bisecting fixing commit since d41217aac0a577a247c9c8cde688419fde25fba5 building syzkaller on 5f5f6d14e80b8bd6b42db961118e902387716bcb testing commit d41217aac0a577a247c9c8cde688419fde25fba5 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap testing current HEAD b678c568c561cf7e4ed40f4bcc3e85d2b50310a2 testing commit b678c568c561cf7e4ed40f4bcc3e85d2b50310a2 with gcc (GCC) 8.1.0 all runs: OK # git bisect start b678c568c561cf7e4ed40f4bcc3e85d2b50310a2 d41217aac0a577a247c9c8cde688419fde25fba5 Bisecting: 29665 revisions left to test after this (roughly 15 steps) [17f780b364262ec7ff6d7764bb3f51cd710da7e7] Merge branch 'dpaa2-eth-Add-flow-steering-support-without-masking' testing commit 17f780b364262ec7ff6d7764bb3f51cd710da7e7 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 17f780b364262ec7ff6d7764bb3f51cd710da7e7 Bisecting: 14832 revisions left to test after this (roughly 14 steps) [e4aa592d183228e5fbd3b49a317248c2895d3819] perf cs-etm: Fix erroneous comment testing commit e4aa592d183228e5fbd3b49a317248c2895d3819 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad e4aa592d183228e5fbd3b49a317248c2895d3819 Bisecting: 7024 revisions left to test after this (roughly 13 steps) [e0c38a4d1f196a4b17d2eba36afff8f656a4f1de] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next testing commit e0c38a4d1f196a4b17d2eba36afff8f656a4f1de with gcc (GCC) 8.1.0 all runs: OK # git bisect bad e0c38a4d1f196a4b17d2eba36afff8f656a4f1de Bisecting: 3891 revisions left to test after this (roughly 12 steps) [8e61e7b5c4de2bea534438bd7a008accd85492b0] Merge tag 'sound-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 8e61e7b5c4de2bea534438bd7a008accd85492b0 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 8e61e7b5c4de2bea534438bd7a008accd85492b0 Bisecting: 2003 revisions left to test after this (roughly 11 steps) [2a3c83f5fe0770d13bbb71b23674886ff4111f44] Merge tag 'vmwgfx-next-2018-12-13' of git://people.freedesktop.org/~thomash/linux into drm-next testing commit 2a3c83f5fe0770d13bbb71b23674886ff4111f44 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good 2a3c83f5fe0770d13bbb71b23674886ff4111f44 Bisecting: 1017 revisions left to test after this (roughly 10 steps) [ab63e725b49c80f941446327d79ba5b68593bf5a] Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost testing commit ab63e725b49c80f941446327d79ba5b68593bf5a with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good ab63e725b49c80f941446327d79ba5b68593bf5a Bisecting: 581 revisions left to test after this (roughly 9 steps) [eaa76499711535fd64d747cc4ef0d78ab0fd41c6] Merge tag 'mtd/for-4.21' of git://git.infradead.org/linux-mtd testing commit eaa76499711535fd64d747cc4ef0d78ab0fd41c6 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good eaa76499711535fd64d747cc4ef0d78ab0fd41c6 Bisecting: 290 revisions left to test after this (roughly 8 steps) [d82b51c855a20eb456ac09f2f40ea98312373263] ALSA: HD-Audio: SKL+: force HDaudio legacy or SKL+ driver selection testing commit d82b51c855a20eb456ac09f2f40ea98312373263 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good d82b51c855a20eb456ac09f2f40ea98312373263 Bisecting: 145 revisions left to test after this (roughly 7 steps) [92799ef7209bfd4c8eadb88c2c8f6fcba544b367] media: v4l: Add 4bpp packed depth confidence format CNF4 testing commit 92799ef7209bfd4c8eadb88c2c8f6fcba544b367 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 92799ef7209bfd4c8eadb88c2c8f6fcba544b367 Bisecting: 72 revisions left to test after this (roughly 6 