Date: Mon, 14 Sep 1998 20:25:11 +0800 From: Peter Wemm <peter@netplex.com.au> To: Poul-Henning Kamp <phk@critter.freebsd.dk> Cc: Andrzej Bialecki <abial@FreeBSD.ORG>, cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/i386 machdep.c Message-ID: <199809141225.UAA10464@spinner.netplex.com.au> In-Reply-To: Your message of "Mon, 14 Sep 1998 13:46:12 %2B0200." <24038.905773572@critter.freebsd.dk>
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Poul-Henning Kamp wrote:
> In message <199809141147.EAA18800@freefall.freebsd.org>, Andrzej Bialecki wri
te
> s:
> >abial 1998/09/14 04:47:41 PDT
> >
> > Modified files:
> > sys/i386/i386 machdep.c
> > Log:
> > This implements retrieving the contents of message buffer via sysctl(3)
> > as "machdep.msgbuf". It's needed in case of using stripped kernels, where
> > normal dmesg (which has to use kvm) doesn't work.
> >
> > The buffer is unwound, meaning that the data will be linear, possibly
> > with some leading NULLs.
>
> Now dmesg should be changed to use this interface, so that one less
> program needs access to /dev/kmem...
I've found dmesg's ability to extract the msgbuf from a crashdump to be
invalueable.. ie: "dmesg -N kernel.41 -M vmcore.41". It would be a shame
to loose this ability without some other replacement. The same goes for
ps(1).
Cheers,
-Peter
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