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Date: Wed, 22 Jun 2011 19:09:13 +0300
From: Andriy Gapon <avg@FreeBSD.org>
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Subject: stop scheduler in panic context
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I would like to present the following diff for review and discussion:
http://people.freebsd.org/~avg/stop_scheduler_on_panic.diff

The idea is to stop scheduler in a panic context and to provide a special
environment for the only running thread, the one that called panic(9).

I tried to make this diff as minimal as possible, it doesn't include changes that
I consider to be useful improvements and [even] bug fixes, but which generated
controversy in non-public discussions.

If there is no negative feedback within next few days, then I plan to post the
patch to current@ to solicit some testing.  I will definitely wait for positive
feedback before committing this change.  I hope that I will be able to sneak it
into the 9 release (unless there are objections to this).

Thank you!
-- 
Andriy Gapon