Date: Thu, 17 Sep 2009 11:16:53 +0200 From: Attilio Rao <attilio@freebsd.org> To: "C. C. Tang" <hiyorin@gmail.com> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org>, Dan Naumov <dan.naumov@gmail.com> Subject: Re: 7.2-release/amd64: panic, spin lock held too long Message-ID: <3bbf2fe10909170216u29d994aj55c21efdfbc26ba5@mail.gmail.com> In-Reply-To: <4AB1A838.2040406@gmail.com> References: <cf9b1ee00907061812r3da70018i1c8d8d12bb038a80@mail.gmail.com> <3bbf2fe10909121432x7bd4f7es497e9431c4e520d6@mail.gmail.com> <cf9b1ee00909121502v66566b46p754ed2f2e549555@mail.gmail.com> <4AB1A838.2040406@gmail.com>
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2009/9/17 C. C. Tang <hiyorin@gmail.com>: >>> Dan, is that machine equipped with Hyperthreading? >>> >>> Attilio >> >> Yes. It's an Intel Atom 330, which is a dualcore CPU with HT (4 cores >> visible in "top" as a result) > > Yes, mine is also Atom 330. > > I cannot test the patch because my machine is also in production now. But I > have tested it with hyperthreading. > powerd with HyperThreading -> spin lock hold too long > powerd without HyperThreading -> no problem > no powerd with/without HyperThreading -> no problem But these are with the last patch I posted in? (specifically, for 7.2: http://www.freebsd.org/~attilio/sched_ule.diff ) So with the patch in, powerd and hyperthreading on you still get a deadlock? Attilio -- Peace can only be achieved by understanding - A. Einstein
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