Date: Thu, 25 Sep 2003 11:48:29 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Don Lewis <truckman@FreeBSD.org> Cc: current@freebsd.org Subject: Re: ThinkPad R40 hangs during ACPI power down Message-ID: <20030925113044.U59820@root.org>
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> I've got an IBM ThinkPad R40 that hangs when I do a "shutdown -p". It
> wedges after printing "Powering system off using ACPI".
>
> Attempting to use 'acpiconf -s" to suspend produces similar hangs.
Your system is halting correctly but powering off is failing. A cursory
glance at your ASL shows nothing particularly amiss. It's very similar to
my laptop (T23).
> I tried compiling a version of the kernel with the ACPI_DEBUG option
> listed in NOTES, but buildkernel dies
This was fixed on Sept 21 so cvsup and recompile. Set hw.acpi.verbose=1
in loader.conf to get more messages.
To debug this, please boot a newer kernel with the ACPI_DEBUG option with
the following options in loader.conf:
debug.acpi.layer="ACPI_ALL_COMPONENTS ACPI_ALL_DRIVERS"
debug.acpi.level="ACPI_LV_FUNCTIONS"
You'll get spammed with way too many messages on boot but just ignore
these. Then do shutdown -p and log the printed messages (hopefully you
have a serial console).
I'll map the debugging tunables to a sysctl since it would be better if
you could just set this just before testing rather than for the full boot.
-Nate
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