bisecting fixing commit since addb0679839a1f74da6ec742137558be244dd0e9 building syzkaller on 7795ae03c0d2358a40130693e40e0fcab5232ed2 testing commit addb0679839a1f74da6ec742137558be244dd0e9 with gcc (GCC) 8.1.0 run #0: crashed: possible deadlock in neigh_change_state run #1: crashed: WARNING: locking bug in corrupted run #2: crashed: WARNING: possible circular locking dependency detected run #3: crashed: possible deadlock in neigh_change_state run #4: crashed: possible deadlock in neigh_change_state run #5: crashed: possible deadlock in neigh_change_state run #6: crashed: possible deadlock in neigh_change_state run #7: crashed: possible deadlock in neigh_change_state run #8: crashed: possible deadlock in neigh_change_state run #9: crashed: possible deadlock in neigh_change_state testing current HEAD ca497fb6aa9fbd3b0a87fd0a71e9e1df2600ac30 testing commit ca497fb6aa9fbd3b0a87fd0a71e9e1df2600ac30 with gcc (GCC) 8.1.0 all runs: OK # git bisect start ca497fb6aa9fbd3b0a87fd0a71e9e1df2600ac30 addb0679839a1f74da6ec742137558be244dd0e9 Bisecting: 28571 revisions left to test after this (roughly 15 steps) [ff24e4980a68d83090a02fda081741a410fe8eef] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net testing commit ff24e4980a68d83090a02fda081741a410fe8eef with gcc (GCC) 8.1.0 all runs: OK # git bisect bad ff24e4980a68d83090a02fda081741a410fe8eef Bisecting: 14306 revisions left to test after this (roughly 14 steps) [4b89251de024fb85329e4cbd8fbea551ae6c665c] net/mlx5: Support ndo bridge_setlink and getlink testing commit 4b89251de024fb85329e4cbd8fbea551ae6c665c with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 4b89251de024fb85329e4cbd8fbea551ae6c665c Bisecting: 7140 revisions left to test after this (roughly 13 steps) [579a70035949b771a63a686db8becdd9b197d986] Merge tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply testing commit 579a70035949b771a63a686db8becdd9b197d986 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 579a70035949b771a63a686db8becdd9b197d986 Bisecting: 3567 revisions left to test after this (roughly 12 steps) [460023a5d1d2aa0f733b6708b2fae5ea9f9dfec0] Merge tag 'for-linus-4.21-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip testing commit 460023a5d1d2aa0f733b6708b2fae5ea9f9dfec0 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 460023a5d1d2aa0f733b6708b2fae5ea9f9dfec0 Bisecting: 1658 revisions left to test after this (roughly 11 steps) [4971f090aa7f6ce5daa094ce4334f6618f93a7eb] Merge tag 'drm-next-2018-12-14' of git://anongit.freedesktop.org/drm/drm testing commit 4971f090aa7f6ce5daa094ce4334f6618f93a7eb with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 4971f090aa7f6ce5daa094ce4334f6618f93a7eb Bisecting: 974 revisions left to test after this (roughly 10 steps) [0660d8cd83938ef5cc91582fe6f951e8935f2d0f] drm: Fix docs warning in drm_damage_helper.c testing commit 0660d8cd83938ef5cc91582fe6f951e8935f2d0f with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 0660d8cd83938ef5cc91582fe6f951e8935f2d0f Bisecting: 521 revisions left to test after this (roughly 9 steps) [f48cc647f3e196a3179d695d3c2d56c13e9dec98] drm/i915/fixed: cosmetic cleanup testing commit f48cc647f3e196a3179d695d3c2d56c13e9dec98 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad f48cc647f3e196a3179d695d3c2d56c13e9dec98 Bisecting: 211 revisions left to test after this (roughly 8 steps) [caef29cd072de3d33dc91258879201e9579d3c79] drm/i915/guc: fix comment about fallback to execlists testing commit caef29cd072de3d33dc91258879201e9579d3c79 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad caef29cd072de3d33dc91258879201e9579d3c79 