f39300149ccc starts bisection 2025-01-14 20:32:47.645679401 +0800 CST m=+47.108037554
bisecting cause commit starting from edff5e9a99e0ed9463999455b2604c3154eb7ab3
building syzkaller on HEAD
ensuring issue is reproducible on original commit edff5e9a99e0ed9463999455b2604c3154eb7ab3

testing commit edff5e9a99e0ed9463999455b2604c3154eb7ab3 gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 61de1eaf902f5201d584e22dd361170f49d810716a63746a9a66cfe45c0afe02
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
check whether we can drop unnecessary instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
testing commit edff5e9a99e0ed9463999455b2604c3154eb7ab3 gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 274b6530f985acc263deac2e464a67bc0a3a7e117f4d4639a2b1ba60f37574ce
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
the bug reproduces without the instrumentation
disabling configs for [UBSAN KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK], they are not needed
kconfig minimization: base=4514 full=4514 leaves diff=0
split chunks (needed=false): <0>
split chunk #0 of len 0 into 3 parts
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN], they are not needed
picked [v6.3 v6.2 v6.1 v5.19 v5.17 v5.15 v5.13 v5.11 v5.8 v5.5 v5.2 v4.20 v4.19] out of 26 release tags
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: a779804287adcd2f34140c6e84b6579883a634772926f2f5af3cabcf165d947e
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v6.2
testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: df17d9af113b42cd32b5528e4c3ffcc27c683c0630603ccd4f7d0f4d46cf3461
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 58bc62e340a7de452c1d3c991a5425c9ae5d5a9685864045e1585aef751b354a
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 50f328ddfe0e9e3149a7a86b335523389a2c727c7ad53a0c1245beea8a4f1e72
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Ubuntu 11.4.0-2ubuntu1~20.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: d4e0682da9b0093e8222db8ee35097ed8c9929815ab5a6160f65d25dd39c3f97
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc-10.1.0 (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 2f2f0859622d12b51b55338da61f8733491c9c0697ec9836dd82695688b47f9d
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc
compiler: gcc-10.1.0 (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: 0c23c66071482ad771762654ce4f2eeb6555727870d6358fb26f57afa15bd666
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b gcc
compiler: gcc-10.1.0 (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: c88a2e9abf2f44278b478b869e0f0f0a7687e01f65ab2de518a978dc69ad1c55
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc
compiler: gcc-8.1.0 (Ubuntu 8.4.0-3ubuntu2) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34
kernel signature: efeeb116c7de32d20f43e642334ac5dac302ef05ac8313c518a6b0d2a3e48ef7
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 9ac8a6da21b0cfa2cf9bdd1a723af8224a93ca9cb21341df0da30b108e215d90
all runs: OK
false negative chance: 0.000
# git bisect start bcf876870b95592b52519ed4aafcf9d95999bc9c d5226fa6dbae0569ee43ecfc08bdcd6770fc4755
Bisecting: 23153 revisions left to test after this (roughly 15 steps)
[d8836005236425cf3cfcc8967abd1d5c21f607f8] Merge branch 'for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

testing commit d8836005236425cf3cfcc8967abd1d5c21f607f8 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 6526ff3dd2c8ca156b1e5b450c3f380c46ed64989d093536085acd33f4831f2e
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad d8836005236425cf3cfcc8967abd1d5c21f607f8
Bisecting: 11578 revisions left to test after this (roughly 14 steps)
[94d4d07675fa3aae05b8db8ee2544e196adc2c00] mt76: mt76u: introduce MT_DRV_RX_DMA_HDR flag

testing commit 94d4d07675fa3aae05b8db8ee2544e196adc2c00 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 6b8e97fb8c1d794ace2e2e34f614cdab033e23e83a7274bc871d27531e0cda41
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad 94d4d07675fa3aae05b8db8ee2544e196adc2c00
Bisecting: 6028 revisions left to test after this (roughly 13 steps)
[4cadc60d6bcfee9c626d4b55e9dc1475d21ad3bb] Merge tag 'for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

testing commit 4cadc60d6bcfee9c626d4b55e9dc1475d21ad3bb gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: ae6bde30d40b394d942091b3ce02c65773c6f534447d1b87387054fd69befb5d
all runs: OK
false negative chance: 0.000
# git bisect good 4cadc60d6bcfee9c626d4b55e9dc1475d21ad3bb
Bisecting: 3046 revisions left to test after this (roughly 12 steps)
[846de71bedefb530461ee70ec82f7c810ef14e59] Merge tag 'media/v5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

testing commit 846de71bedefb530461ee70ec82f7c810ef14e59 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: bbbe127953367a80fe5f34f556b00fcc51062a710097f43970262a73fb66bb5b
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad 846de71bedefb530461ee70ec82f7c810ef14e59
Bisecting: 1523 revisions left to test after this (roughly 11 steps)
[f2221a50494037af98206713155c8d4f2e7bccaa] drm/i915: Update DRIVER_DATE to 20200114

testing commit f2221a50494037af98206713155c8d4f2e7bccaa gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e897935433d73c4e514dff1f994a0528bbf2da1ac518da4fb61982f5a1d97f00
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip f2221a50494037af98206713155c8d4f2e7bccaa
Bisecting: 1523 revisions left to test after this (roughly 11 steps)
[d2c6c1077ae2295929f9ee0cfed8c4793a19270e] drm/amdkfd: Only keep release_mem function for Hawaii

