Date: Tue, 27 Jul 2010 14:38:52 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-geom@FreeBSD.org Subject: Re: Hyperactive g_event thread Message-ID: <27237.1280241532@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 27 Jul 2010 15:50:33 %2B0300." <4C4ED619.7050305@FreeBSD.org>
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In message <4C4ED619.7050305@FreeBSD.org>, Alexander Motin writes: >Poul-Henning Kamp wrote: >I have already removed alike timeouts on up/down threads and it indeed >was safe there. But are you really sure about this specific case? Cause >I'm not. Up/down threads using msleep and checking lack of work after >dropping/grabbing lock. Event thread instead does several tasks, drops >lock few times between them and uses tsleep(). I would say there should >be a bunch of race conditions. Quite likely, I didn't say it would be a trivial thing to remove that workaround :-) -- 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.
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