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@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@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@localhost ~]$
>
>
>
>
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