Date: Wed, 27 Sep 2006 17:59:04 +0200 From: Oliver Brandmueller <ob@e-Gitt.NET> To: freebsd-stable@freebsd.org Subject: Re: 6.2 SHOWSTOPPER - em completely unusable on 6.2 Message-ID: <20060927155904.GM22229@e-Gitt.NET> In-Reply-To: <20060927155553.GB14563@icarus.home.lan> References: <451A1375.5080202@gneto.com> <20060927071538.GF22229@e-Gitt.NET> <451A4189.5020906@samsco.org> <20060927152824.GJ22229@e-Gitt.NET> <20060927155553.GB14563@icarus.home.lan>
next in thread | previous in thread | raw e-mail | index | archive | help
--nO3oAMapP4dBpMZi Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, On Wed, Sep 27, 2006 at 08:55:53AM -0700, Jeremy Chadwick wrote: > > The SMBus Interface is not used at all (it's not even really usable).= =20 > > Anyway, as soon as I unload the ichsmb module I cannot triger the=20 > > problem anymore. If I load it again, the problem cann again be triggere= d=20 > > by a buildworld. Statistical relevance: I did 4 buildworlds, alternatin= g=20 > > the load/unload of ichsmb - both times with ichsmb loaded I saw 3=20 > > watchdog timeouts during the buildworld was running, while ichsmb was= =20 > > not loaded I did not see a single watchdog timeout. The use of the=20 > > interface was around the same during all the time (constant NFS traffic= =20 > > of around 1-2 MBit/s). >=20 > Interesting find. For what it's worth -- I too load the appropriate > smbus drivers on the system with the "em0 problem" (loading smbus and > ichsmb). That system is a single processor / single core system, with > HT disabled in the BIOS (which doesn't matter since FreeBSD disables > it anyways). Kernel is non-SMP. Only reason I mention this is: >=20 > > The UP/SMP idea seems to be only of interest, because on an UP machine= =20 > > it's more likely to share interrupts than on SMP machines, it has=20 > > nothing to do with the fact of UP or SMP itself. I don't think it has to especially with ichsmb here, but only with the=20 fact, that ichsmb is for me exactly the thing that shares the interrupt=20 with the em interface that shows the problems. - Oliver --=20 | Oliver Brandmueller | Offenbacher Str. 1 | Germany D-14197 Berlin | | Fon +49-172-3130856 | Fax +49-172-3145027 | WWW: http://the.addict.de/ | | Ich bin das Internet. Sowahr ich Gott helfe. | | Eine gewerbliche Nutzung aller enthaltenen Adressen ist nicht gestattet! | --nO3oAMapP4dBpMZi Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFGp/HiqtMdzjafykRAtVfAKCZUvxwJ1YqejUCBzK7MnPcXpMG2wCfXFD3 SosjpQ/DKarf/xPkMfV7xH8= =WaBK -----END PGP SIGNATURE----- --nO3oAMapP4dBpMZi--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20060927155904.GM22229>