testing commit d2c6c1077ae2295929f9ee0cfed8c4793a19270e gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: bab7f9e31efb6d69d08ebe8d0330d8cb5419a2e0a60117a4461f17a70c7d3bc2
all runs: OK
false negative chance: 0.000
# git bisect good d2c6c1077ae2295929f9ee0cfed8c4793a19270e
Bisecting: 1430 revisions left to test after this (roughly 11 steps)
[d5d88cd6ee6b668520c461b960077b5dbd440bc2] Merge tag 'amd-drm-next-5.6-2020-01-09' of git://people.freedesktop.org/~agd5f/linux into drm-next

testing commit d5d88cd6ee6b668520c461b960077b5dbd440bc2 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 6e2b50f30eda95b01ebcb7414c8a3f5e355179788342ecfbe3afa3c76c8ad9d0
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip d5d88cd6ee6b668520c461b960077b5dbd440bc2
Bisecting: 1430 revisions left to test after this (roughly 11 steps)
[98a34d99501042b7e055cdc4b6f65926ecfcf10c] drm/nouveau/nvdec: select implementation based on available fw

testing commit 98a34d99501042b7e055cdc4b6f65926ecfcf10c gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 98a34d99501042b7e055cdc4b6f65926ecfcf10c
Bisecting: 1430 revisions left to test after this (roughly 11 steps)
[7a8fdb1f272b9a3337b10c2d4d8bcca3538aa62c] drm/i915: Change watermark hook calling convention

testing commit 7a8fdb1f272b9a3337b10c2d4d8bcca3538aa62c gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 402f4edd01d9c4bcf92ecc86975b74cf8bcb7d4e5cbf52b9c61a82c7f3bed73d
all runs: OK
false negative chance: 0.000
# git bisect good 7a8fdb1f272b9a3337b10c2d4d8bcca3538aa62c
Bisecting: 1378 revisions left to test after this (roughly 11 steps)
[409d659fe11d778a8f505f909815bc867a27ecbf] drm/nouveau/disp/dp: fix typo when determining failsafe link configuration

testing commit 409d659fe11d778a8f505f909815bc867a27ecbf gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 409d659fe11d778a8f505f909815bc867a27ecbf
Bisecting: 1378 revisions left to test after this (roughly 11 steps)
[0181f4bfbdcdfdf8474946bf14fd644727fb8363] drm/nouveau: reject attempts to submit to dead channels

testing commit 0181f4bfbdcdfdf8474946bf14fd644727fb8363 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 0181f4bfbdcdfdf8474946bf14fd644727fb8363
Bisecting: 1378 revisions left to test after this (roughly 11 steps)
[f053c83ad5c88427644e06746bfddcefa409c27d] Revert "drm/fbdev: Fallback to non tiled mode if all tiles not present"

testing commit f053c83ad5c88427644e06746bfddcefa409c27d gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 1376a999d3a77bb25668267647b1168875a96bbb7fe2ba447390a866553c9ba8
all runs: OK
false negative chance: 0.000
# git bisect good f053c83ad5c88427644e06746bfddcefa409c27d
Bisecting: 1317 revisions left to test after this (roughly 10 steps)
[2c1a180ac12d76d2be3586262552619c0fc1daab] drm/amd/display: Double buffer dcn2 Gamut Remap

testing commit 2c1a180ac12d76d2be3586262552619c0fc1daab gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 2c1a180ac12d76d2be3586262552619c0fc1daab
Bisecting: 1317 revisions left to test after this (roughly 10 steps)
[c81456d2452da72891688edb81d2f0749c2db568] dt-bindings: display: renesas: du: Add vendor prefix to vsps property

testing commit c81456d2452da72891688edb81d2f0749c2db568 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 6ef5e8077c946ff89c93f9b222cfc3b34f85d4b3a9af81915627653c094a1373
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip c81456d2452da72891688edb81d2f0749c2db568
Bisecting: 1317 revisions left to test after this (roughly 10 steps)
[0beb54039d46702a7bc66ee1f36378785b450421] drm/amd/display: update dispclk and dppclk vco frequency

testing commit 0beb54039d46702a7bc66ee1f36378785b450421 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: bab7f9e31efb6d69d08ebe8d0330d8cb5419a2e0a60117a4461f17a70c7d3bc2
all runs: OK
false negative chance: 0.000
# git bisect good 0beb54039d46702a7bc66ee1f36378785b450421
Bisecting: 1143 revisions left to test after this (roughly 10 steps)
[71e7274066c646bb3d9da39d2f4db0a6404c0a2d] Merge tag 'drm-intel-next-2020-01-14' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

testing commit 71e7274066c646bb3d9da39d2f4db0a6404c0a2d gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 764a36f2fe6c6940728c8f6cffcff6b98f562b5140969eb8fc045d559187d2b1
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 71e7274066c646bb3d9da39d2f4db0a6404c0a2d
Bisecting: 1143 revisions left to test after this (roughly 10 steps)
[a771ded8b7ea31f01e239d582c96c9a60bbcaa56] drm/amd/display: add missing dcn link encoder regs

testing commit a771ded8b7ea31f01e239d582c96c9a60bbcaa56 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip a771ded8b7ea31f01e239d582c96c9a60bbcaa56
Bisecting: 1143 revisions left to test after this (roughly 10 steps)
[a6bd811f1209fe1c64c9f6fd578101d6436c6b6e] x86/KVM: Clean up host's steal time structure

