From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jean-Christian de Rivaz Subject: Re: v4.3-rc4: i915: ThinkPad Yoga 12: *ERROR* The master control interrupt lied (SDE)! [regression] Date: Mon, 12 Oct 2015 19:29:40 +0200 Message-ID: <561BEE04.10101@eclis.ch> References: <20151010190843.GB27137@malice.jf.intel.com> <20151012070600.GX26718@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20151012070600.GX26718@phenom.ffwll.local> Sender: linux-kernel-owner@vger.kernel.org To: Darren Hart , Linux Kernel Mailing List , Daniel Vetter , Jani Nikula , David Airlie , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Jairo Miramontes List-Id: intel-gfx@lists.freedesktop.org Le 12. 10. 15 09:06, Daniel Vetter a =C3=A9crit : > Another regression for Jairo to track. > -Daniel I get the exact same dmesg too with the 4.3.0-rc5 on a i5-5250U NUC=20 using HDMI. The rest is a standard Debian Jessie. > On Sat, Oct 10, 2015 at 12:08:43PM -0700, Darren Hart wrote: >> The Debian 3.16.0 kernel does not emit the error, but I have not att= empted a >> bisection. >> >> The warning was added by: >> 38cc46d drm/i915/bdw: Ack interrupts before handling them (GEN8) >> 2014-06-18 (1 year, 4 months ago), Oscar Mateo >> >> Follows: v3.15-rc8 >> Preceedes: 3.17-rc1 >> >> This is not present in v3.16, so perhaps not present in the Debian k= ernel and >> this is not a regression, but just reporting the condition as intend= ed. >> >> Linux Version: v4.3-rc4 >> Platform: Lenovo ThinkPad Yoga 12 >> OS: Debian 8.2 >> >> $ dmesg | grep -i drm >> [ 10.918367] [drm] Initialized drm 1.1.0 20060810 >> [ 11.235005] [drm] Memory usable by graphics device =3D 4096M >> [ 11.235009] fb: switching to inteldrmfb from simple >> [ 11.235093] [drm] Replacing VGA console driver >> [ 11.241160] [drm] Supports vblank timestamp caching Rev 2 (21.10.= 2013). >> [ 11.241162] [drm] Driver supports precise vblank timestamp query. >> [ 11.256249] [drm:drm_calc_timestamping_constants [drm]] *ERROR* c= rtc 21: Can't calculate constants, dotclock =3D 0! >> [ 11.326946] [drm] GMBUS [i915 gmbus dpb] timed out, falling back = to bit banging on pin 5 >> [ 11.344097] [drm] Initialized i915 1.6.0 20150731 for 0000:00:02.= 0 on minor 0 >> [ 11.344913] fbcon: inteldrmfb (fb0) is primary device >> [ 12.462509] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 12.466498] i915 0000:00:02.0: fb0: inteldrmfb frame buffer devic= e >> [ 12.794359] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 13.869733] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 13.869894] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 13.870058] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 22.656986] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 257.506246] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 257.506415] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 257.506584] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 257.506746] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 278.722570] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 278.722744] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 278.722908] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 1857.776390] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 1857.776549] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 1857.776710] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> [ 4057.592685] [drm:gen8_irq_handler [i915]] *ERROR* The master cont= rol interrupt lied (SDE)! >> >> --=20 >> Darren Hart >> Intel Open Source Technology Center