>=20
> 1. Are you experiencing network hangs and/or "timeout" messages on the=20
> console?  If yes, please provide a _brief_ description of the problem.

OK, next question, to all em users:

If your em device is using a shared interrupt, and you are NOT
experiencing timeout problems when using this device, please let me
know:

dalki# vmstat -i
interrupt                          total       rate
irq4: sio0                          2071          0
irq6: fdc0                            10          0
irq14: ata0                           47          0
irq20: ahd0                        21755          4
irq23: em0                        124751         23 <-- not a shared interr=
upt
irq24: ahd1                           15          0
cpu0: timer                     10453509       1999
Total                           10602158       2027

tyan# vmstat -i
interrupt                          total       rate
irq14: ata0                           58          0
irq16: em0 fxp1                   332832        851 <-- shared interrupt
irq18: fxp0                          973          2
irq19: atapci1                    132883        339
cpu0: timer                       774308       1980
cpu1: timer                       777136       1987
Total                            2018190       5161

So far all of the em problems I have seen involve shared interrupts,
and conversely all em systems I have seen that do not have timeout
problems are not shared.

Kris


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