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Date:      Tue, 21 Sep 2010 10:59:29 -0700
From:      Matthew Jacob <mj@feral.com>
To:        John Baldwin <jhb@freebsd.org>
Cc:        svn-src-head@freebsd.org, mdf@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, Andriy Gapon <avg@freebsd.org>
Subject:   Re: svn commit: r212964 - head/sys/kern
Message-ID:  <4C98F281.2080806@feral.com>
In-Reply-To: <201009211347.28800.jhb@freebsd.org>
References:  <201009211507.o8LF7iVv097676@svn.freebsd.org> <201009211250.40704.jhb@freebsd.org> <4C98E324.8090803@feral.com> <201009211347.28800.jhb@freebsd.org>

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  FWIW, I think that this would be a *good* thing. One of the problems 
with panic is that you can't really reset the state of the world, so 
most kernel services are not reliable. Unfortunately, mechanisms for 
preserving forensics for debug require some kernel services.
>> Seems to me you are backing into interesting territory here- getting a
>> bit more like Solaris.
>>
>> If you *do* do this, then you really *do* need to stop all other CPUs
>> when you panic, or else it's likely you'll double panic more often than not.
> Yes, I don't dispute this.
>




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