On Wed, 2010-08-25 at 15:55 +0200, Johannes Berg wrote: > Since 2.6.36-rc kernels (both rc1 and rc2) I've had X lockups where X > sits in a loop just using CPU. > > The only kernel message I got this time was this one: > > [22290.792075] [drm] nouveau 0000:02:00.0: PFIFO_DMA_PUSHER - Ch 2 > > stracing X just repeats, in a loop, > > ioctl(9, 0x40086482, 0x7fff6a873af0) = ? ERESTARTSYS (To be restarted) > --- SIGALRM (Alarm clock) @ 0 (0) --- > rt_sigreturn(0xe) = -1 EINTR (Interrupted system call) > > > so apparently that ioctl never returns. > > This has never happened on 2.6.35, and I've gone back now. Large screen > updates seem to trigger it more likely, but I haven't found a way to > really reproduce it. FWIW, I'm running with two screens connected.
This problem persists in -rc3, where I'd hoped the nouveau changes would actually fix it :-( In fact, it seems I was either "lucky" or it was made easier to trigger, this time it already happened during my login. johannes