Bisecting: 105 revisions left to test after this (roughly 7 steps) [a86d2590bafb74705dff7159dea84a24c6a5afcb] drm/i915: s/intel_plane/plane/ in sprite init testing commit a86d2590bafb74705dff7159dea84a24c6a5afcb with gcc (GCC) 8.1.0 all runs: OK # git bisect bad a86d2590bafb74705dff7159dea84a24c6a5afcb Bisecting: 52 revisions left to test after this (roughly 6 steps) [e2f3496e93be3238de2e2e6bfc83b3a83c084ce5] drm/i915: Pull scheduling under standalone lock testing commit e2f3496e93be3238de2e2e6bfc83b3a83c084ce5 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad e2f3496e93be3238de2e2e6bfc83b3a83c084ce5 Bisecting: 26 revisions left to test after this (roughly 5 steps) [6323113b7af6ef2f095f159752b06e83a64d8b9a] drm/i915: Move SKL IPC WA to HAS_IPC() testing commit 6323113b7af6ef2f095f159752b06e83a64d8b9a with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 6323113b7af6ef2f095f159752b06e83a64d8b9a Bisecting: 12 revisions left to test after this (roughly 4 steps) [8db05f5947132bc69c8ad3fe65753400888aa483] drm/i915/execlists: Assert the queue is non-empty on unsubmitting testing commit 8db05f5947132bc69c8ad3fe65753400888aa483 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 8db05f5947132bc69c8ad3fe65753400888aa483 Bisecting: 6 revisions left to test after this (roughly 3 steps) [0aaf29b35f93f68128f92ea826ebfee8df9ab1ef] drm/i915: Clean up scaler setup, v2. testing commit 0aaf29b35f93f68128f92ea826ebfee8df9ab1ef with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 0aaf29b35f93f68128f92ea826ebfee8df9ab1ef Bisecting: 2 revisions left to test after this (roughly 2 steps) [62ef0dd3cc0c217c3d58a1e92577c66c08598f7b] drm/i915: Unconditionally clear plane visibility, v2. testing commit 62ef0dd3cc0c217c3d58a1e92577c66c08598f7b with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 62ef0dd3cc0c217c3d58a1e92577c66c08598f7b Bisecting: 0 revisions left to test after this (roughly 1 step) [c249c5f64336ca7f8b314c16dbf440b091514f50] drm/i915: Handle cursor updating active_planes correctly, v2. testing commit c249c5f64336ca7f8b314c16dbf440b091514f50 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad c249c5f64336ca7f8b314c16dbf440b091514f50 Bisecting: 0 revisions left to test after this (roughly 0 steps) [a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9] drm/i915: Clean up casts to crtc_state in intel_atomic_commit_tail() testing commit a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9 a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9 is the first bad commit commit a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9 Author: Maarten Lankhorst Date: Thu Sep 20 12:27:04 2018 +0200 drm/i915: Clean up casts to crtc_state in intel_atomic_commit_tail() Use old/new_intel_crtc_state, and get rid of all the conversion casts where they don't add anything. Signed-off-by: Maarten Lankhorst Reviewed-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20180920102711.4184-2-maarten.lankhorst@linux.intel.com :040000 040000 b95a61d70813b539f18311d9ebbdfc3ef81a1d56 91f4c637694918e3af8478784d2553fa429e6f89 M drivers revisions tested: 18, total time: 4h56m37.473998529s (build: 1h43m13.941453089s, test: 3h6m36.170093406s) first good commit: a1cccdcf330e2a59b72b1588a7ef87cbaaa8a4e9 drm/i915: Clean up casts to crtc_state in intel_atomic_commit_tail() cc: ["airlied@linux.ie" "daniel@ffwll.ch" "dri-devel@lists.freedesktop.org" "intel-gfx@lists.freedesktop.org" "jani.nikula@linux.intel.com" "joonas.lahtinen@linux.intel.com" "linux-kernel@vger.kernel.org" "maarten.lankhorst@linux.intel.com" "matthew.d.roper@intel.com" "rodrigo.vivi@intel.com"]