Re: ACPI problems with 2.6.31 linux-acpi

[ykzhao <yakui.zhao@intel.com>]

On Thu, 2009-09-17 at 18:12 +0800, Henric Blomgren wrote:
> Hello everyone,
> 
> I've got a problem with one of my home debian nodes and I'm lead to
> believe it is to do with the acpi system.
> 
> When installing 2.6.26 (debian vanilla) the system randomly locks up
> with the message:
> BUG: soft lockup detected on CPU#0! 61s
> While kacpid consumes 100% cpu according to top.
Will you please file a bug report at
http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI and attach the
following output?
   a. acpidump
   b. grep -R . /sys/firmware/acpi/interrupts/*
   c. lspic -vxxx

Thanks.
> 
> With this being an older kernel I took it upon myself to build 2.6.31
> to see if there was any change.
> The system does not lock up any more, but kacpid still consumes close
> to 100% cpu and I'm getting this in my dmesg:
> [45699.978868] ACPI Error (psparse-0537): Method parse/execution
> failed [\_SB_.PCI0.LPC_.SMBR] (Node f7812c48), AE_AML_INFINITE_LOOP
> [45699.978905] ACPI Error (psparse-0537): Method parse/execution
> failed [\_SB_.PCI0.LPC_.INIT] (Node f7812c30), AE_AML_INFINITE_LOOP
> [45699.978936] ACPI Error (psparse-0537): Method parse/execution
> failed [\_GPE._L00] (Node f78101b0), AE_AML_INFINITE_LOOP
> [45699.978970] ACPI Exception: AE_AML_INFINITE_LOOP, while evaluating
> GPE method [_L00] 20090521 evgpe-568
> (constantly repeating).
> 
> The system is an Intel Atom Little-Falls mini itx board with 1gb ram
> which I've checked with memtest86.
> lspci output:
> 00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory
> Controller Hub (rev 02)
> 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ
> Integrated Graphics Controller (rev 02)
> 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
> Port 1 (rev 01)
> 00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
> Port 3 (rev 01)
> 00:1c.3 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express
> Port 4 (rev 01)
> 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
> UHCI Controller #1 (rev 01)
> 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
> UHCI Controller #2 (rev 01)
> 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
> UHCI Controller #3 (rev 01)
> 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB
> UHCI Controller #4 (rev 01)
> 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2
> EHCI Controller (rev 01)
> 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
> 00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC
> Interface Bridge (rev 01)
> 00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family)
> SATA IDE Controller (rev 01)
> 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 01)
> 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
> RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
> 04:00.0 Mass storage controller: Promise Technology, Inc. PDC20575
> (SATAII150 TX2plus) (rev 02)
> 
> acpidump output is available at : http://halfbug.com/acpi.txt
> 
> Booting with acpi=off fixes the problem, but I thought I would report
> this issue since it is happening with the latest kernel.
> 
> Sorry if the above information does not include everything you need to
> know, if anything is missing please let me know and I'll get the
> information.
> 
> Regards,
> Henric
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