On Thu, Nov 17, 2011 at 19:31, Nicolas Kalkhof <nkalk...@web.de> wrote: > Hi Daniel, > > no problem :). Your patches look good! No hangs or stalls so far with > semaphores and rc6 switched on. However I had to disable intel_iommu since it > freezes my box shortly after firing up X :(.
Meh, so ppgtt doesn't seem to help rc6 hangs caused by dmar. Has anything changed wrt how the machine hangs, i.e. can you gather more information via ssh/logs/netconsole/error_state? > One other thing still remains: Since the merges for kernel 3.2 came in late > october, my cpu/gpu seems to run hotter (approx 10 °C) when idling and after > some minutes the cpu load goes up on all cores but the cpu frequency stays > low (800 MHz) as well as the gpu (650MHz) and the system is responding well. > Yet still additional 5-8 watts are drained from the power supply. Something > has to throttle up :(. Oprofile shows that the kernel somewhere hogs the cpu > (see dump below). This happens with every kernel from 3.1 up to latest > linux-next. I wasn't able to track the bug down yet so I guess I'll better > file a bug report on lkml to get someone to verify this. Iirc not the first time I've heard of this. Reporting a bug to lkml sounds like the right thing to do (kernel bugzilla is still down). Thanks for testing, Daniel -- Daniel Vetter daniel.vet...@ffwll.ch - +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
