Re: [Bug #16294] [Q35 bisected] hang at init of i915 driver

Kees Cook
2010-07-09T00:45:05Z

Hi Rafael,

On Fri, Jul 09, 2010 at 01:41:39AM +0200, Rafael J. Wysocki wrote:
> The following bug entry is on the current list of known regressions
> from 2.6.34. Please verify if it still should be listed and let the tracking team
> know (either way).

Yup, this is still a regression. The fix is trivial (see below).

> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=16294
> Subject : [Q35 bisected] hang at init of i915 driver
> Submitter : Kees Cook <kees-oSa+0FWJbaXR7s880joybQ@public.gmane.org>
> Date : 2010-06-25 18:20 (14 days old)
> First-Bad-Commit: http://git.kernel.org/linus/f1befe71fa7a79ab733011b045639d8d809924ad

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9344216..0d9007d 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1229,6 +1229,7 @@ static int intel_i915_get_gtt_size(void)
(gmch_ctrl & G33_PGETBL_SIZE_MASK));
size = 512;
}
+ size = 1024;
} else {
/* On previous hardware, the GTT size was just what was
* required to map the aperture.

--
Kees Cook @outflux.net