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Date:      Tue, 2 Apr 2002 09:38:52 -0500 (EST)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Dag-Erling Smorgrav <des@ofug.org>
Cc:        Poul-Henning Kamp <phk@critter.freebsd.dk>, Marcel Moolenaar <marcel@FreeBSD.org>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/ia64/ia64 ia64dump.c
Message-ID:  <Pine.NEB.3.96L.1020402093647.20010Z-100000@fledge.watson.org>
In-Reply-To: <xzp663ai5rw.fsf@flood.ping.uio.no>

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On 2 Apr 2002, Dag-Erling Smorgrav wrote:

> Poul-Henning Kamp <phk@critter.freebsd.dk> writes:
> > COOL!  Thanks a LOT!
> 
> *not* cool.  We can't have every architecture team invent their own dump
> format, or savecore(8) will be hell to maintain.  Please don't introduce
> any more breakage; I'll take care of this once I'm done with the mutex
> profiling code. 

As long as no one expects the dump format to be static, we should have no
problem as we migrate to desDUMP.  What are the features missing from our
older dump formats that are required -- the ability to sparsely store
chunks of address space, etc?

(Note: it would be very cool to be able to swap a hard disk from a sparc64
box to an i386 box, and have savecore dump the core from it to a system
dump, then have cross-compiled gdb debug it.  Of course, we have other
problems before then -- are our disk labels endian-aware?)

Robert N M Watson             FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org      NAI Labs, Safeport Network Services



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