RE: 2.6.13-rc3 ACPI regression and hang on x86-64

[Mikael Pettersson <mikpe@csd.uu.se>]

On Thu, 14 Jul 2005 15:23:52 -0400, Brown, Len wrote:
>>acpi_ec-0217 [04] acpi_ec_leave_burst_mo: ------->status fail
>>
>>on the console, and then the machine is hung hard.
>
>2.6.13-rc3 x86_64 failed, but 
>2.6.13-rc2 x86_64 worked
>
>And both of these revisions in the i386 kernel still work?

With the i386 kernel, 2.6.13-rc2 works perfectly.
With the i386 kernel, 2.6.13-rc3 mostly works, but
it fails to detect the CPU's C2 state.

>Is it possible for you to test the latest ACPI patch?
>http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/patches/release/
>2.6.13/

I was going to, but as it was for -rc2 not -rc3 I decided to
try Venkatesh Pallipadi's C-state FADT regression patch first.
<http://marc.theaimsgroup.com/?l=linux-kernel&m=112135903100520&w=2>
Success! That solved all my ACPI issues with -rc3.

"Yu, Luming" wrote:
>> on the console, and then the machine is hung hard.
>If you didn't press that key,   the machine still hung?

No it worked except for having no power management and an
unusable console due to ACPI having reduced the brightness.

/Mikael
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