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To: Jun Su <csujun@gmail.com>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Wed, 15 Dec 2004 09:44:08 +0800."
             <cd4370cf04121417446c96319f@mail.gmail.com> 
Date: Wed, 15 Dec 2004 08:51:21 +0100
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cc: arch@freebsd.org
cc: delphij@freebsd.org
Subject: Re: Propose for Several Dump types 
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In message <cd4370cf04121417446c96319f@mail.gmail.com>, Jun Su writes:
>On Tue, 14 Dec 2004 08:48:44 +0100, Poul-Henning Kamp
><phk@phk.freebsd.dk> wrote:
>> In message <cd4370cf04121323433255da9d@mail.gmail.com>, Jun Su writes:
>> 
>> >MiniDump
>> >=======
>> >In a minidump, Register info, plus the crash stack is enough.
>> 
>> Make it an EVENTHANDLER() and dump it in ascii format.
>                                                       ^^^^^^^^^^^^
>Don't think the ascii format is a good choose. We can only dump the
>information like the ones we can get in the KDB. My propose is storing
>the pages that the stack point is in. Then we can get more useful
>stack in the userland with the kernel file and kernel symbol.

An ascii format summary is a _great_ format because people can email
us it without knowing anything else.  We could in fact make it
a /etc/rc.conf tunable:  "send_panic_reports=YES" and we would
receive it in email whenever a crash occured.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.