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Date: Mon, 30 Jul 2012 16:04:15 +0100
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From: Attilio Rao <attilio@freebsd.org>
To: Andriy Gapon <avg@freebsd.org>
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Cc: Konstantin Belousov <kostikbel@gmail.com>,
	Davide Italiano <davide@freebsd.org>, src-committers@freebsd.org,
	svn-src-projects@freebsd.org
Subject: Re: svn commit: r238907 - projects/calloutng/sys/kern
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On 7/30/12, Andriy Gapon <avg@freebsd.org> wrote:
> on 30/07/2012 17:56 Attilio Rao said the following:
>> More explicitly, I think such combination TDP_NOSLEEPING +
>> TDP_NOBLOCKING (name invented) should be set on entering the interrupt
>> context, not only related to this part of callouts. This would be a
>> very good help for catching buggy situations.
>
> Something very tangential.  I think it would also be nice to check if a
> thread has
> any(?) locks held when returning to userland.

This happens already for INVARIANTS case, with td_locks counters.
In the !INVARIANTS case, this doesn't happen because you don't want to
add the burden to bump td_locks for the fast case and I think it is a
good approach.

Attilio


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