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 ~]$
>> 
>> 
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/more-mtrr-pat-issues-x86_64-4gb-ram-tp17543465p17834629.html
Sent from the Fedora Test List mailing list archive at Nabble.com.




More information about the fedora-test-list mailing list