On Fri, 2010-03-19 at 10:35 +1000, Dave Airlie wrote: > From: Dave Airlie <airl...@redhat.com> > > On constrained r100 systems compiz would fail to start due to a lack > of memory, we can just fallback place the objects rather than completely > failing it works a lot better. > > Signed-off-by: Dave Airlie <airl...@redhat.com>
This change seems to trigger or at least greatly expedite GPU lockups on my PowerBook. With the change applied, my normal X session locked up the GPU after just a few minutes several times. Now with it reverted it's back to the previous stability. I don't know why that is - maybe something doesn't properly deal with BOs getting placed differently in some cases now - but anyway I suspect the implications of this change haven't been fully thought through: The log message sounds as though the change was mainly written with radeon_bo_create() / radeon_bo_list_validate() in mind, but radeon_ttm_placement_from_domain() is also called from other places: * radeon_bo_pin(): The change could lead to a BO being pinned to GTT instead of VRAM, which would probably be bad. * radeon_evict_flags(): The change might have undesirable consequences here as well, not sure. I don't think the way we currently use the same arrays for normal and busy placement makes a lot of sense, but we probably need a better mechanism to specify which placements are desirable / acceptable in each case. -- Earthling Michel Dänzer | http://www.vmware.com Libre software enthusiast | Debian, X and DRI developer ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel