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Date: Tue, 22 Jul 2003 17:40:12 -0400 (EDT)
From: "Adam Migus" <adam@migus.org>
To: "Terry Lambert" <tlambert2@mindspring.com>
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cc: freebsd-hackers@freebsd.org
cc: Robert Watson <rwatson@freebsd.org>
Subject: Re: running 5.1-RELEASE with no procfs mounted (lockups?)
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Terry Lambert said:
> The problem is that ktrace/kdump rendesvous at a file;
> truss does
> not, so it has some capabilities that ktrace does not.
> In some
> circumstances (e.g. a system crash, where kdump doesn't
> get a
> chance to get at the file, because it's "cleaned up"
> and not
> even fully written, when it's not "cleaned up") ktrace
> loses
> utterly.
>

Would something like:

live_ktrace() { local _kf="`mktemp -t ktrace.$$`";
ktrace -p $1 -f $_kf; kdump -lf $_kf; rm -f $_kf; }

do what you want?

-- 
Adam Migus - Research Scientist
Network Associates Laboratories (http://www.nailabs.com)