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SubjectRe: 3.2-rc2 freezes on boot for AMD K6 - bisected to commit bcb80e53877c2045d9e52f4a71372c3fe6501f6f
On 11/29/2011 11:59 PM, Srivatsa S. Bhat wrote:
> On 11/30/2011 10:24 AM, Larry Finger wrote:
>
>> I have an ancient laptop with an AMD-K6 CPU that freezes on boot with
>> 3.2-rc2. The problem was bisected to commit bcb80e53877c2.
>>
>> The cpuinfo for this box is:
>>
>>>> cpu.1: cpuinfo
>> ----- /proc/cpuinfo -----
>> processor : 0
>> vendor_id : AuthenticAMD
>> cpu family : 5
>> model : 8
>> model name : AMD-K6(tm) 3D processor
>> stepping : 12
>> cpu MHz : 428.804
>> cache size : 64 KB
>> fdiv_bug : no
>> hlt_bug : no
>> f00f_bug : no
>> coma_bug : no
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 1
>> wp : yes
>> flags : fpu vme de pse tsc msr cx8 pge mmx syscall 3dnow
>> k6_mtrr up
>> bogomips : 857.60
>> clflush size : 32
>> cache_alignment : 32
>> address sizes : 32 bits physical, 32 bits virtual
>> power management:
>>
>> ----- /proc/cpuinfo end -----
>>
>> This patch is quite simple, thus it appears that rdmsr() is OK, but that
>> rdmsr_safe() is not.
>>
>> I am happy to provide any other info regarding this box.
>>
>
>
> Hi Larry,
>
> Can you please try out the patch posted in
> https://lkml.org/lkml/2011/11/28/178 ?
>
> This patch will be available in mainline kernel from -rc4.
> https://lkml.org/lkml/2011/11/28/457

Srivatsa,

Thanks for the reference. That patch does fix my problem. Too bad that the bad
commit was not in the subject of that other thread so that I could have found it
with Google.

Larry



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