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Date: Tue, 20 Sep 2005 16:59:32 +0200
To: Maxim Maximov <mcsi@mcsi.pp.ru>
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From: Bruno Ducrot <ducrot@poupinou.org>
Cc: acpi@freebsd.org
Subject: Re: Hard hang with powerd
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On Tue, Sep 20, 2005 at 06:04:40PM +0400, Maxim Maximov wrote:
> Bruno Ducrot wrote:
> >On Tue, Sep 20, 2005 at 04:35:24PM +0400, Maxim Maximov wrote:
> >
> >>Hi, all.
> >>
> >>	I've got hard hangs with latest CURRENT in a few seconds after 
> >>	enabling powerd. Here's loader.conf:
> >>
> >># cat /boot/loader.conf
> >>hw.psm.synaptics_support=1
> >>debug.mpsafevfs=1
> >>acpi_perf_load="YES"
> >>cpufreq_load="YES"
> >>debug.acpi.disabled="sysres"
> >>bcmwl5_sys_load="YES"
> >>
> >>	What else can I do to help debug it?
> >>
> >
> >
> >The 2 logical CPUs need to set the same MSRs at the same time,
> >but if the second one is forced to be idle, I'm not sure if p4tcc will
> >work fine.
> >
> >Therefore, I'm wondering if this hard hang happens with a SMP kernel
> >and hyperthreading is enabled, or if this happens with a UP kernel.
> >
> 
> Yes, kernel is SMP one.
> 
> # sysctl machdep.hyperthreading_allowed
> machdep.hyperthreading_allowed: 1
> 

It's weird.  Could you please try with a kernel without SMP for
testing purpose?

-- 
Bruno Ducrot

--  Which is worse:  ignorance or apathy?
--  Don't know.  Don't care.