bisecting cause commit starting from 7f206cf3ec2bee4621325cfacb2588e5085c07f5 building syzkaller on 76f7fc952d5c6a94c61aa2628568ffddb533272a testing commit 7f206cf3ec2bee4621325cfacb2588e5085c07f5 with gcc (GCC) 10.2.1 20210217 kernel signature: 5730584c85dab76816c5b5d09f8599238f7716578ced6a23860458df27151b11 all runs: crashed: INFO: task can't die in io_sq_thread_finish testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: b47e4715276950756b03b5ad9dbf4728b20992193d0763caa8c0112f7aa0328d all runs: OK # git bisect start 7f206cf3ec2bee4621325cfacb2588e5085c07f5 f40ddce88593482919761f74910f42f4b84c004b Bisecting: 6695 revisions left to test after this (roughly 13 steps) [10e2ec8edece2566b40f69bae035a555ece71ab4] Merge tag 'sound-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 10e2ec8edece2566b40f69bae035a555ece71ab4 with gcc (GCC) 10.2.1 20210217 kernel signature: a5207523c95a618801b0b5f3c1bd78a84107e0c7029f09f00448e34397f8e672 all runs: OK # git bisect good 10e2ec8edece2566b40f69bae035a555ece71ab4 Bisecting: 3349 revisions left to test after this (roughly 12 steps) [54ab35d6bbc0d3175b0a74282c3365c80a43a93c] Merge tag 'livepatching-for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching testing commit 54ab35d6bbc0d3175b0a74282c3365c80a43a93c with gcc (GCC) 10.2.1 20210217 kernel signature: 10c9e618eb22b0f496825c04c2a629c55443fd43367d771543a926a4fcce7652 all runs: OK # git bisect good 54ab35d6bbc0d3175b0a74282c3365c80a43a93c Bisecting: 1698 revisions left to test after this (roughly 11 steps) [489f270ad4bd81818faea212a625ae45a38875dd] Merge remote-tracking branch 'arm/for-next' testing commit 489f270ad4bd81818faea212a625ae45a38875dd with gcc (GCC) 10.2.1 20210217 kernel signature: d09e0cf7a790ac758487cda12398b87f2c037f201e763719636d038d79c18827 all runs: OK # git bisect good 489f270ad4bd81818faea212a625ae45a38875dd Bisecting: 850 revisions left to test after this (roughly 10 steps) [48c1e1e01bc2f6963e646940bebe3bf0377bfce0] Merge remote-tracking branch 'v4l-dvb-next/master' testing commit 48c1e1e01bc2f6963e646940bebe3bf0377bfce0 with gcc (GCC) 10.2.1 20210217 kernel signature: cb040a540dc10e1a557e8555db713f693f834dffbda6c5234f5d560cf986484d all runs: OK # git bisect good 48c1e1e01bc2f6963e646940bebe3bf0377bfce0 Bisecting: 430 revisions left to test after this (roughly 9 steps) [925ab8fc6faa96624dfdfeb45afdd6fcfebac102] Merge remote-tracking branch 'rpmsg/for-next' testing commit 925ab8fc6faa96624dfdfeb45afdd6fcfebac102 with gcc (GCC) 10.2.1 20210217 kernel signature: 38e12c0ff2666dc428e4051a24a144b256e0fa641912a9a24061dad2156befcf all runs: crashed: INFO: task hung in io_sq_thread_finish # git bisect bad 925ab8fc6faa96624dfdfeb45afdd6fcfebac102 Bisecting: 180 revisions left to test after this (roughly 8 steps) [43dfa4fac8c15ddd070c518dd44db9b111b0c0c2] Merge remote-tracking branch 'block/for-next' testing commit 43dfa4fac8c15ddd070c518dd44db9b111b0c0c2 with gcc (GCC) 10.2.1 20210217 kernel signature: fe9968a3a1da2207d2e502e1bc8dacbb556920bb6a7fff9cd6767b69978f856f all runs: crashed: INFO: task hung in io_sq_thread_finish # git bisect bad 43dfa4fac8c15ddd070c518dd44db9b111b0c0c2 Bisecting: 94 revisions left to test after this (roughly 7 steps) [95c72a23fef4915390dd2780876276fda09e2af9] Merge remote-tracking branch 'amdgpu/drm-next' testing commit 95c72a23fef4915390dd2780876276fda09e2af9 with gcc (GCC) 10.2.1 20210217 kernel signature: a0da15b65fe7e3618377d9a4b9398141651703b61258ed0c107a8b35f5a02001 run #0: crashed: SYZFAIL: wrong response packet run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK reproducer seems to be flaky # git bisect bad 95c72a23fef4915390dd2780876276fda09e2af9 Bisecting: 71 revisions left to test after this (roughly 6 steps) [fafada7e1738a9e12c78e2cda1f3c27942d4e083] drm/amdgpu/display: restore AUX_DPHY_TX_CONTROL for DCN2.x testing commit fafada7e1738a9e12c78e2cda1f3c27942d4e083 with gcc (GCC) 10.2.1 20210217 kernel signature: 