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[104.48.214.220]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7dba72fcb47sm2720585a34.15.2026.04.02.11.32.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Apr 2026 11:32:09 -0700 (PDT) From: Steev Klimaszewski To: dmitry.baryshkov@oss.qualcomm.com Cc: abhinav.kumar@linux.dev, andersson@kernel.org, bod@kernel.org, bryan.odonoghue@linaro.org, conor+dt@kernel.org, david@ixit.cz, devicetree@vger.kernel.org, dikshita.agarwal@oss.qualcomm.com, johan+linaro@kernel.org, konrad.dybcio@oss.qualcomm.com, konradybcio@kernel.org, krzk+dt@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, robh@kernel.org, stanimir.varbanov@linaro.org, threeway@gmail.com, vikash.garodia@oss.qualcomm.com Subject: Re: [PATCH v4 0/6] media: iris: enable SM8350 and SC8280XP support Date: Thu, 2 Apr 2026 13:32:09 -0500 Message-ID: <20260402183209.27159-1-threeway@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Dmitry, > Thanks for the additional testing! > This might be: > - A bug in the firmware > - A bug in the Gen1 support in the Iris driver. > - A bug in totem (heh). > Would you mind sharing details, which video were you trying to play (at > least, the codec that it used, please). > Also, does it kill the playback afterwards? Can you start another > playing stream afterwards? The video that does not work seems to be Metadata: major_brand : M4V minor_version : 1 compatible_brands: isomavc1mp42 creation_time : 2025-08-04T19:42:21.000000Z Duration: 00:00:35.24, start: 0.000000, bitrate: 6291 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 6126 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default) Metadata: creation_time : 2025-08-04T19:42:21.000000Z handler_name : ETI ISO Video Media Handler vendor_id : [0][0][0][0] encoder : Elemental H.264 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s (default) However, a video that *does* work is Stream #0:0: Video: av1 (libdav1d) (Main), yuv420p(tv, bt709), 1920x1080, 23.98 fps, 23.98 tbr, 1k tbn Metadata: HANDLER_NAME : ISO Media file produced by Google Inc. VENDOR_ID : [0][0][0][0] DURATION : 00:05:16.732000000 Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp, start 0.007000 Metadata: DURATION : 00:05:16.744000000 Stream #0:2: Video: mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1280x720, 90k tbr, 90k tbn (attached pic) Metadata: filename : cover.jpg mimetype : image/jpeg I do not have a ton of videos to test, so I just used 2 that are on my system. This is not just with totem, showtime shows the same issue. If I let the video play, it plays just fine, however, if I attempt to skip forward, back, or even play *after* the video has played, then I see the smmu fault arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0xd51e3e00, fsynr=0x600002, cbfrsynra=0x2a00, cb=6 arm-smmu 15000000.iommu: FSR = 00000402 [Format=2 TF], SID=0x2a00 arm-smmu 15000000.iommu: FSYNR0 = 00600002 [S1CBNDX=96 PLVL=2] qcom-iris aa00000.video-codec: sys error (type: 1, session id:ff, data1:1, data2:deadbead) If I exit and re-launch totem, it will play the video through, but again, if I attempt to skip forward, back or play once it has finished the video, then again the smmu fault occurs. totem and showtime both use gstreamer, and show the issue. showtime replaces totem as the media player on modern gnome systems. mpv and vlc do *not* show the issue, but they also do not appear to use iris/venus at all. Totem is version 43.2-11 Showtime is version 50~rc2 Host system is Kali, which is essentially Debian Testing. -- steev