FYI, you might have seen this problem, but for the record I am reporting here, Following test cases have been failing for a while on the mainline kernel. Please find crash log and git short between bad and good commit. List of failed test cases: v4l2-compliance * VIDIOC_ENUM_FMT-FRAMESIZES-FRAMEINTERVALS * VIDIOC_G_FMT * VIDIOC_S_FMT * VIDIOC_TRY_FMT test output log: ------------------- Format ioctls (Input 0): fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(265): unknown flag 000001e0 returned test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL warn: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(1320): S_PARM is supported for buftype 1, but not for ENUM_FRAMEINTERVALS test VIDIOC_G/S_PARM: OK test VIDIOC_G_FBUF: OK fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(444): pixelformat 56595559 (YUYV) for buftype 1 not reported by ENUM_FMT test VIDIOC_G_FMT: FAIL fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(444): pixelformat 56595559 (YUYV) for buftype 1 not reported by ENUM_FMT test VIDIOC_TRY_FMT: FAIL fail: ../../../v4l-utils-1.18.1/utils/v4l2-compliance/v4l2-test-formats.cpp(444): pixelformat 56595559 (YUYV) for buftype 1 not reported by ENUM_FMT test VIDIOC_S_FMT: FAIL Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> # git log --oneline dfef313e9990..c4439713e82a -- drivers/media/v4l2-core/ 1efe3c28eba1 media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done 463c43fcd97e Merge tag 'v5.9-rc7' into patchwork 1698a7f15112 media: v4l2-mem2mem: simplify poll logic 566463afdbc4 media: v4l2-mem2mem: always consider OUTPUT queue during poll 5823833c9ada media: v4l2-ctrl: Add VP9 codec levels 32b6e400c34d media: v4l2-fwnode: Use debug level for printing link frequencies d13ee586e026 Merge tag 'v5.9-rc4' into patchwork 1faa39e0f3bc media: videobuf-dma-sg: number of pages should be unsigned long 44f5b2fffc32 media: v4l2-ctrl: Add frame-skip std encoder control 4ad1b0d410c8 media: v4l2-ctrls: Add encoder constant quality control d9358563179a media: uapi: h264: Clean slice invariants syntax elements f9879eb37829 media: uapi: h264: Increase size of DPB entry pic_num c02ff21952a6 media: uapi: h264: Clean DPB entry interface eb44c6c9c236 media: uapi: h264: Split prediction weight parameters 911ea8ec42de media: v4l2-mem2mem: add v4l2_m2m_suspend, v4l2_m2m_resume 38df0b850613 media: v4l2-subdev: Introduce [get|set]_mbus_config pad ops Full test log, https://lkft.validation.linaro.org/scheduler/job/1987206#L1664 -- Linaro LKFT https://lkft.linaro.org