Date: Sun, 20 Aug 2006 17:57:02 +0400 From: Boris Samorodov <bsam@ipt.ru> To: Peter Jeremy <peterjeremy@optushome.com.au> Cc: freebsd-acpi@freebsd.org, Gleb Smirnov <glebius@freebsd.org> Subject: Re: Powerd makes computer hang Message-ID: <94951745@bsam.ru> In-Reply-To: <20060820110545.GG1066@turion.vk2pj.dyndns.org> (Peter Jeremy's message of "Sun, 20 Aug 2006 21:05:45 %2B1000") References: <f67067e80608192300g7474bc76nc1c87b523bd807ea@mail.gmail.com> <20060820110545.GG1066@turion.vk2pj.dyndns.org>
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On Sun, 20 Aug 2006 21:05:45 +1000 Peter Jeremy wrote: > On Sun, 2006-Aug-20 16:00:33 +1000, Tim Dettloff wrote: > >I have installed FreeBSD 6.1-RELEASE on my Compaq Presario 2656AU > >laptop, but it occasionally hangs. I traced the problem to powerd so I > >made a script that kept changing the clock rate by setting the sysctl > >dev.cpu.0.freq. This script normally makes the computer hang within 10 > >seconds or so. > Sam Leffler noticed this on his nx6125 last December and I also > found the same problem on my nx6125 in early February. It looks > like there's a race condition in the BIOS code. > >Any Ideas? > My current solution is to manually change the speed using sysctl. > This doesn't seem to trigger the problem quite as often (though your > laptop seems far more sensitive than mine). I would also be interested > in any real solutions. Glebius@ (CCed) sent me a patch against 6-STABLE which solves the problem. However, I don't know if the patch was committed. WBR -- Boris Samorodov (bsam) Research Engineer, http://www.ipt.ru Telephone & Internet SP FreeBSD committer, http://www.FreeBSD.org The Power To Serve
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