more mtrr/pat issues x86_64 4gb ram

gjohnson5 tonyjohn5 at yahoo.com
Thu May 29 19:41:43 UTC 2008


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-tp17543465p17544234.html
Sent from the Fedora Test List mailing list archive at Nabble.com.




More information about the fedora-test-list mailing list