bisecting cause commit starting from 9e50b94b3eb0d859a2586b5a40d7fd6e5afd9210
building syzkaller on 510951950dc0ee69cfdaf746061d3dbe31b49fd8
testing commit 9e50b94b3eb0d859a2586b5a40d7fd6e5afd9210 with gcc (GCC) 8.1.0
kernel signature: c1d0036b8da10714c22659af9c6cd82b20073852d67acb79d35c3aa6493df07e
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: 1488ebf52c0ce79dc862c64381761a571d06043eddf6cd561b67c2f9d41e437d
all runs: OK
# git bisect start 9e50b94b3eb0d859a2586b5a40d7fd6e5afd9210 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162
Bisecting: 10675 revisions left to test after this (roughly 13 steps)
[818dbde78e0f4f11c9f804c36913a7ccfc2e87ad] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
testing commit 818dbde78e0f4f11c9f804c36913a7ccfc2e87ad with gcc (GCC) 8.1.0
kernel signature: 6a5948f42aad55521a8aaedd02bae29d64a9fdd1f1db97bdb8ec4afdf6d87b39
all runs: OK
# git bisect good 818dbde78e0f4f11c9f804c36913a7ccfc2e87ad
Bisecting: 5337 revisions left to test after this (roughly 12 steps)
[d5afa9308f0cf3d711e6e4a2c6388c55f8fd3064] Merge branch 'x86/fsgsbase'
testing commit d5afa9308f0cf3d711e6e4a2c6388c55f8fd3064 with gcc (GCC) 8.1.0
kernel signature: 7788b44c5ead3def2177e5b773a8fe1276c5bfa896bae54c2ee1db440de2d984
run #0: boot failed: can't ssh into the instance
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 good d5afa9308f0cf3d711e6e4a2c6388c55f8fd3064
Bisecting: 2283 revisions left to test after this (roughly 11 steps)
[edbe03512b16a177f7b2c49305046a3ed04aeffc] Merge remote-tracking branch 'drm/drm-next'
testing commit edbe03512b16a177f7b2c49305046a3ed04aeffc with gcc (GCC) 8.1.0
kernel signature: 9ea7b32d84263bf40b89235d247f7ebb1e6ff23df6f851a356d9909aec0650e5
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad edbe03512b16a177f7b2c49305046a3ed04aeffc
Bisecting: 1594 revisions left to test after this (roughly 11 steps)
[20f91061b2e9ddd538ae30f84996da6616eb27a3] Merge remote-tracking branch 'rdma/for-next'
testing commit 20f91061b2e9ddd538ae30f84996da6616eb27a3 with gcc (GCC) 8.1.0
kernel signature: e8a8adfcbe00bd603edd407d06f3060aafe961c10c2aedd646420b9903c7babe
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad 20f91061b2e9ddd538ae30f84996da6616eb27a3
Bisecting: 711 revisions left to test after this (roughly 10 steps)
[1ecd76f4b950b8c46362b3823f6e8f44e23f7dc8] Merge remote-tracking branch 'clk/clk-next'
testing commit 1ecd76f4b950b8c46362b3823f6e8f44e23f7dc8 with gcc (GCC) 8.1.0
kernel signature: 5ad454a89c9b78f2b9c415ec21aa8f70593960e870b3b388684aec867b727090
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad 1ecd76f4b950b8c46362b3823f6e8f44e23f7dc8
Bisecting: 365 revisions left to test after this (roughly 9 steps)
[a012f190c3e03028ebd916ba3507664d0f9109ab] Merge remote-tracking branch 'imx-mxs/for-next'
testing commit a012f190c3e03028ebd916ba3507664d0f9109ab with gcc (GCC) 8.1.0
kernel signature: 1d0943fccf9c65b9e24d60186d8c4106e5b3df2c24c171dafb49bbc8e893a79a
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad a012f190c3e03028ebd916ba3507664d0f9109ab
Bisecting: 190 revisions left to test after this (roughly 8 steps)
[d3f1828cbb7ec4cec4de612672422adbebb22d3c] Merge remote-tracking branch 'usb-serial-fixes/usb-linus'
testing commit d3f1828cbb7ec4cec4de612672422adbebb22d3c with gcc (GCC) 8.1.0
kernel signature: 2155d81196237bbe27664d69ea08135024c10d4ba5a49294fc9de91a6315c036
all runs: OK
# git bisect good d3f1828cbb7ec4cec4de612672422adbebb22d3c
Bisecting: 106 revisions left to test after this (roughly 7 steps)
[3383f98d29798f1e0692794fa7d2424d2168a469] Merge remote-tracking branch 'scsi-fixes/fixes'
testing commit 3383f98d29798f1e0692794fa7d2424d2168a469 with gcc (GCC) 8.1.0
kernel signature: 3d29b3c998548d04e125ec2ec0e1f6e27ed34ba1d3235b46c13083d24e2cc445
all runs: OK
# git bisect good 3383f98d29798f1e0692794fa7d2424d2168a469
Bisecting: 53 revisions left to test after this (roughly 6 steps)
[e6853868570d19f80704b8a651ddcfbb587ed6ca] Merge remote-tracking branch 'arm/for-next'
testing commit e6853868570d19f80704b8a651ddcfbb587ed6ca with gcc (GCC) 8.1.0
kernel signature: 575a600c3175ac79bcd209005649ef787f8c6499c17d88b96ac6a5566d69d67a
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad e6853868570d19f80704b8a651ddcfbb587ed6ca