steps) [01a2d72149d867f3e13c2f6cd503aaec02ecd5e5] media: coda: print SEQ_INIT error code as hex value testing commit 01a2d72149d867f3e13c2f6cd503aaec02ecd5e5 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good 01a2d72149d867f3e13c2f6cd503aaec02ecd5e5 Bisecting: 36 revisions left to test after this (roughly 5 steps) [5df317c8786b5ecef9ccb2d8df7b4f6f1bc5dcd1] media: venus: firmware: add routine to reset ARM9 testing commit 5df317c8786b5ecef9ccb2d8df7b4f6f1bc5dcd1 with gcc (GCC) 8.1.0 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor053459512" "root@10.128.1.54:./syz-executor053459512"]: exit status 1 ssh: connect to host 10.128.1.54 port 22: Connection timed out lost connection 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 # git bisect bad 5df317c8786b5ecef9ccb2d8df7b4f6f1bc5dcd1 Bisecting: 17 revisions left to test after this (roughly 4 steps) [40d91c9988af56d7a831df92c58fe28cebb3a764] media: adv7604: add CEC support for adv7611/adv7612 testing commit 40d91c9988af56d7a831df92c58fe28cebb3a764 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good 40d91c9988af56d7a831df92c58fe28cebb3a764 Bisecting: 8 revisions left to test after this (roughly 3 steps) [9729d6d282a6d7ce88e64c9119cecdf79edf4e88] media: vivid: set min width/height to a value > 0 testing commit 9729d6d282a6d7ce88e64c9119cecdf79edf4e88 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good 9729d6d282a6d7ce88e64c9119cecdf79edf4e88 Bisecting: 4 revisions left to test after this (roughly 2 steps) [2912289a518077ddb8214e05336700148e97e235] media: adv*/tc358743/ths8200: fill in min width/height/pixelclock testing commit 2912289a518077ddb8214e05336700148e97e235 with gcc (GCC) 8.1.0 all runs: crashed: WARNING in dma_buf_vunmap # git bisect good 2912289a518077ddb8214e05336700148e97e235 Bisecting: 2 revisions left to test after this (roughly 1 step) [b01783f801e65243afed9012c12343f5d63920eb] media: MAINTAINERS fixups testing commit b01783f801e65243afed9012c12343f5d63920eb with gcc (GCC) 8.1.0 all runs: OK # git bisect bad b01783f801e65243afed9012c12343f5d63920eb Bisecting: 0 revisions left to test after this (roughly 0 steps) [62dcb4f41836bd3c44b5b651bb6df07ea4cb1551] media: vb2: check memory model for VIDIOC_CREATE_BUFS testing commit 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 with gcc (GCC) 8.1.0 all runs: OK # git bisect bad 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 is the first bad commit commit 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 Author: Hans Verkuil Date: Thu Nov 8 07:23:37 2018 -0500 media: vb2: check memory model for VIDIOC_CREATE_BUFS vb2_core_create_bufs did not check if the memory model for newly added buffers is the same as for already existing buffers. It should return an error if they aren't the same. Signed-off-by: Hans Verkuil Reported-by: syzbot+e1fb118a2ebb88031d21@syzkaller.appspotmail.com Cc: # for v4.16 and up Signed-off-by: Mauro Carvalho Chehab :040000 040000 a4e5731e701fbc32bb683b3ee1d522b97acc08f3 0206f155f625b0a69f36343369c3a07eccf73a48 M drivers revisions tested: 18, total time: 4h12m12.133078884s (build: 1h42m7.891620614s, test: 2h24m18.453662203s) first good commit: 62dcb4f41836bd3c44b5b651bb6df07ea4cb1551 media: vb2: check memory model for VIDIOC_CREATE_BUFS cc: ["hverkuil-cisco@xs4all.nl" "kyungmin.park@samsung.com" "linux-kernel@vger.kernel.org" "linux-media@vger.kernel.org" "m.szyprowski@samsung.com" "mchehab+samsung@kernel.org" "mchehab@kernel.org" "pawel@osciak.com" "tfiga@chromium.org"]