With BIOS version 0801 the powernow-k8 faulting.
------------[ cut here ]------------
WARNING: at arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1257 powernowk8_cpu_init+0
x4e0/0xd3f()
Hardware name: System Product Name
[Firmware Bug]: powernow-k8: Your BIOS does not provide ACPI _PSS objects in a w
ay that Linux understands. Please report this to the Linux ACPI maintainers and
complain to your BIOS vendor.
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.30-rc3 #2
input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/inpu
t2
Call Trace:
?[<ffffffff8023b28f>] ? warn_slowpath+0xdf/0x130
?[<ffffffff8038f91c>] ? acpi_get_handle+0x84/0xa8
?[<ffffffff8039c06f>] ? acpi_processor_register_performance+0x3ae/0x3d2
?[<ffffffff804e1227>] ? powernowk8_cpu_init+0x4e0/0xd3f
?[<ffffffff804e868e>] ? _spin_lock_irqsave+0x1e/0x50
?[<ffffffff8045c944>] ? cpufreq_add_dev+0x174/0x670
?[<ffffffff8023be8b>] ? vprintk+0x2bb/0x3f0
?[<ffffffff8023be95>] ? vprintk+0x2c5/0x3f0
?[<ffffffff80233ca0>] ? default_wake_function+0x0/0x20
?[<ffffffff8022fdb7>] ? task_rq_lock+0x47/0x90
?[<ffffffff804e88c2>] ? _spin_unlock_irqrestore+0x12/0x30
?[<ffffffff80236e33>] ? set_cpus_allowed_ptr+0x83/0x140
?[<ffffffff804e5964>] ? printk+0x40/0x4c
Switched to high resolution mode on CPU 3
Switched to high resolution mode on CPU 2
Switched to high resolution mode on CPU 1
Switched to high resolution mode on CPU 0
?[<ffffffff803c75c6>] ? sysdev_driver_register+0x96/0x120
?[<ffffffff804e0cc7>] ? powernowk8_init+0x0/0x80
?[<ffffffff8045b6bd>] ? cpufreq_register_driver+0xbd/0x1e0
?[<ffffffff8020904b>] ? do_one_initcall+0x3b/0x160
?[<ffffffff802f5ff8>] ? create_proc_entry+0x58/0xb0
?[<ffffffff80272aa0>] ? register_irq_proc+0xc0/0xe0
?[<ffffffff806b8658>] ? kernel_init+0x12b/0x181
?[<ffffffff8020c2aa>] ? child_rip+0xa/0x20
?[<ffffffff806b852d>] ? kernel_init+0x0/0x181
?[<ffffffff8020c2a0>] ? child_rip+0x0/0x20
---[ end trace f89681380ea72a15 ]---
Attached is the full dmesg and dmicode files.
Ross Alexander
SAP Basis
NEC Europe Ltd
Corporate IT Centre
Tel:???? +44 20 8752 3394
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Ross Alexander wrote:
> With BIOS version 0801 the powernow-k8 faulting.
>
Yes I'm having the exact warning with my system too. I already reported
this 2-3 days ago and
Borislav Petkov said that the backtrace was intentional:
"
For the reasoning behind why you get a backtrace instead of simple
warning see
79cc56af9fdbeaa91f50289b932d0959b41f9467
a0ad05c75aa362c91f4d9cd91ff375a739574dd8
"
I'd really like to know if that warning/firmware bug is leaving the kernel in an inconsistent state
because my keyboard also doesn't work if I don't give acpi=off during the boot.
I never upgraded my BIOS and I wonder why my keyboard is broken after a normal booting sequence.
The system was charmly working with 2.6.29_rc8, didn't have time to try 2.6.29{.1}.
Any helpful comment will be appreciated.
Regards,
Ozan Çağlayan
http://www.pardus.org.tr/eng
> On Thu, 23 Apr 2009, Ross Alexander wrote:
>
> > With BIOS version 0801 the powernow-k8 faulting.
> >
> > ------------[ cut here ]------------
> > WARNING: at arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1257 powernowk8_cpu_init+0
> > x4e0/0xd3f()
> > Hardware name: System Product Name
> > [Firmware Bug]: powernow-k8: Your BIOS does not provide ACPI _PSS objects in a w
> > ay that Linux understands. Please report this to the Linux ACPI maintainers and
> > complain to your BIOS vendor.
>
> If you attach the output from acpidump to a new bugzilla entry,
>
> http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
Turns out that the report already exists.
Please attach the output from acpidump here:
http://bugzilla.kernel.org/show_bug.cgi?id=13146
thanks,
-Len Brown, Intel Open Source Technology Center
Hello Len,
I have updated the BIOS to 1001 on M4A78T-E but the ACPI quality is still poor. Attached is the dump from acpidump and I'll add it to the bug report soon.
Cheers
Ross
-----Original Message-----
From: Len Brown [mailto:[email protected]]
Sent: 24 April 2009 04:36
To: Ross Alexander
Cc: [email protected]; [email protected]; [email protected]
Subject: Re: ACPI / powernow-k8 problems with M4A78T-E (AM3) and 2.6.30-rc3
> On Thu, 23 Apr 2009, Ross Alexander wrote:
>
> > With BIOS version 0801 the powernow-k8 faulting.
> >
> > ------------[ cut here ]------------
> > WARNING: at arch/x86/kernel/cpu/cpufreq/powernow-k8.c:1257 powernowk8_cpu_init+0
> > x4e0/0xd3f()
> > Hardware name: System Product Name
> > [Firmware Bug]: powernow-k8: Your BIOS does not provide ACPI _PSS objects in a w
> > ay that Linux understands. Please report this to the Linux ACPI maintainers and
> > complain to your BIOS vendor.
>
> If you attach the output from acpidump to a new bugzilla entry,
>
> http://bugzilla.kernel.org/enter_bug.cgi?product=ACPI
Turns out that the report already exists.
Please attach the output from acpidump here:
http://bugzilla.kernel.org/show_bug.cgi?id=13146
thanks,
-Len Brown, Intel Open Source Technology Center
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