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From: Mikael Pettersson <>
Subject: RE: PROBLEM: ACPI hangs when invoked from keyboard
Date: Tue, 29 Jul 2003 13:07:02 +0200 (MEST)	[thread overview]
Message-ID: <> (raw)

On Tue, 29 Jul 2003 01:06:08 -0500, Warren Turkal wrote:
>Grover, Andrew wrote:
>> This isn't ACPI, it's because 2.5.74+ force the APIC enabled.
>You are correct, and here is my addition to this bug report.
>At this point, I relized that I had been compiling these
>kerenels without SMP, which is not what I did when I
>noticed the bug. Therefor, it is an SMP-kernel-only bug.
>I have a 1.9GHz Pentium 4M. My understanding is that it
>Therefore, the breaking patch is the changeset from svn
>revion 11314 to 11315, which is reproduced below,
>including the patch comment.
>patch comment:
>wt@braindead:/usr/src/linux-trunk$ svn log -r 11315
>rev 11315:  mikpe | 2003-06-24 14:50:23 -0500 (Tue, 24 Jun 2003) | 17 lines
>[PATCH] enable local APIC on P4
>Either there is a bug with supporting my type of APIC or my APIC
>must have a bug and is disabled by the BIOS for a reason. Either
>my hardware should be blacklisted or the old behavior should be
>AFAIK, I have an Intel 845 chipset. I don't know what other info
>is needed for blacklisting.

The bug is not in the hardware but in the BIOS code.
I'm planning a patch to revert P4s to a safe default, it'll
be posted on LKML shortly.

Out of curiosity, what make & model is your laptop?


             reply	other threads:[~2003-07-29 11:07 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-29 11:07 Mikael Pettersson [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-07-29 10:38 Mikael Pettersson
2003-07-28 23:04 Grover, Andrew
2003-07-29  6:06 ` Warren Turkal
2003-07-26 13:04 Jacob Hallén

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