testing commit a6bd811f1209fe1c64c9f6fd578101d6436c6b6e gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 919aa9da06ac50ecb225f101e66d2d2532d23c75fe0387b4293ae83d9a98122b
all runs: OK
false negative chance: 0.000
# git bisect good a6bd811f1209fe1c64c9f6fd578101d6436c6b6e
Bisecting: 1138 revisions left to test after this (roughly 10 steps)
[a62aa6f7f50a9a0af5e07d98774f8a7b439d390f] Merge tag 'gfs2-for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

testing commit a62aa6f7f50a9a0af5e07d98774f8a7b439d390f gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 9895310d177596beb78e24fb2e9a17361299a7c16d2dcbb3b4fc1fe3198b108f
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad a62aa6f7f50a9a0af5e07d98774f8a7b439d390f
Bisecting: 1003 revisions left to test after this (roughly 10 steps)
[56822db194232c089601728d68ed078dccb97f8b] drm/scheduler: improve job distribution with multiple queues

testing commit 56822db194232c089601728d68ed078dccb97f8b gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 56822db194232c089601728d68ed078dccb97f8b
Bisecting: 1003 revisions left to test after this (roughly 10 steps)
[b78c57135d470cfc5b461f2abde4eaeb07d100fb] lib/find_bit.c: join _find_next_bit{_le}

testing commit b78c57135d470cfc5b461f2abde4eaeb07d100fb gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 40bbe94a4ef7d37c7a408df88eec3253c2a8b79a875467bf9b9e45565e0d5d03
all runs: OK
false negative chance: 0.000
# git bisect good b78c57135d470cfc5b461f2abde4eaeb07d100fb
Bisecting: 952 revisions left to test after this (roughly 10 steps)
[2d5ef0b42c0bca33aaaff2f1b98855e4e3225a0f] drm/amd/display: Don't disable DP PHY when link loss happens

testing commit 2d5ef0b42c0bca33aaaff2f1b98855e4e3225a0f gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 2d5ef0b42c0bca33aaaff2f1b98855e4e3225a0f
Bisecting: 952 revisions left to test after this (roughly 10 steps)
[8de679abc8ae81463d3fec495a21a6ca0a65bade] Revert "drm/bridge: Add an ->atomic_check() hook"

testing commit 8de679abc8ae81463d3fec495a21a6ca0a65bade gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: d920b61ed76356a3b47d88abf37eef66822ae9062b793800e30fd0fb56042ca3
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 8de679abc8ae81463d3fec495a21a6ca0a65bade
Bisecting: 952 revisions left to test after this (roughly 10 steps)
[e67efd45d6529be2e1a0c1a2c740420c7adeee32] video: omapfb: use const pointer for fb_ops

testing commit e67efd45d6529be2e1a0c1a2c740420c7adeee32 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f51b717187181116ed00b910509ea726db998a62b18f8a5173edb2b517b9f97c
all runs: OK
false negative chance: 0.000
# git bisect good e67efd45d6529be2e1a0c1a2c740420c7adeee32
Bisecting: 924 revisions left to test after this (roughly 10 steps)
[78b10b74030025f6a216a9b10afbe35ab05d32d1] drm/nouveau/gsp: select implementation based on available firmware

testing commit 78b10b74030025f6a216a9b10afbe35ab05d32d1 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 78b10b74030025f6a216a9b10afbe35ab05d32d1
Bisecting: 924 revisions left to test after this (roughly 10 steps)
[0371e2fba42158cb55f6d2c8cf4c9c0821677c0c] drm/amdgpu/smu: add metrics table lock for vega20 (v2)

testing commit 0371e2fba42158cb55f6d2c8cf4c9c0821677c0c gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 0371e2fba42158cb55f6d2c8cf4c9c0821677c0c
Bisecting: 924 revisions left to test after this (roughly 10 steps)
[2b57067a7778484c10892fa191997bfda29fea13] ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag

testing commit 2b57067a7778484c10892fa191997bfda29fea13 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 9ee2214ebcf5387684bcab59e56510d59ec4289c764a93e6c3a3984009cd3a35
all runs: OK
false negative chance: 0.000
# git bisect good 2b57067a7778484c10892fa191997bfda29fea13
Bisecting: 923 revisions left to test after this (roughly 10 steps)
[67e7c6cf8f521463ca8c6f37098dcaf9e391b080] drm/nouveau/acr: add stub implementation for all GPUs currently supported by SECBOOT

testing commit 67e7c6cf8f521463ca8c6f37098dcaf9e391b080 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 67e7c6cf8f521463ca8c6f37098dcaf9e391b080
Bisecting: 923 revisions left to test after this (roughly 10 steps)
[5b1dbb082f196278f82b6a15a13848efacb9ff11] f2fs: set I_LINKABLE early to avoid wrong access by vfs

testing commit 5b1dbb082f196278f82b6a15a13848efacb9ff11 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: efc3a2bb261f1fac72cc3531ae92228388abb56a4b5576a4df98a522919d3be8
all runs: OK
false negative chance: 0.000
# git bisect good 5b1dbb082f196278f82b6a15a13848efacb9ff11
Bisecting: 917 revisions left to test after this (roughly 10 steps)
[22d39fe729fdd21acf9c29c5892a71ede4b7c619] drm/amdgpu: Match TC hash settings to DF settings (v2)