5c16c97cdbc0e59edfdc51d44f4bdb5bd3eaf91b8fdcb2e63ef1bcca9200cbc1 all runs: OK # git bisect good fafada7e1738a9e12c78e2cda1f3c27942d4e083 Bisecting: 35 revisions left to test after this (roughly 5 steps) [5ca6d0268df8d7a4e1e453bc8a1ee3459fde12a2] drm/msm: remove unneeded variable: "rc" testing commit 5ca6d0268df8d7a4e1e453bc8a1ee3459fde12a2 with gcc (GCC) 10.2.1 20210217 kernel signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 all runs: OK # git bisect good 5ca6d0268df8d7a4e1e453bc8a1ee3459fde12a2 Bisecting: 14 revisions left to test after this (roughly 4 steps) [67edfb88e2f7b5110d3d9952b2511a4d5c23117b] Merge remote-tracking branch 'swiotlb/linux-next' testing commit 67edfb88e2f7b5110d3d9952b2511a4d5c23117b with gcc (GCC) 10.2.1 20210217 kernel signature: dad3b2e62fb3e80a5a718db14c409c56d6291e09a02eddcc67c2ea5c7f9c1a5f all runs: OK # git bisect good 67edfb88e2f7b5110d3d9952b2511a4d5c23117b Bisecting: 8 revisions left to test after this (roughly 3 steps) [583065c7aa23d4bb0c298222c1128353a2007c9c] drm/drm_vblank: set the dma-fence timestamp during send_vblank_event testing commit 583065c7aa23d4bb0c298222c1128353a2007c9c with gcc (GCC) 10.2.1 20210217 kernel signature: 685fa153e5a2bb52899bb08c021e3aeb72364d0a0080f1459e8df834ab22330e all runs: OK # git bisect good 583065c7aa23d4bb0c298222c1128353a2007c9c Bisecting: 4 revisions left to test after this (roughly 2 steps) [182b4a2d251305201b6f9cae29067f7112f05835] drm/msm/dp: Add a missing semi-colon testing commit 182b4a2d251305201b6f9cae29067f7112f05835 with gcc (GCC) 10.2.1 20210217 kernel signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 run #0: crashed: SYZFAIL: wrong response packet run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 182b4a2d251305201b6f9cae29067f7112f05835 Bisecting: 1 revision left to test after this (roughly 1 step) [c8d99bb938d3303989c4988caf090084073e85a2] drm/msm: Fix legacy relocs path testing commit c8d99bb938d3303989c4988caf090084073e85a2 with gcc (GCC) 10.2.1 20210217 kernel signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 run #0: crashed: SYZFAIL: wrong response packet run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad c8d99bb938d3303989c4988caf090084073e85a2 Bisecting: 0 revisions left to test after this (roughly 0 steps) [7df222c35920569c7f31d177a7249c70139008f1] drm/msm/disp/mdp5: mdp5_cfg: Fix msm8974v2 max_clk testing commit 7df222c35920569c7f31d177a7249c70139008f1 with gcc (GCC) 10.2.1 20210217 kernel signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 run #0: crashed: SYZFAIL: wrong response packet run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 7df222c35920569c7f31d177a7249c70139008f1 7df222c35920569c7f31d177a7249c70139008f1 is the first bad commit commit 7df222c35920569c7f31d177a7249c70139008f1 Author: Konrad Dybcio Date: Thu Feb 4 00:15:36 2021 +0100 drm/msm/disp/mdp5: mdp5_cfg: Fix msm8974v2 max_clk The maximum mdp clock rate on msm8974v2 is 320MHz. Fix it. Signed-off-by: Konrad Dybcio Reviewed-by: Abhinav Kumar Signed-off-by: Rob Clark drivers/gpu/drm/msm/disp/mdp5/mdp5_cfg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) culprit signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 parent signature: 830f30dc66fbdb9705cdc43950266bc84ba7d659afbbd9a2ab52d4047f246e81 Reproducer flagged being flaky revisions tested: 16, total time: 4h53m9.546465267s (build: 2h0m33.63557826s, test: 2h50m49.797135822s) first bad commit: 7df222c35920569c7f31d177a7249c70139008f1 drm/msm/disp/mdp5: mdp5_cfg: Fix msm8974v2 max_clk recipients (to): ["abhinavk@codeaurora.org" "konrad.dybcio@somainline.org" "robdclark@chromium.org"] recipients (cc): [] crash: SYZFAIL: wrong response packet 2021/02/26 14:02:19 result: hanged=false err=executor 0: failed to write control pipe: write |1: broken pipe (errno 16: Device or resource busy) SYZFAIL: wrong response packet loop exited with status 67 2021/02/26 14:02:22 executed programs: 31 2021/02/26 14:02:27 executed programs: 156