On Fri, Jan 02, 2015 at 09:42:01AM +0200, Jani Nikula wrote: > On Thu, 01 Jan 2015, Andrey Skvortsov <andrej.skvortzov@xxxxxxxxx> wrote: > > Hi, > > > > this warning does not exist in 3.19-rc1, but it happens every boot in > > 3.19-rc2. If you need any other information or data, I would be glad > > to help to debug it. > > Hmm, at a glance I can't find a commit that could be the culprit. Can > you bisect between rc1 and rc2 to find the bad commit? Sorry, my first message was not fully correct. As I tested this more, it happens unfortunately not every boot. And this is not a regression, because it happened couple of times with 3.19-rc1 too. This warning seems to depend on the previously booted kernel. If I boot the same kernel every time, it occurs very seldom. To reproduce the warning I booted v3.19-rc2 and v3.19-rc1-g08b022a965 one after another many times. In this case the warning happens with probability around 50%. > > [ 12.848428] ------------[ cut here ]------------ > > [ 12.848479] WARNING: CPU: 1 PID: 328 at drivers/gpu/drm/i915/intel_display.c:11375 intel_crtc_set_config+0x3de/0xb36 [i915]() > > [ 12.848482] WARN_ON(!set->fb && (set->num_connectors != 0)) -- Best regards, Andrey Skvortsov Secure e-mail with gnupg: See http://www.gnupg.org/ PGP Key ID: 0x57A3AEAD
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