Date: Tue, 27 Jan 2004 19:50:55 -0500 (EST) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Tom Ponsford <tponsford@theriver.com> Cc: freebsd-alpha@freebsd.org Subject: Re: Same problem, new year 2100A machine check Message-ID: <16407.1903.816168.318651@grasshopper.cs.duke.edu> In-Reply-To: <40143372.8090207@theriver.com> References: <4011B6F6.5040306@theriver.com> <40143372.8090207@theriver.com>
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Tom Ponsford writes: > It DOES NOT boot: > > FreeBSD 4.xx MP kernel -machine check as it probes PCI/EISA bus Interesting. FreeBSD 4 never supported MP on alpha. > FreeBSD 5.0, 5.2 uniprocessor kernel or MP kernel--machine check as it probes Here are some things to do/try. 1) Build a kernel with ddb and get a stack trace. When the machine crashes and you land at the "db>" prompt, type 'tr' This might not be incredibly helpful because machine checks are not synchronous, but it may narrow things down a little bit. 2) Disable all but CPU0 from the SRM console. There's a bitmask you can set from SRM (I don't remember off the top of my head what it is, but its probably set to 0xfff now). Drew
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