Re: [Intel-gfx] [2.6.39-rc7] i915: kworker busily spinning...

2011-05-24 Thread Daniel J Blueman
On 24 May 2011 12:02, Andy Lutomirski l...@mit.edu wrote: On 05/17/2011 07:27 AM, Daniel J Blueman wrote: With 2.6.39-rc7 on my Sandy Bridge laptop GPU (8086:0126 rev 9), sometimes I find one of the kworker threads busily running with 15-20% system time for some minutes, causing terrible

Re: [Intel-gfx] [PATCH] drm/i915: Revert i915.semaphore=1 default from 47ae63e0

2011-05-24 Thread Andrew Lutomirski
On Thu, May 19, 2011 at 4:50 PM, Andrew Lutomirski l...@mit.edu wrote: On Thu, May 19, 2011 at 3:56 PM, Keith Packard kei...@keithp.com wrote: On Fri, 13 May 2011 12:14:54 -0400, Andy Lutomirski l...@mit.edu wrote: My Q67 / i7-2600 box has rev09 Sandy Bridge graphics.  It hangs instantly when

Re: [Intel-gfx] [PATCH] drm/i915: Revert i915.semaphore=1 default from 47ae63e0

2011-05-24 Thread Keith Packard
On Tue, 24 May 2011 13:10:27 -0400, Andrew Lutomirski l...@mit.edu wrote: I'm getting hangs on my X220 Core i7 laptop as well with 2.6.39 and i915.semaphores=1. They're not as reliable -- sometimes the system hangs on log in, sometimes after a few seconds, and sometimes it doesn't hang.