Date: Thu, 22 Jan 2009 11:38:34 -0500 From: Dan Langille <dan@langille.org> To: Victor Balada Diaz <victor@bsdes.net> Cc: "Marat N.Afanasyev" <amarat@ksu.ru>, freebsd-stable@freebsd.org, Pete French <petefrench@ticketswitch.com> Subject: Re: interrupt storm on MSI IXP600 based motherboards Message-ID: <4978A10A.9060006@langille.org> In-Reply-To: <20090122071845.GF4881@alf.bsdes.net> References: <E1LNnFa-0003ze-7k@dilbert.ticketswitch.com> <49774BAE.3000809@ksu.ru> <20090122071845.GF4881@alf.bsdes.net>
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Victor Balada Diaz wrote: > On Wed, Jan 21, 2009 at 07:22:06PM +0300, Marat N.Afanasyev wrote: >>>> trouble with onboard re(4) was resolved in -CURRENT and -STABLE, but >>>> storms are not bound to ethernet only. storm may appear on any device. >>>> if any device generates enough interrupts rate, storm will arrive. >>> Yes, I just got another storm, on my ATA controller this time. Ah >>> well, so much for the idea of disabling unneeded devices! >>> >>> -pete. >>> >> it's a kind of magic, really. I built a new kernel with KDB and DDB and >> after 1 day, 13:15 I'm still waiting for storm to arrive. And I added >> hw.acpi.osname="Linux" to /boot/loader.conf. > > Try doing lots of IO and you will get the problem soon. You might > want to try: > > while true; do dd if=/dev/zero of=BAH bs=1M count=1024; sync; done FWIW, last night I changed the address of the comm port IO in my BIOS. Then I ran the Bacula regression test suite (lots of IO). For my machine, once the interrupt storm starts, it continues. I do not know if that happens to everyone. Since changing the address, I have had no interrupt storms. I have been running the above IO loop for about ten minutes. No storm yet (knock on wood). -- Dan Langille BSDCan - The Technical BSD Conference : http://www.bsdcan.org/ PGCon - The PostgreSQL Conference: http://www.pgcon.org/
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