testing commit 22d39fe729fdd21acf9c29c5892a71ede4b7c619 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 22d39fe729fdd21acf9c29c5892a71ede4b7c619
Bisecting: 917 revisions left to test after this (roughly 10 steps)
[cb10bf9194f4d2c5d830eddca861f7ca0fecdbb4] KVM: PPC: Book3S PR: Free shared page if mmu initialization fails

testing commit cb10bf9194f4d2c5d830eddca861f7ca0fecdbb4 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: ee11a596fafb2eb3761099c74bf9053908aab2e2dfc3bda1902ba0742fd8a383
all runs: OK
false negative chance: 0.000
# git bisect good cb10bf9194f4d2c5d830eddca861f7ca0fecdbb4
Bisecting: 877 revisions left to test after this (roughly 10 steps)
[688486a49cf500a193dfe15be9eb5aa468887769] Merge tag 'amd-drm-next-5.6-2020-01-10-dp-mst-dsc' of git://people.freedesktop.org/~agd5f/linux into drm-next

testing commit 688486a49cf500a193dfe15be9eb5aa468887769 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 688486a49cf500a193dfe15be9eb5aa468887769
Bisecting: 877 revisions left to test after this (roughly 10 steps)
[5b5abe9526073ccbf3032d27b5864520829cdd9c] drm/amd/display: make PSR static screen entry within 30 ms

testing commit 5b5abe9526073ccbf3032d27b5864520829cdd9c gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 5b5abe9526073ccbf3032d27b5864520829cdd9c
Bisecting: 877 revisions left to test after this (roughly 10 steps)
[65f6d12c6b0b610c92d6a2c3d964ff2943ac8fbf] drm/i915/gt: Simplify rc6 w/a application

testing commit 65f6d12c6b0b610c92d6a2c3d964ff2943ac8fbf gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 83413c771f02f1ff4215e6e4494100e05a4f746dcc9078bf3a70b3ae860f677a
all runs: OK
false negative chance: 0.000
# git bisect good 65f6d12c6b0b610c92d6a2c3d964ff2943ac8fbf
Bisecting: 840 revisions left to test after this (roughly 10 steps)
[d175e9acf658334a4a0559a30c39c368a38d9dcd] drm/amdgpu: flush TLB functions removal from kfd2kgd interface

testing commit d175e9acf658334a4a0559a30c39c368a38d9dcd gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip d175e9acf658334a4a0559a30c39c368a38d9dcd
Bisecting: 840 revisions left to test after this (roughly 10 steps)
[5d2197466a094cba586d3a169778432ac4febcb8] video: fbdev: mmp: remove duplicated MMP_DISP dependency

testing commit 5d2197466a094cba586d3a169778432ac4febcb8 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: a2b66ea5b931f6e076427d80dbfdc4a5d0d9c98d5de5cfee34182f54a1772488
all runs: OK
false negative chance: 0.000
# git bisect good 5d2197466a094cba586d3a169778432ac4febcb8
Bisecting: 752 revisions left to test after this (roughly 10 steps)
[dd22dfa62c9cb2669ed4b181e359645108c69578] Merge branch 'linux-5.6' of git://github.com/skeggsb/linux into drm-next

testing commit dd22dfa62c9cb2669ed4b181e359645108c69578 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip dd22dfa62c9cb2669ed4b181e359645108c69578
Bisecting: 752 revisions left to test after this (roughly 10 steps)
[93af20f74e8eb4077fecdcc6e8093f13f0059bc9] drm/amdgpu: check if driver should try recovery in ras recovery path

testing commit 93af20f74e8eb4077fecdcc6e8093f13f0059bc9 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 93af20f74e8eb4077fecdcc6e8093f13f0059bc9
Bisecting: 752 revisions left to test after this (roughly 10 steps)
[c81471f5e95c79c55687282ff6800f112b5d560b] drm/i915: Copy across scheduler behaviour flags across submit fences

testing commit c81471f5e95c79c55687282ff6800f112b5d560b gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 2989afefcecfcb095fb2c5926b32e0aff068cd715e8f3a32089a1cd916455c97
all runs: OK
false negative chance: 0.000
# git bisect good c81471f5e95c79c55687282ff6800f112b5d560b
Bisecting: 752 revisions left to test after this (roughly 10 steps)
[8c8a854d6f43aacfaba49c116c426913bf416419] drm/i915/bios: fix off by one in parse_generic_dtd()

testing commit 8c8a854d6f43aacfaba49c116c426913bf416419 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 00090c6f2d945e887b1e2fd184550949f5b3f3577d900744630ba166931efd70
all runs: OK
false negative chance: 0.000
# git bisect good 8c8a854d6f43aacfaba49c116c426913bf416419
Bisecting: 614 revisions left to test after this (roughly 9 steps)
[5d50bd440bc2ff815e9837e4a270fd0c5f3c6f73] drm/udl: Make udl driver depend on CONFIG_USB

testing commit 5d50bd440bc2ff815e9837e4a270fd0c5f3c6f73 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: c2723318b8f40c6903a01dc1cf809388068992c1b2ab60529e08c0625907893a
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 5d50bd440bc2ff815e9837e4a270fd0c5f3c6f73
Bisecting: 614 revisions left to test after this (roughly 9 steps)
[7bdc0c4b812602fb5678dcc477fe03679721e892] msm:disp:dpu1: add support for display for SC7180 target

