The following reply was made to PR amd64/157386; it has been noted by GNATS.
From: Andriy Gapon <a...@icyb.net.ua> To: David Graham <dgra...@unthinkable.org>, bug-follo...@freebsd.org Cc: Subject: Re: amd64/157386: [powerd] Enabling powerd(8) with default settings on Intel Xeon-E3 results in system freeze Date: Tue, 31 May 2011 09:08:48 +0300 on 29/05/2011 17:19 David Graham said the following: > On 05/29/11 01:59, Andriy Gapon wrote: >> >> Can you provide output of the dev.cpu sysctl and a snippet of devinfo >> command >> output that shows devices under cpu0? >> > Hi Andriy, > > ev.cpu.0.%desc: ACPI CPU > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_SB_.CP00 > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.freq: 2654 > dev.cpu.0.freq_levels: 2654/-1 2322/-1 1990/-1 1658/-1 1327/-1 995/-1 663/-1 > 331/-1 > dev.cpu.0.cx_supported: C1/0 > dev.cpu.0.cx_lowest: C1 > dev.cpu.0.cx_usage: 100.00% last 2224us > [snip] > cpu0 > acpi_throttle0 > cpufreq0 > acpi_timer0 I'd say that the problem is because of acpi_throttle driver, which is kind of dangerous and useless driver because of how it regulates frequency. I usually disable it on my Intel machines via: hint.acpi_throttle.0.disabled=1 I am a bit surprised that acpi_perf and (dependent on it) est drivers haven't attached. -- Andriy Gapon _______________________________________________ freebsd-amd64@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 To unsubscribe, send any mail to "freebsd-amd64-unsubscr...@freebsd.org"
