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Date:      Fri, 10 Sep 2010 19:11:14 +0300
From:      Alexander Motin <mav@FreeBSD.org>
To:        "Thomas E. Spanjaard" <tgen@deepbone.net>,  FreeBSD-Current <freebsd-current@freebsd.org>
Subject:   Re: Eventtimers b0rking w/ math/atlas
Message-ID:  <4C8A58A2.9000405@FreeBSD.org>
In-Reply-To: <mailpost.1284133396.4477712.13462.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw>
References:  <4C8A4F37.6000103@FreeBSD.org> <mailpost.1284133396.4477712.13462.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw>

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Thomas E. Spanjaard wrote:
> On 09/10/2010 15:31, Alexander Motin wrote:
>> It is reported deadlock between event timers and some IPI senders, like
>> TLB invalidation, during switching to/from profiling clock rate. In
>> forthcoming version of event timer patch this problem should not happen.
>> You can get latest version of the patch here:
>> http://people.freebsd.org/~mav/timers_oneshot13.patch
> 
> I'll try your patch as well after math/atlas has finished building. I
> assume it applies cleanly to head, and this one is most likely to end up
> being committed?

This version should be good enough. I am running it on all I have. Now I
need to optimize some surrounding things and the next version has a good
chances to get into HEAD soon.

-- 
Alexander Motin



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