Re: ACPI fails on Panasonic Toughbook CF-52 - ACPI Error (exregion-0164): Could not map memory

Sebastian Smolorz
2008-02-08T12:25:58Z

Len Brown schrieb:
> On Thursday 07 February 2008 17:41, Sebastian Smolorz wrote:
>> Hi,
>>
>> I am not able to start the kernel on a Panasonic Toughbook CF-52 successfully
>> with ACPI enabled. Only acpi=off or acpi=ht works. ACPI also fails with the
>> latest linux-acpi-2.6 git checkout from today. The attached file
>> failed_boot.txt shows the kernel log. After the last line the boot process
>> does not proceed.
>>
>> Interestingly, I managed to boot the system twice a few days ago. The
>> successful dmesg output shows the attached file dmesg_acpi_osi_test. It shows
>> a lot of ACPI errors, though.
>>
>> Please let me know if you need more information or how I can help to debug
>> this problem further.
>
> ACPI Error (exregion-0164): Could not map memory at F7C1E118000001AC, size 1000 [20070126]
> ACPI Exception (evregion-0420): AE_NO_MEMORY, Returned by Handler for [SystemMemory] [20070126]
>
> I saw these appear on my HP nx6325 due to some changes in the x86 tree last week.
>
> I bisected it down to
>
> commit 266b9f8727976769e2ed2dad77ac9295f37e321e
> Author: Thomas Gleixner <tglx@linutronix.de>
> Date: Wed Jan 30 13:34:06 2008 +0100
>
> x86: fix ioremap RAM check
>
> and reported it to Ingo.
> He told me to test the latest x86 tree, which didn't have those messages.
> Subsequently, these messages went away in Linus' tree for the nx6325.
>
> but at least my box booted, your panasonic failure is much more severe.
>
> Please file a bug report here:
> http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
>
> and attach the info you sent, plus the output from acpidump.

Done.

> Also, if you can bisect and check out the commit above to see
> if it was where things started to go bad, that would help.

The problem is that booting with ACPI enabled is not reproducable. I
only managed to do it twice. ACPI failure appears also with plain kernel
2.6.24 and 2.6.23.12 and these were before that commit.

--
Sebastian