Re: 2.6.20rc5 k8/acpi regression ( 2.6.17.13 works fine ).

[Paweł Sikora <pluto@agmk.net>]

On Thursday 25 of January 2007 05:50:45 Len Brown wrote:
> On Wednesday 24 January 2007 17:52, Adrian Bunk wrote:
> > On Wed, Jan 24, 2007 at 11:46:44PM +0100, Paweł Sikora wrote:
> > > for 2.6.20rc5 i get an acpi related oops during x86-64 boot:
> > > http://minus.ds14.agh.edu.pl/~pluto/2.6.20rc5-acpi-oops.jpg
> > > disabling the "amd-k8 cool'n'quiet" option in bios helps.
> > > moreover, it works fine for 2.6.17.13, so it looks like
> > > a recent regression. i can provide more details if you need.
> >
> > thanks for your report.
> >
> > Can you narrow down a bit when it started?
> > Is 2.6.19 OK?
> > Is 2.6.18 OK?

ok, here are results of my tests:

M/B: http://www.epox.nl/products/view.php?product_id=421

$ cat /proc/cpuinfo
processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 55
model name      : AMD Athlon(tm) 64 Processor 3700+
stepping        : 2
cpu MHz         : 2200.000
cache size      : 1024 KB
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca 
cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 
3dnowext 3dnow pni lahf_lm
bogomips        : 4423.06
TLB size        : 1024 4K pages
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp

amd-k8 cool'n'quiet enabled in bios.

2.6.17.13-uni, 2.6.17.14-smp, 2.6.18.6-smp and 2.6.20rc5-uni work.
2.6.20rc5-smp ooopses during boot but works if c'n'q is disabled.
pure 2.6.19.x not tested yet...

> Is the stack trace always the same?  It doesn't make much sense to me.
>
> if AMD cool & quiet is enabled in the BIOS, but CONFIG_CPU_FREQ=n
> in the kernel, do you see the same problem?

looks like not related to config_cpu_freq.
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