more mtrr/pat issues x86_64 4gb ram
gjohnson5
tonyjohn5 at yahoo.com
Sat Jun 14 01:20:10 UTC 2008
x86 Pat seems to be working for me as of
kernel-2.6.26-0.64.rc5.git7.fc10
YAY
The mtrr's are broken still , but if the kernel and drivers are using pat ,
I guess it doesn't matter...
Thanks
gjohnson5 wrote:
>
> Forgot to mention
> Radeon X1900 tries to set an mtrr range and can't hence the X server
> crashes
>
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
> May 25 15:31:41 loser kernel: mtrr: type mismatch for d0000000,10000000
> old: write-back new: write-combining
>
>
> gjohnson5 wrote:
>>
>> I've been trying the rawhide kernels since PAT is now an option when
>> configuring the kernel, but on my desktop the mtrr are not configured
>> correctly assuming by the bios and disabling them makes system
>> performance drop to unusable levels. PAT hasn't function as of
>> kernel-2.6.26-0.43.rc4.git2.fc10
>>
>>
>> ASUS NCT-D ---> 1009001 bios
>>
>> [gjohnson at localhost ~]$ cat /proc/mtrr
>> reg00: base=0xc0000000 (3072MB), size=1024MB: uncachable, count=1
>> reg01: base=0x00000000 ( 0MB), size=4096MB: write-back, count=1
>> reg02: base=0x100000000 (4096MB), size=1024MB: write-back, count=1
>> [gjohnson at localhost ~]$ cat /proc/cpuinfo
>> processor : 0
>> vendor_id : GenuineIntel
>> cpu family : 15
>> model : 4
>> model name : Intel(R) Xeon(TM) CPU 3.60GHz
>> stepping : 3
>> cpu MHz : 3600.121
>> cache size : 2048 KB
>> physical id : 0
>> siblings : 2
>> core id : 0
>> cpu cores : 1
>> apicid : 0
>> initial apicid : 0
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 3
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
>> syscall nx lm constant_tsc pebs bts pni monitor ds_cpl est tm2 cid cx16
>> xtpr
>> bogomips : 7206.92
>> clflush size : 64
>> cache_alignment : 128
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> processor : 1
>> vendor_id : GenuineIntel
>> cpu family : 15
>> model : 4
>> model name : Intel(R) Xeon(TM) CPU 3.60GHz
>> stepping : 3
>> cpu MHz : 3600.121
>> cache size : 2048 KB
>> physical id : 3
>> siblings : 2
>> core id : 0
>> cpu cores : 1
>> apicid : 6
>> initial apicid : 6
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 3
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
>> syscall nx lm constant_tsc pebs bts pni monitor ds_cpl est tm2 cid cx16
>> xtpr
>> bogomips : 7200.16
>> clflush size : 64
>> cache_alignment : 128
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> processor : 2
>> vendor_id : GenuineIntel
>> cpu family : 15
>> model : 4
>> model name : Intel(R) Xeon(TM) CPU 3.60GHz
>> stepping : 3
>> cpu MHz : 3600.121
>> cache size : 2048 KB
>> physical id : 0
>> siblings : 2
>> core id : 0
>> cpu cores : 1
>> apicid : 1
>> initial apicid : 1
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 3
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
>> syscall nx lm constant_tsc pebs bts pni monitor ds_cpl est tm2 cid cx16
>> xtpr
>> bogomips : 7200.12
>> clflush size : 64
>> cache_alignment : 128
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> processor : 3
>> vendor_id : GenuineIntel
>> cpu family : 15
>> model : 4
>> model name : Intel(R) Xeon(TM) CPU 3.60GHz
>> stepping : 3
>> cpu MHz : 3600.121
>> cache size : 2048 KB
>> physical id : 3
>> siblings : 2
>> core id : 0
>> cpu cores : 1
>> apicid : 7
>> initial apicid : 7
>> fpu : yes
>> fpu_exception : yes
>> cpuid level : 3
>> wp : yes
>> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
>> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
>> syscall nx lm constant_tsc pebs bts pni monitor ds_cpl est tm2 cid cx16
>> xtpr
>> bogomips : 7200.18
>> clflush size : 64
>> cache_alignment : 128
>> address sizes : 36 bits physical, 48 bits virtual
>> power management:
>>
>> [gjohnson at localhost ~]$
>>
>>
>>
>>
>
>
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