Date: Wed, 3 Mar 2010 09:30:05 GMT From: g <annona2@gmail.com> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/140391: [hang] powerd(8) freezes computer on Phenom II computer Message-ID: <201003030930.o239U59F066258@freefall.freebsd.org>
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The following reply was made to PR amd64/140391; it has been noted by GNATS. From: g <annona2@gmail.com> To: bug-followup@FreeBSD.org, 3edcft654r5@gmail.com Cc: Subject: Re: amd64/140391: [hang] powerd(8) freezes computer on Phenom II computer Date: Wed, 3 Mar 2010 18:02:10 +0900 I'm an author of hwpstate.c . sorry for inconvenience. A mixture of cpufreq with acpi_throttle and hwpstate will produce very low freq like 100MHz. So I think there are two workaround candidates. 1) seting debug.cpufreq.lowest seeing sysctl dev.cpu.0.freq_levels output, do step by step setting the frequency as follows. sysctl dev.cpu.0.freq=XXXX sysctl dev.cpu.0.freq=XXXX sysctl dev.cpu.0.freq=XXXX sysctl dev.cpu.0.freq=YYY sysctl dev.cpu.0.freq=ZZZ and at the point ZZZ where the err 6 returned,set the threshold. sysctl debug.cpufreq.lowest=YYY 2) disable acpi_throttle. disabling acpi_throttle maybe solve this problem. hint.acpi_throttle.0.disabled="1" in /boot/loader.conf
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