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PostPosted: Tue Aug 18, 2009 4:49 pm 
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Joined: Sun Sep 25, 2005 3:50 pm
Posts: 1013
Location: Los Angeles
I noticed a lot of conflicting memory types errors on my backend machine when running X on my R6.00.09 backend. X becomes unstable and when it crashes the machine locks up and I lose network connection. When in this locked state nothing fixes it short of a reboot. My /var/log/messages.log contains things like this:
Quote:
Aug 18 15:05:38 mythbox-mbe X:31659 conflicting memory types ec000000-ed000000 write-combining<->uncached-minus
Aug 18 15:05:38 mythbox-mbe reserve_memtype failed 0xec000000-0xed000000, track write-combining, req write-combining
Aug 18 15:05:38 mythbox-mbe X:31659 conflicting memory types ec000000-ed000000 write-combining<->uncached-minus
Aug 18 15:05:38 mythbox-mbe reserve_memtype failed 0xec000000-0xed000000, track write-combining, req write-combining
Aug 18 15:05:38 mythbox-mbe X:31742 freeing invalid memtype ec000000-ed000000
Aug 18 15:09:25 mythbox-mbe X:31659 freeing invalid memtype ec000000-ed000000
and my box beeps constantly (beep-pause-beep-pause...) until I reboot.

My google-fu led me to this post on the Arch bugtracker. If you add "nopat" (without the quotes) to your kernel boot parameters in /boot/grub/menu.lst and reboot your problems should go away.

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PostPosted: Tue Aug 18, 2009 5:55 pm 
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Joined: Sun Aug 28, 2005 7:07 pm
Posts: 821
Location: Melbourne, Australia
Your hw profile suggests you're only running nvidia graphics "cards". The 'fix' was for an ATI driver. That bug was also closed in March this year.

You didn't say if nopat+reboot fixed the problem. Did it?

Mike

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PostPosted: Tue Aug 18, 2009 6:00 pm 
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Joined: Sun Sep 25, 2005 3:50 pm
Posts: 1013
Location: Los Angeles
manicmike wrote:
Your hw profile suggests you're only running nvidia graphics "cards". The 'fix' was for an ATI driver. That bug was also closed in March this year.

Ignore my very outdated profile ;) The backend in question uses the VESA driver for it's onboard video.

manicmike wrote:
You didn't say if nopat+reboot fixed the problem. Did it?

Yes it did! :lol:

[edit]Hardware profile now fixed and accurate :) [/edit]

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