Date: Thu, 24 Aug 2006 09:36:58 -0700 From: Nate Lawson <nate@root.org> To: Kevin Oberman <oberman@es.net> Cc: Peter Jeremy <peterjeremy@optushome.com.au>, freebsd-acpi@freebsd.org Subject: Re: Powerd makes computer hang Message-ID: <44EDD5AA.2030107@root.org> In-Reply-To: <20060824160755.3847245056@ptavv.es.net> References: <20060824160755.3847245056@ptavv.es.net>
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Kevin Oberman wrote: >> Date: Thu, 24 Aug 2006 16:47:38 +1000 >> From: Peter Jeremy <peterjeremy@optushome.com.au> >> Sender: owner-freebsd-acpi@freebsd.org >> >> >> --jRHKVT23PllUwdXP >> Content-Type: text/plain; charset=us-ascii >> Content-Disposition: inline >> Content-Transfer-Encoding: quoted-printable >> >> I've just upgraded my HP nx6125 to an up-to-date -current and >> my powerd(8) emulator[1] still wedges it solid. >> >> [1] A perl script that pseudo-randomly changes dev.cpu.0.freq > > Also, I think that debug.cpufreq.lowest can be used to limit the low > speed and avoid the ones that cause hangs. That, and if you find the problem driver, you can just disable it individually. example: hint.p4tcc.0.disabled="1" If that doesn't work, try disabling acpi_throttle the same way. Figuring out which cpufreq drivers are attached on your system would be a good start (dmesg | grep cpu). All other cpufreq drivers will continue to function just fine. That's why the title of this message is misleading. cpufreq is a framework, not a single driver. It's like saying "PCI makes my system hang". -- Nate
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