Bisecting: 26 revisions left to test after this (roughly 5 steps)
[a49f8eb2af008cd034243c0e4b69088aaf6d6848] Merge remote-tracking branch 'drm-fixes/drm-fixes'
testing commit a49f8eb2af008cd034243c0e4b69088aaf6d6848 with gcc (GCC) 8.1.0
kernel signature: 7474e053a98afb4e90aa3fb6f8199a5bf15d4dabd9096b127cd7e6c766eb66e9
run #0: OK
run #1: boot failed: can't ssh into the instance
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 good a49f8eb2af008cd034243c0e4b69088aaf6d6848
Bisecting: 11 revisions left to test after this (roughly 4 steps)
[29dbc0a7c3d1bbca1424f6d85c204ae71b9f10a1] Merge remote-tracking branch 'drm-misc-fixes/for-linux-next-fixes'
testing commit 29dbc0a7c3d1bbca1424f6d85c204ae71b9f10a1 with gcc (GCC) 8.1.0
kernel signature: a57b07db6d225651932cd7aa9182b39bee769b1a4e8a13b61db9cbe8a65e901c
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in dma_buf_release
# git bisect bad 29dbc0a7c3d1bbca1424f6d85c204ae71b9f10a1
Bisecting: 8 revisions left to test after this (roughly 3 steps)
[72fd7c7890d652afb65ee636e26624509cfed5eb] Merge remote-tracking branch 'pinctrl-intel-fixes/fixes'
testing commit 72fd7c7890d652afb65ee636e26624509cfed5eb with gcc (GCC) 8.1.0
kernel signature: 0cfc56fd13c2f6aca6be867867ad9879a49d7e0c6a57d7c64405238be5ad47dc
run #0: OK
run #1: boot failed: can't ssh into the instance
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 good 72fd7c7890d652afb65ee636e26624509cfed5eb
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[c63d2dd7e134ebddce4745c51f9572b3f0d92b26] Documentation: kunit: Add some troubleshooting tips to the FAQ
testing commit c63d2dd7e134ebddce4745c51f9572b3f0d92b26 with gcc (GCC) 8.1.0
kernel signature: 2773c4dcc5bb53934f74642e00f6c0a99fc2ec3d6dee6e63b86126bbe3a3d722
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip c63d2dd7e134ebddce4745c51f9572b3f0d92b26
Bisecting: 4 revisions left to test after this (roughly 2 steps)
[f3af6d6fbb72afe11d9140f738294815ab167ef8] Merge remote-tracking branch 'kunit-fixes/kunit-fixes'
testing commit f3af6d6fbb72afe11d9140f738294815ab167ef8 with gcc (GCC) 8.1.0
kernel signature: ec83168d55e56c0fa5c6dfeb1c24c90c3fe3e6d5f1d25ca9a87a21d7be9b379c
run #0: OK
run #1: boot failed: can't ssh into the instance
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 good f3af6d6fbb72afe11d9140f738294815ab167ef8
Bisecting: 1 revision left to test after this (roughly 1 step)
[bda8eaa6dee7525f4dac950810a85a88bf6c2ba0] drm: sun4i: hdmi: Remove extra HPD polling
testing commit bda8eaa6dee7525f4dac950810a85a88bf6c2ba0 with gcc (GCC) 8.1.0
kernel signature: a44b15f46b34a10c43f03b602d063c8463cd3145723aa10d70db4a422c47e3f3
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip bda8eaa6dee7525f4dac950810a85a88bf6c2ba0
Bisecting: 1 revision left to test after this (roughly 1 step)
[17f64701ea6f541db7eb5d7423a830cb929b3052] drm/meson: viu: fix setting the OSD burst length in VIU_OSD1_FIFO_CTRL_STAT
testing commit 17f64701ea6f541db7eb5d7423a830cb929b3052 with gcc (GCC) 8.1.0
kernel signature: 61f9a9d7a69ab542854b6a7183536928935cd29a921a32474aaa12a672e65d6a
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 17f64701ea6f541db7eb5d7423a830cb929b3052
Bisecting: 1 revision left to test after this (roughly 1 step)
[4ab59c3c638c6c8952bf07739805d20eb6358a4d] dma-buf: Move dma_buf_release() from fops to dentry_ops
testing commit 4ab59c3c638c6c8952bf07739805d20eb6358a4d with gcc (GCC) 8.1.0
kernel signature: dc82086105b26202c3627b1f33490ef4eab8070fe897febd55454d57923b3f32
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 4ab59c3c638c6c8952bf07739805d20eb6358a4d
There are only 'skip'ped commits left to test.
The first bad commit could be any of:
bda8eaa6dee7525f4dac950810a85a88bf6c2ba0
17f64701ea6f541db7eb5d7423a830cb929b3052
4ab59c3c638c6c8952bf07739805d20eb6358a4d
29dbc0a7c3d1bbca1424f6d85c204ae71b9f10a1
We cannot bisect more!
revisions tested: 19, total time: 3h54m31.886491899s (build: 1h50m39.581522723s, test: 2h1m10.198175457s)
bisection is inconclusive, the first bad commit could be any of:
bda8eaa6dee7525f4dac950810a85a88bf6c2ba0
17f64701ea6f541db7eb5d7423a830cb929b3052
4ab59c3c638c6c8952bf07739805d20eb6358a4d
29dbc0a7c3d1bbca1424f6d85c204ae71b9f10a1