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:
----- /proc/cpuinfo -----cpu.1: 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.