testing commit 7bdc0c4b812602fb5678dcc477fe03679721e892 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 861947796d90994a692216c2e48ce9b7b26ad522674a80b1c7af6f1e12bef7c3
all runs: OK
false negative chance: 0.000
# git bisect good 7bdc0c4b812602fb5678dcc477fe03679721e892
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[5956f44028f5a0b15f6930256af3d5dbdf1f1f57] drm/i915/display: move clk off sanitize to its own function

testing commit 5956f44028f5a0b15f6930256af3d5dbdf1f1f57 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: c536e4291cecefad495cc2bf9c17db219dc74e14b484339c4ff8151d47463e95
all runs: OK
false negative chance: 0.000
# git bisect good 5956f44028f5a0b15f6930256af3d5dbdf1f1f57
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[36891da8de9822a62d79b64f99e73442efbf3f1d] drm/vmwgfx: Call vmw_driver_{load,unload}() before registering device

testing commit 36891da8de9822a62d79b64f99e73442efbf3f1d gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 764a36f2fe6c6940728c8f6cffcff6b98f562b5140969eb8fc045d559187d2b1
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 36891da8de9822a62d79b64f99e73442efbf3f1d
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[51a19d150b520f6cb42143f3bdffacd3c33d7ac5] drm: atmel-hlcdc: prefer a lower pixel-clock than requested

testing commit 51a19d150b520f6cb42143f3bdffacd3c33d7ac5 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 762e6c371390a2fa4a630024c707d1094a4ef78b0c3796adea983660104e8168
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 51a19d150b520f6cb42143f3bdffacd3c33d7ac5
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[fd67e9c6ed5af223af0daee093593abe3dbb53d4] drm/tegra: Do not implement runtime PM

testing commit fd67e9c6ed5af223af0daee093593abe3dbb53d4 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 80b5640cd06f1b80bee5135efa76d75edbf3d5fbe442bc196337e54920e159c7
all runs: OK
false negative chance: 0.000
# git bisect good fd67e9c6ed5af223af0daee093593abe3dbb53d4
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[186a1fb79c6ce6b52eaa168c64d5f5964a3bd645] drm/amd/display: Change HDR_MULT check

testing commit 186a1fb79c6ce6b52eaa168c64d5f5964a3bd645 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: bab7f9e31efb6d69d08ebe8d0330d8cb5419a2e0a60117a4461f17a70c7d3bc2
all runs: OK
false negative chance: 0.000
# git bisect good 186a1fb79c6ce6b52eaa168c64d5f5964a3bd645
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[955c7120075089b1a84f32fc87c3b18485d57e8d] drm/amdgpu: update UMC 6.1 RAS error counter register access path

testing commit 955c7120075089b1a84f32fc87c3b18485d57e8d gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 955c7120075089b1a84f32fc87c3b18485d57e8d
Bisecting: 602 revisions left to test after this (roughly 9 steps)
[a5ab31767c7782fee743e18fb8e02fcf12f9fa33] drm: msm: a6xx: Dump GBIF registers, debugbus in gpu state

testing commit a5ab31767c7782fee743e18fb8e02fcf12f9fa33 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 861947796d90994a692216c2e48ce9b7b26ad522674a80b1c7af6f1e12bef7c3
all runs: OK
false negative chance: 0.000
# git bisect good a5ab31767c7782fee743e18fb8e02fcf12f9fa33
Bisecting: 594 revisions left to test after this (roughly 9 steps)
[e304adc06ebfa0ea399b181d795f2efc51dcda12] drm/amd/powerplay: implement the get_enabled_mask callback for smu12

testing commit e304adc06ebfa0ea399b181d795f2efc51dcda12 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: bab7f9e31efb6d69d08ebe8d0330d8cb5419a2e0a60117a4461f17a70c7d3bc2
all runs: OK
false negative chance: 0.000
# git bisect good e304adc06ebfa0ea399b181d795f2efc51dcda12
Bisecting: 594 revisions left to test after this (roughly 9 steps)
[9c48c48cd49981051fd210b7248936b65578ce31] MAINTAINERS: Drop James Hogan as MIPS maintainer

testing commit 9c48c48cd49981051fd210b7248936b65578ce31 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: ee11a596fafb2eb3761099c74bf9053908aab2e2dfc3bda1902ba0742fd8a383
all runs: OK
false negative chance: 0.000
# git bisect good 9c48c48cd49981051fd210b7248936b65578ce31
Bisecting: 593 revisions left to test after this (roughly 9 steps)
[d4fb2d76095900952805c07c0067452a1470b85e] drm/i915/gt: runtime-pm is no longer required for ce->ops->pin()

testing commit d4fb2d76095900952805c07c0067452a1470b85e gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: b2c87cfb399a300b241ebc901cc451f26d3aa6c3cb2ed0b5ef7d28f5aa8d8c3e
all runs: OK
false negative chance: 0.000
# git bisect good d4fb2d76095900952805c07c0067452a1470b85e
Bisecting: 583 revisions left to test after this (roughly 9 steps)
[b20414252068263c736d008e536658f9ce13d74a] drm/vmwgfx: Use VM_PFNMAP instead of VM_MIXEDMAP when possible

