From: Ernst Herzberg <earny@net4u.de>
Subject: Re: 2.6.19-rc4: known unfixed regressions (v3)
Date: Tue, 7 Nov 2006 03:17:34 +0100
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On Sunday 05 November 2006 07:48, Adrian Bunk wrote:
> ...
> Subject    : ThinkPad R50p: boot fail with (lapic && on_battery)
> References : http://lkml.org/lkml/2006/10/31/333
> Submitter  : Ernst Herzberg <earny@net4u.de>
> Status     : problem is being debugged

Update:

2.6.19-rc4-git11 does _not_ fix the problem.

But now it doesn't matter if Cardbus/PCMCIA is compiled in or not.

What also matters is a setting in the BIOS:

If i set instead of

Power -> =

   SpeedStep ->
      Mode for AC -    "Max Performance"
      Mode for Battery "Max Battery"

to

Power -> =

   SpeedStep ->
      Mode for AC -    "Max Battery"
      Mode for Battery "Max Performance" =


he _does_ boot from battery but also on AC...

Also the problem is now(?) not very reliable. Sometimes the boot is success=
ful =

even on battery and then the laptop works without a glitch.
This makes it not easier to isolate the problem.

About the reverts of some patches: I'm not, lets say it carefull, an very   =

experienced git user;-) =

What i get is:

# git-revert -n cf4c6a2f27f5db810b69dcb1da7f194489e8ff88
First trying simple merge strategy to revert.
Simple revert fails; trying Automatic revert.
Auto-merging arch/i386/kernel/io_apic.c
merge: warning: conflicts during merge
ERROR: Merge conflict in arch/i386/kernel/io_apic.c
....


Is somewhere a howto-revert-patches-in-kernel-git-for-raw-beginners?

<earny>