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SubjectRe: 2.2.16 SMP: mtrr errors
See my answers inline below.  /paul

Mark Hahn (hahn@coffee.psychology.mcmaster.ca) said:

> > 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/pci look 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].



> 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.


> > 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!


> regards, mark hahn.
>
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