testing commit b20414252068263c736d008e536658f9ce13d74a gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 764a36f2fe6c6940728c8f6cffcff6b98f562b5140969eb8fc045d559187d2b1
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip b20414252068263c736d008e536658f9ce13d74a
Bisecting: 583 revisions left to test after this (roughly 9 steps)
[d2f925ff9a239a49339d785f721c8cd89b743539] drm/amdgpu/smu: use unified variable smu->is_apu to check apu asic platform

testing commit d2f925ff9a239a49339d785f721c8cd89b743539 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip d2f925ff9a239a49339d785f721c8cd89b743539
Bisecting: 583 revisions left to test after this (roughly 9 steps)
[45fc24e89b7cc2e227b2f03d99dda0a2204bf383] x86/mpx: remove MPX from arch/x86

testing commit 45fc24e89b7cc2e227b2f03d99dda0a2204bf383 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 3f16528bbbc82143a234d15c9c4f9119304cc1007b99d80391076c3f015ee150
all runs: OK
false negative chance: 0.000
# git bisect good 45fc24e89b7cc2e227b2f03d99dda0a2204bf383
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[3e81ee9a78e5df7df46329e0dcfa751b59573bb7] drm/amdgpu: support error reporting for sdma ip block

testing commit 3e81ee9a78e5df7df46329e0dcfa751b59573bb7 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 3e81ee9a78e5df7df46329e0dcfa751b59573bb7
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[d0afe37f5209c7b51a5646ffef578b9d9b383d90] drm/mediatek: support CMDQ interface in ddp component

testing commit d0afe37f5209c7b51a5646ffef578b9d9b383d90 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 80b5640cd06f1b80bee5135efa76d75edbf3d5fbe442bc196337e54920e159c7
all runs: OK
false negative chance: 0.000
# git bisect good d0afe37f5209c7b51a5646ffef578b9d9b383d90
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[2d063981d710391cdea4e8c6483d94b519b1cde2] drm/nouveau/flcn/msgq: drop nvkm_msgqueue argument to functions

testing commit 2d063981d710391cdea4e8c6483d94b519b1cde2 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 2d063981d710391cdea4e8c6483d94b519b1cde2
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[ec5b356c58941bb8930858155d9ce14ceb3d30a0] drm/amd/display: Map ODM memory correctly when doing ODM combine

testing commit ec5b356c58941bb8930858155d9ce14ceb3d30a0 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip ec5b356c58941bb8930858155d9ce14ceb3d30a0
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[9d350c5e5156792ba7c87b3b1e897656dc2a88e5] drm/nouveau/secboot: remove

testing commit 9d350c5e5156792ba7c87b3b1e897656dc2a88e5 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 9d350c5e5156792ba7c87b3b1e897656dc2a88e5
Bisecting: 578 revisions left to test after this (roughly 9 steps)
[f9b84e19221efc5f493156ee0329df3142085f28] KVM: Use vcpu-specific gva->hva translation when querying host page size

testing commit f9b84e19221efc5f493156ee0329df3142085f28 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 8ad6d60ae1985e2a40358dfe46591dbfa73ea3ccd66a887b53ccf99e34ca5841
all runs: OK
false negative chance: 0.000
# git bisect good f9b84e19221efc5f493156ee0329df3142085f28
Bisecting: 500 revisions left to test after this (roughly 9 steps)
[4872e6aa217fbb475ffa0ad7bda0d9acff543f2c] drm/vmwgfx: check master authentication in surface_ref ioctls

testing commit 4872e6aa217fbb475ffa0ad7bda0d9acff543f2c gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 764a36f2fe6c6940728c8f6cffcff6b98f562b5140969eb8fc045d559187d2b1
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 4872e6aa217fbb475ffa0ad7bda0d9acff543f2c
Bisecting: 500 revisions left to test after this (roughly 9 steps)
[895bd048fb0846c912cb896ff58f4341537d0ff1] amd/amdgpu/sriov tdr enablement with pp_onevf_mode

testing commit 895bd048fb0846c912cb896ff58f4341537d0ff1 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 895bd048fb0846c912cb896ff58f4341537d0ff1
Bisecting: 500 revisions left to test after this (roughly 9 steps)
[a62c5b1b6647ea069b8a23cb8edb7925dea89dd8] fs/binfmt_elf.c: don't copy ELF header around

testing commit a62c5b1b6647ea069b8a23cb8edb7925dea89dd8 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 583316abd455866748fafe6420f1e84d5fe72d299e01574d7fcb5c283942237e
all runs: OK
false negative chance: 0.000
# git bisect good a62c5b1b6647ea069b8a23cb8edb7925dea89dd8
Bisecting: 498 revisions left to test after this (roughly 9 steps)
[a26ca967c240c628085142d6569fff69539b44e6] drm/vmwgfx: Replace deprecated PTR_RET

testing commit a26ca967c240c628085142d6569fff69539b44e6 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 764a36f2fe6c6940728c8f6cffcff6b98f562b5140969eb8fc045d559187d2b1
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip a26ca967c240c628085142d6569fff69539b44e6
Bisecting: 498 revisions left to test after this (roughly 9 steps)
[e7ddb878484dcef0abfe318f9f64bfe013d42c04] drm/amdgpu: enable VCN2.5 IP block for Arcturus

testing commit e7ddb878484dcef0abfe318f9f64bfe013d42c04 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip e7ddb878484dcef0abfe318f9f64bfe013d42c04
Bisecting: 498 revisions left to test after this (roughly 9 steps)
[644c8c92adb669bdb2d4b2a271dfa9569ae07ee8] f2fs: fix deadlock allocating bio_post_read_ctx from mempool

