On Sun, 2010-08-15 at 19:32 -0700, Linus Torvalds wrote: > I started wondering why 'top' was showing an otherwise idle system as > having a load average of 0.5+, and worker threads constantly using the > CPU. > > So I did a system-wide profile, and got the attached output (look at > it in a really wide terminal). > > There seems to be something _seriously_ wrong with i915 SDVO detect. > This is on an Apple Mac Mini (hey, your favorite problem child!), and > apparently it spends 20% of its non-idle CPU time just doing udelay's > for the i2c SDVO connection detection. > > That sounds a bit wrong, doesn't it? At least we should replace mdelay with msleep in those functions. Can you get a boot with drm.debug=4? I wonder are we picking up a bad SDVO, the insane code retries 50 times with a hard loop delay. Dave. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
