Date: Tue, 21 Dec 2004 10:20:35 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: sean@mcneil.com Cc: current@freebsd.org Subject: Re: reboot without any info Message-ID: <20041221.102035.11997056.imp@bsdimp.com> In-Reply-To: <1103489622.5226.6.camel@server.mcneil.com> References: <1103434515.1158.10.camel@server.mcneil.com> <20041219150157.O19917@alpha.siliconlandmark.com> <1103489622.5226.6.camel@server.mcneil.com>
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In message: <1103489622.5226.6.camel@server.mcneil.com>
Sean McNeil <sean@mcneil.com> writes:
: I think everyone has hardware fault on the brain right now. Please note
: that the system works perfectly - even under extreme load - until the
: moment I run totem in the debugger. Then it is instant. I would never
: consider this behavior as hardware related.
In that case, you may be stuck with debugging the debugging process.
adding printfs to the perimeter (with a serial console), and gradually
worming your way in. Not all printfs happen in some cases, so there
may be some abiguity that may drive you nuts...
Chances are the kernel/debugger is restoring state bogusly, and that
we're jumping to that bogus state, causing the reset (most likely in
kernel mode).
Warner
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