testing commit 644c8c92adb669bdb2d4b2a271dfa9569ae07ee8 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: cb0f3e0117f85c2ebfe2e61c14845e2d39cfa4594c902eab53a48de9025eb98b
all runs: OK
false negative chance: 0.000
# git bisect good 644c8c92adb669bdb2d4b2a271dfa9569ae07ee8
Bisecting: 491 revisions left to test after this (roughly 9 steps)
[b3eca59d998587b1930cb846910ec9824b9c2122] drm/amdkfd: queue kfd interrupt work to different CPU

testing commit b3eca59d998587b1930cb846910ec9824b9c2122 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e0983ebe556618bd451c7e3b763ca92d15b762df1d767c35b220add371fb4244
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip b3eca59d998587b1930cb846910ec9824b9c2122
Bisecting: 491 revisions left to test after this (roughly 9 steps)
[0ae59432ba6d647297f2e1bed97139147ce140ac] drm/nouveau/flcn/qmgr: move sequence tracking from nvkm_msgqueue to nvkm_falcon_qmgr

testing commit 0ae59432ba6d647297f2e1bed97139147ce140ac gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: f8e67874258736ab92a09425784db49fcf1d56f58dc477c0112c9a8656a29687
all runs: boot failed: BUG: unable to handle kernel NULL pointer dereference in do_mount_root
unable to determine the verdict: 0 good runs (wanted 2), for bad wanted 2 in total, got 0
# git bisect skip 0ae59432ba6d647297f2e1bed97139147ce140ac
Bisecting: 491 revisions left to test after this (roughly 9 steps)
[7f6225e446cc8dfa4c3c7959a4de3dd03ec277bf] jbd2: clean __jbd2_journal_abort_hard() and __journal_abort_soft()

testing commit 7f6225e446cc8dfa4c3c7959a4de3dd03ec277bf gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: a0b6318c574872ea4a79b83469fbdbe31b26e1d62046d38c4e9e70e6be591456
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad 7f6225e446cc8dfa4c3c7959a4de3dd03ec277bf
Bisecting: 24 revisions left to test after this (roughly 5 steps)
[dd6683e6efad2339894575da46bc519646e37c24] ext4: remove ext4_{ind,ext}_calc_metadata_amount()

testing commit dd6683e6efad2339894575da46bc519646e37c24 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: e98884cbcd2687a9d46fe0f2602bf292d51dfaca8d385561cbba7bbfbc9087ed
all runs: OK
false negative chance: 0.000
# git bisect good dd6683e6efad2339894575da46bc519646e37c24
Bisecting: 11 revisions left to test after this (roughly 4 steps)
[244adf6426ee31a83f397b700d964cff12a247d3] ext4: make dioread_nolock the default

testing commit 244adf6426ee31a83f397b700d964cff12a247d3 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 90fa6a74314ed2d3090aded3d34aa8645eede1ebdeda4dd88754b91f4f5548c8
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad 244adf6426ee31a83f397b700d964cff12a247d3
Bisecting: 6 revisions left to test after this (roughly 3 steps)
[6e89bbb79bc78f31e86a4de1ca3a36474bc3fb62] ext4: fix some nonstandard indentation in extents.c

testing commit 6e89bbb79bc78f31e86a4de1ca3a36474bc3fb62 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: ae6b8bfd576e0bc2466c7371e828ea874b3d51cbcc87adbfbe00e797cf768746
all runs: OK
false negative chance: 0.000
# git bisect good 6e89bbb79bc78f31e86a4de1ca3a36474bc3fb62
Bisecting: 2 revisions left to test after this (roughly 2 steps)
[71b565ceff377a52e7d58cd871745cd339447323] ext4: drop ext4_kvmalloc()

testing commit 71b565ceff377a52e7d58cd871745cd339447323 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: ce07114b22d7f4f876fe93a90f25d5a6e7a1b03978a3a9533bee89e74e47f5af
all runs: OK
false negative chance: 0.000
# git bisect good 71b565ceff377a52e7d58cd871745cd339447323
Bisecting: 0 revisions left to test after this (roughly 1 step)
[4068664e3cd2312610ceac05b74c4cf1853b8325] ext4: fix extent_status fragmentation for plain files

testing commit 4068664e3cd2312610ceac05b74c4cf1853b8325 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: d80e0fd6b4532bd3f0ad3de1b9c660652559057185fd71220877428bb86dab77
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad 4068664e3cd2312610ceac05b74c4cf1853b8325
Bisecting: 0 revisions left to test after this (roughly 0 steps)
[a09decff5c32060639a685581c380f51b14e1fc2] jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal

testing commit a09decff5c32060639a685581c380f51b14e1fc2 gcc
compiler: gcc version 8.4.0 (Ubuntu 8.4.0-3ubuntu2)
kernel signature: 06f0ab0f9cba62da2b89d3b33512e8447ad70659921606688bec64b2aefceddd
all runs: crashed: WARNING in jbd2_journal_update_sb_log_tail
representative crash: WARNING in jbd2_journal_update_sb_log_tail, types: [WARNING]
# git bisect bad a09decff5c32060639a685581c380f51b14e1fc2
a09decff5c32060639a685581c380f51b14e1fc2 is the first bad commit
commit a09decff5c32060639a685581c380f51b14e1fc2
Author: Kai Li <li.kai4@h3c.com>
Date:   Sat Jan 11 10:25:42 2020 +0800

    jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal
    
    If the journal is dirty when the filesystem is mounted, jbd2 will replay
    the journal but the journal superblock will not be updated by
    journal_reset() because JBD2_ABORT flag is still set (it was set in
    journal_init_common()). This is problematic because when a new transaction
    is then committed, it will be recorded in block 1 (journal->j_tail was set
    to 1 in journal_reset()). If unclean shutdown happens again before the
    journal superblock is updated, the new recorded transaction will not be
    replayed during the next mount (because of stale sb->s_start and
    sb->s_sequence values) which can lead to filesystem corruption.
    
