Date: Mon, 2 Dec 1996 07:49:58 -0500 (EST) From: Mario Donato Marino <mario@lsi.usp.br> To: Erich Boleyn <erich@uruk.org> Cc: Steve Passe <smp@csn.net>, smp@freebsd.org Subject: Re: SMP-current hang problems. Message-ID: <Pine.SUN.3.95.961202074920.11518A-100000@sofia> In-Reply-To: <E0vTu1B-000831-00@uruk.org>
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On Sat, 30 Nov 1996, Erich Boleyn wrote: > > Steve Passe <smp@csn.net> writes: > > > we have decided to more or less freeze development till we figure out > > the "system hang" problem with the latest code. If you have one > > of the systems that hangs anywhere in the area of: > > > > SMP: Idle procs online, starting an AP! > > SMP: AP CPU #1 LAUNCHED!! Starting Scheduling... > > SMP: TADA! CPU #1 made it into the scheduler!. > > SMP: All 2 CPU's are online! > > ... > > Well, I wanted to try an unmunged syscons, so I took the existing > SMP source tree and tried it with and without APIC_IO. (My test box is > a 4-CPU Pentium Pro with PCI SCSI and EISA network cards) What is your machine ? Is it a AMI Goliath ? > > Without APIC_IO, I got messages like the above for all 3 of the other CPUs > in my box. Pretty cool! Syscons was screwed up here, so I don't think > it is just an "APIC_IO" problem. I could bang on the keyboard for a long > time and it kept going. > > With APIC_IO, I got one message like the above for "CPU #3", but after > the "Starting Scheduling..." part, it said "SMP: freezing CPU #3", then > no more SMP CPU booting messages. Syscons was screwed up here in > apparently the exact same fashion. If I banged on the keyboard too much, > it would lock up. > > I think I'm more interested in fixing syscons than regressing it and > a bunch of other files, perhaps with unpredictable results. > > More later. (is there anything specific I should try?) > > -- > Erich Stefan Boleyn \_ E-mail (preferred): <erich@uruk.org> > Mad Genius wanna-be, CyberMuffin \__ (finger me for other stats) > Web: http://www.uruk.org/~erich/ Motto: "I'll live forever or die trying" >
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