2.2.16 SMP: mtrr errors
Please cc: any responses to my email address <[email protected]>
My setup
-A standard install of RedHat 7.0 with the 2.2.16smp w/ hand compiled X
4.0.1 to support xinerama
-Tyan tiger 133 s1834 motherboard (VIA Apollo Pro133A Chipset) -256mb PC133 RAM
-Two 800 Mhz PIII eb Slot-1 CPU's
-Matrox g450 32MB RAM dual-heal AGP video card w/ hand compiled X driver
from matrox
My problem
from /var/log/message at startup:
mtrr: v1.35a (19990819) Richard Gooch ([email protected]) <snip>
CPU0: Intel Pentium III (Coppermine) stepping 03 <snip>
CPU1: Intel Pentium III (Coppermine) stepping 03 Total of 2 processors activated (3194.88 BogoMIPS). <snip>
checking TSC synchronization across CPUs: passed.
mtrr: your CPUs had inconsistent variable MTRR settings
mtrr: probably your BIOS does not setup all CPUs
and immediately after starting X:
kernel: mtrr: base(0xd4000000) is not aligned on a size(0x1800000) boundary last message repeated 2 times
and finally:
%cat /proc/mtrr
reg00: base=0x00000000 ( 0MB), size= 256MB: write-back, count=1
reg01: base=0xd0000000 (3328MB), size= 64MB: write-combining, count=1
reg02: base=0xd5800000 (3416MB), size= 8MB: write-combining, count=1
I would like to know what, if anything, is wrong and what I can do about it.
Cheers!
/paul
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Quoted 9 lines
kernel: mtrr: base(0xd4000000) is not aligned on a size(0x1800000) boundary last message repeated 2 times
and finally:
%cat
/proc/mtrr
reg00: base=0x00000000 ( 0MB), size= 256MB: write-back, count=1
reg01: base=0xd0000000 (3328MB), size= 64MB: write-combining, count=1
reg02: base=0xd5800000 (3416MB), size= 8MB: write-combining, count=1
I'm seeing the same thing with the Matrox G400.
John
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See my answers inline below. /paul
Quoted 6 lines · Mark Hahn
Quoted 1 line
kernel: mtrr: base(0xd4000000) is not aligned on a size(0x1800000) boundary
X is trying to set an mtrr for the framebuffer. the odd thing is that its trying to set a 24M mtrr, which is pretty strange. what does
/proc/pcilook like for the G450?
% cat /proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: VIA Technologies Unknown device (rev 196).
Vendor id=1106. Device id=691.
Medium devsel. Master Capable. No bursts.
Prefetchable 32 bit memory at 0xd0000000 [0xd0000008].
Bus 0, device 1, function 0:
PCI bridge: VIA Technologies VT 82C598 Apollo MVP3 AGP (rev 0).
Medium devsel. Master Capable. No bursts. Min Gnt=12.
Bus 0, device 7, function 0:
ISA bridge: VIA Technologies VT 82C596 Apollo Pro (rev 35).
Medium devsel. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: VIA Technologies VT 82C586 Apollo IDE (rev 16).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32. I/O at 0xe000 [0xe001].
Bus 0, device 7, function 2:
USB Controller: VIA Technologies VT 82C586 Apollo USB (rev 17).
Medium devsel. IRQ 9. Master Capable. Latency=32.
I/O at 0xe400 [0xe401].
Bus 0, device 7, function 3:
Host bridge: VIA Technologies Unknown device (rev 48).
Vendor id=1106. Device id=3050.
Medium devsel. Fast back-to-back capable.
Bus 0, device 17, function 0:
Multimedia audio controller: Ensoniq AudioPCI (rev 0).
Slow devsel. IRQ 9. Master Capable. Latency=32. Min Gnt=12.Max Lat=128. I/O at 0xe800 [0xe801].
Bus 0, device 18, function 0:
Ethernet controller: Intel 82557 (rev 8).
Medium devsel. Fast back-to-back capable. IRQ 11. Master Capable. Latency=32. Min Gnt=8.Max Lat=56.
Non-prefetchable 32 bit memory at 0xda100000 [0xda100000].
I/O at 0xec00 [0xec01].
Non-prefetchable 32 bit memory at 0xda000000 [0xda000000].
Bus 1, device 0, function 0:
VGA compatible controller: Matrox Unknown device (rev 130).
Vendor id=102b. Device id=525.
Medium devsel. Fast back-to-back capable. IRQ 10. Master Capable. Latency=64. Min Gnt=16.Max Lat=32.
Prefetchable 32 bit memory at 0xd4000000 [0xd4000008].
Non-prefetchable 32 bit memory at 0xd6000000 [0xd6000000].
Non-prefetchable 32 bit memory at 0xd7000000 [0xd7000000].Quoted 1 line
also, how do you like the G450?
My first impressions of the g450 are spectacular. I know it's not supposed to be as fast as the dual Nvidia offerings, but I don't play games and Matrox has always been tops when it comes to text appearance. It's fast as can be driving two monitors at 1600x1200 and not too expensive to boot. I like it.
Quoted 4 lines
Quoted 1 line
I would like to know what, if anything, is wrong and what I can do about it.
worst case is that X doesn't get to set the mtrr it wants. this may have some performance effect, but no functionality effect.
That's good enough for me!
Quoted 2 lines
regards, mark hahn.
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