    Fixes: 85e0c4e89c1b ("jbd2: if the journal is aborted then don't allow update of the log tail")
    Signed-off-by: Kai Li <li.kai4@h3c.com>
    Link: https://lore.kernel.org/r/20200111022542.5008-1-li.kai4@h3c.com
    Signed-off-by: Theodore Ts'o <tytso@mit.edu>

 fs/jbd2/journal.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

accumulated error probability: 0.00
culprit signature: 06f0ab0f9cba62da2b89d3b33512e8447ad70659921606688bec64b2aefceddd
parent  signature: ce07114b22d7f4f876fe93a90f25d5a6e7a1b03978a3a9533bee89e74e47f5af
revisions tested: 88, total time: 11h6m1.752371688s (build: 3h22m21.831900942s, test: 6h53m47.259327499s)
first bad commit: a09decff5c32060639a685581c380f51b14e1fc2 jbd2: clear JBD2_ABORT flag before journal_reset to update log tail info when load journal
recipients (to): ["li.kai4@h3c.com" "linux-kernel@vger.kernel.org" "tytso@mit.edu"]
recipients (cc): ["jack@suse.com" "linux-ext4@vger.kernel.org" "tytso@mit.edu"]
crash: WARNING in jbd2_journal_update_sb_log_tail
JBD2: Ignoring recovery information on journal
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1429 at fs/jbd2/journal.c:1438 jbd2_journal_update_sb_log_tail+0x120/0x130 fs/jbd2/journal.c:1438
Modules linked in:
CPU: 1 PID: 1429 Comm: syz-executor215 Not tainted 5.5.0-rc3-syzkaller #0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
RIP: 0010:jbd2_journal_update_sb_log_tail+0x120/0x130 fs/jbd2/journal.c:1438
Code: 23 f7 4c 89 e7 e8 b0 d4 34 01 eb b3 e8 29 49 cc ff 48 89 ef e8 01 1f ec ff e9 73 ff ff ff e8 17 49 cc ff 0f 0b e8 10 49 cc ff <0f> 0b eb cb bd fb ff ff ff eb 8a 0f 1f 44 00 00 41 57 41 56 41 55
RSP: 0018:ffa00000045e3be0 EFLAGS: 00010293
RAX: ff1100051ce08000 RBX: ff1100050f7ab000 RCX: ffffffff814e95aa
RDX: 0000000000000000 RSI: ffffffff814e95e0 RDI: 0000000000000005
RBP: 0000000000000000 R08: ff1100051ce08000 R09: ff1100051ce087f8
R10: 00000000000002d6 R11: 0000000000000001 R12: ff1100050f7ab028
R13: 0000000000000000 R14: ff1100051cc14000 R15: ff1100051cc14000
FS:  0000555556fb6880(0000) GS:ff1100052bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdee949d020 CR3: 000000051bc74004 CR4: 0000000000761ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 journal_reset fs/jbd2/journal.c:1343 [inline]
 jbd2_journal_load fs/jbd2/journal.c:1722 [inline]
 jbd2_journal_load+0x42c/0x450 fs/jbd2/journal.c:1671
 ocfs2_journal_load+0x45/0x260 fs/ocfs2/journal.c:1061
 ocfs2_check_volume+0x13c/0x810 fs/ocfs2/super.c:2412
 ocfs2_mount_volume fs/ocfs2/super.c:1827 [inline]
 ocfs2_fill_super+0xdb3/0x1920 fs/ocfs2/super.c:1090
 mount_bdev+0x217/0x260 fs/super.c:1417
 legacy_get_tree+0x31/0x90 fs/fs_context.c:647
 vfs_get_tree+0x2f/0x100 fs/super.c:1547
 do_new_mount fs/namespace.c:2822 [inline]
 do_mount+0xd3b/0x1000 fs/namespace.c:3142
 __do_sys_mount fs/namespace.c:3351 [inline]
 __se_sys_mount fs/namespace.c:3328 [inline]
 __x64_sys_mount+0x13a/0x150 fs/namespace.c:3328
 do_syscall_64+0x75/0x250 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f48b9369a4e
Code: 83 c4 08 5b 5d c3 66 0f 1f 44 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdede82918 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000555556fb6840 RCX: 00007f48b9369a4e
RDX: 0000000020004480 RSI: 00000000200044c0 RDI: 00007ffdede82930
RBP: 00007ffdede82930 R08: 00007ffdede82970 R09: 0000000000004452
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000000
R13: 00007ffdede82970 R14: 0000000000000003 R15: 0000000000000000
---[ end trace db8efd0617dfe7e2 ]---
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.