Date: Fri, 1 Sep 2006 15:15:24 +0100 (BST) From: Robert Watson <rwatson@FreeBSD.org> To: Jos Backus <jos@catnook.com> Cc: freebsd-current@freebsd.org Subject: Re: Retrieving info from panics while in X Message-ID: <20060901151404.C18193@fledge.watson.org> In-Reply-To: <20060829170124.GA1818@lizzy.catnook.local> References: <20060829170124.GA1818@lizzy.catnook.local>
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On Tue, 29 Aug 2006, Jos Backus wrote:
> I was wondering if anybody has any plans to address the issue of retrieving
> panic/debugging information about crashes happening while X is running.
>
> For example, -current has been broken for me for several days now; it will
> reliably crash within an hour or so while the main thing I'm doing is
> running Opera under KDE. But without X, no crash. How does one obtain panic
> information in this situation?
The typical approaches are:
(1) Set up a serial console and use that for debugger work; alternatively, use
a firewire console.
(2) Set up the system not to entre the debugger, but just to panic and dump
core.
I prefer the first of those options, myself, since I find the DDB debugging
environment extremely useful, especially since it's quite aware of things like
the kernel lock environment, etc.
Robert N M Watson
Computer Laboratory
University of Cambridge
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