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Date:      Tue, 17 Oct 2006 15:38:28 +0200
From:      Albert Shih <shih@math.jussieu.fr>
To:        Kris Kennaway <kris@obsecurity.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: em, bge, network problems survey.
Message-ID:  <20061017133828.GJ22684@math.jussieu.fr>
In-Reply-To: <20061005200552.GA80162@xor.obsecurity.org>
References:  <45244053.6030706@samsco.org> <20061005200552.GA80162@xor.obsecurity.org>

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 Le 05/10/2006 =E0 16:05:52-0400, Kris Kennaway a =E9crit
> 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.
>=20
> OK, next question, to all em users:
>=20
> If your em device is using a shared interrupt, and you are NOT
> experiencing timeout problems when using this device, please let me
> know:
>=20
> 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 inte=
rrupt
> irq24: ahd1                           15          0
> cpu0: timer                     10453509       1999
> Total                           10602158       2027
>=20
> 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
>=20
> 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.
>=20
Personnaly I've very lots of problem with my em0 card (Proliant ML 380)
I've lots of em0 watchdog problem (the interface disapeare) and I dont use
shared interrupt=20

[root@nfs3 ]# vmstat -i
interrupt                          total       rate
irq1: atkbd0                           2          0
irq4: sio0                         29520          2
irq6: fdc0                            87          0
irq15: ata1                           47          0
irq16: uhci0                    26848237       2063
irq17: bge0                      1881736        144
irq24: mpt0                           29          0
irq25: mpt1                           17          0
irq26: fxp0 fxp1                 2776380        213
irq48: isp0                      1537121        118
irq72: ciss0                      217837         16
irq76: em0                      25144932       1932
irq77: em1                       1818458        139
cpu0: timer                     25996358       1997
Total                           86250761       6628
[root@nfs3 ]#=20

Regards.


--
Albert SHIH
Universite de Paris 7 (Denis DIDEROT)
U.F.R. de Mathematiques.
7 i=E8me =E9tage, plateau D, bureau 10
Heure local/Local time:
Tue Oct 17 15:37:05 CEST 2006



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