From owner-freebsd-hackers  Wed Oct 31  1:20:17 2001
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Date: Wed, 31 Oct 2001 01:11:07 -0800
From: Julian Elischer <julian@elischer.org>
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To: Mark Santcroos <marks@ripe.net>
Cc: "Andrew R. Reiter" <arr@watson.org>, hackers@FreeBSD.ORG
Subject: Re: debugging question
References: <Pine.NEB.3.96L.1011030171515.64915A-100000@fledge.watson.org> <Pine.BSF.4.21.0110301537590.26174-100000@InterJet.elischer.org> <20011031092035.A573@laptop.6bone.nl>
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Mark Santcroos wrote:
> 
> Thats what I already said in my email :)
> 
> I was hoping that there is some way to dump the codepath of the kernel.
> 
> Or is it maybe possible from ddb to move the context of a certain process
> and trace from there?

tr PID
gives you teh stack of that PID

then set a breakpoint in a location that you know it will go through
(e.g. one of the return addresses given in the trace) and then 
continue.

> 
> Mark
> 
> ps. I have narrowed it down already a bit more and hope to come with a bug
> report on -current in the coming days.
> 
> On Tue, Oct 30, 2001 at 03:38:45PM -0800, Julian Elischer wrote:
> > when the system is looping, hit <CTL><ALT><ESC>
> > to drop into the debugger.
> >
> > On Tue, 30 Oct 2001, Andrew R. Reiter wrote:
> >
> > > On Tue, 30 Oct 2001, Mark Santcroos wrote:
> > >
> > > :How can I see in what piece of the kernel it is looping?
> > > :(I know about where it is, but not exactly)
> > > :
> > >
> > > Use ddb to set a break -- you may need to do this upon boot (boot -d)
> > >
> > > *-------------.................................................
> > > | Andrew R. Reiter
> > > | arr@fledge.watson.org
> > > | "It requires a very unusual mind
> > > |   to undertake the analysis of the obvious" -- A.N. Whitehead
> > >
> > >
> > > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > > with "unsubscribe freebsd-hackers" in the body of the message
> > >
> >
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-hackers" in the body of the message
> 
> --
> Mark Santcroos                          RIPE Network Coordination Centre
> http://www.ripe.net/home/mark/          New Projects Group/TTM
> 
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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-- 
+------------------------------------+       ______ _  __
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|  /       \ julian@elischer.org     +------>x   USA    \ a very strange
| (   OZ    )                                \___   ___ | country !
+- X_.---._/    presently in San Francisco       \_/   \\
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