From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: v4.3-rc4: i915: ThinkPad Yoga 12: *ERROR* The master control interrupt lied (SDE)! Date: Mon, 12 Oct 2015 10:02:06 +0300 Message-ID: <87mvvobmdt.fsf@intel.com> References: <20151010190843.GB27137@malice.jf.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20151010190843.GB27137@malice.jf.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Darren Hart , Linux Kernel Mailing List Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Daniel Vetter List-Id: dri-devel@lists.freedesktop.org T24gU2F0LCAxMCBPY3QgMjAxNSwgRGFycmVuIEhhcnQgPGR2aGFydEBpbmZyYWRlYWQub3JnPiB3 cm90ZToKPiBUaGUgRGViaWFuIDMuMTYuMCBrZXJuZWwgZG9lcyBub3QgZW1pdCB0aGUgZXJyb3Is IGJ1dCBJIGhhdmUgbm90IGF0dGVtcHRlZCBhCj4gYmlzZWN0aW9uLgo+Cj4gVGhlIHdhcm5pbmcg d2FzIGFkZGVkIGJ5Ogo+IDM4Y2M0NmQgZHJtL2k5MTUvYmR3OiBBY2sgaW50ZXJydXB0cyBiZWZv 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Jani Nikula To: Darren Hart , Linux Kernel Mailing List Cc: Daniel Vetter , Daniel Vetter , David Airlie , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: v4.3-rc4: i915: ThinkPad Yoga 12: *ERROR* The master control interrupt lied (SDE)! In-Reply-To: <20151010190843.GB27137@malice.jf.intel.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <20151010190843.GB27137@malice.jf.intel.com> User-Agent: Notmuch/0.20.2+57~gff3a03d (http://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Mon, 12 Oct 2015 10:02:06 +0300 Message-ID: <87mvvobmdt.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 10 Oct 2015, Darren Hart wrote: > The Debian 3.16.0 kernel does not emit the error, but I have not attempted 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 But we don't start hitting the warning right away with that commit, do we? There's a bug about this with a bisected bad commit [1], please let's track this there. Thanks, Jani. [1] https://bugs.freedesktop.org/show_bug.cgi?id=92084 > > Follows: v3.15-rc8 > Preceedes: 3.17-rc1 > > This is not present in v3.16, so perhaps not present in the Debian kernel and > this is not a regression, but just reporting the condition as intended. > > 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 = 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* crtc 21: Can't calculate constants, dotclock = 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 control interrupt lied (SDE)! > [ 12.466498] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device > [ 12.794359] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 13.869733] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 13.869894] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 13.870058] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 22.656986] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 257.506246] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 257.506415] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 257.506584] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 257.506746] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 278.722570] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 278.722744] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 278.722908] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 1857.776390] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 1857.776549] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 1857.776710] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > [ 4057.592685] [drm:gen8_irq_handler [i915]] *ERROR* The master control interrupt lied (SDE)! > > -- > Darren Hart > Intel Open Source Technology Center -- Jani Nikula, Intel Open Source Technology Center