On Thu, 2011-02-24 at 15:06 +0000, Mel Gorman wrote:

quoted

Possible. I had some graphics issues with X hanging once a while, but
with all of those I could still ssh in and reboot the machine.

It could very well be related with the main difference being that
compaction blew up with interrupts disabled taking down the whole
machine. Have you a reproduction case for the X hangs?

No, I don't, it just seems to happen every couple of hours. It just
happened again while I wasn't even touching the laptop (was reading
something else)...

It might also be worth running memtest on the machine just in case but I
find it doubtful that it's the problem. A buggy graphics driver feels
more likely. Are you running anything like compiz? If yes, are the
hangs still reproducible with it disabled?

No, I'm not running compiz or any other composition manager.

Thanks. With luck, it'll show up a driver that is corrupting memory.

Well, it hung a minute ago, but I couldn't even ssh in any more...
Sometimes I can, sometimes I can't.

Ok, good to know. Right now I am leaning towards a buggy graphics driver
or X server is corrupting memory and compaction suffered particularly
badly from it.

Yeah, I'm inclined to agree.

Thanks for your help. Can we copy the bug to some DRI folks maybe?

johannes

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