bisecting cause commit starting from 4438669eb703d1a7416c2b19a8a15b0400b36738
building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9
testing commit 4438669eb703d1a7416c2b19a8a15b0400b36738 with gcc (GCC) 10.2.1 20210217
kernel signature: 7c03e5e54663d8c4a686f38d98e10aaba5b6cb01516e768c6a4b639c447278b7
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217
kernel signature: 0f3c1837f4dfe64969c4bc941acbd990cc700391e4774b889e5ff798e68c350c
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217
kernel signature: 45351986ab4f7e2ffa588cbb8002553c0f0ffc0f4804c7e8ea1b1e1189dabf4b
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217
kernel signature: ad0b0b6275b4c2025aff33985cc5dc977cd00c80a45c0b559be390554afd3106
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217
kernel signature: be3bf64685d71e06c920ec95ed5cadd9d0988b73683d12046579ee967c67df02
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217
kernel signature: 82224589df8468e91bb0a65ee3ae9007a07ca00d4aef33b388c095fe0639fdc5
all runs: OK
# git bisect start bcf876870b95592b52519ed4aafcf9d95999bc9c 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162
Bisecting: 8752 revisions left to test after this (roughly 13 steps)
[694b5a5d313f3997764b67d52bab66ec7e59e714] Merge tag 'arm-soc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

testing commit 694b5a5d313f3997764b67d52bab66ec7e59e714 with gcc (GCC) 8.4.1 20210217
kernel signature: cf32a8dc7bdecd996dbb8c66b14fc683c572f0e4b7bc71674c92f6261dc081b9
all runs: OK
# git bisect good 694b5a5d313f3997764b67d52bab66ec7e59e714
Bisecting: 4379 revisions left to test after this (roughly 12 steps)
[595a56ac1b0d5f0a16a89589ef55ffd35c1967a2] Merge tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

testing commit 595a56ac1b0d5f0a16a89589ef55ffd35c1967a2 with gcc (GCC) 8.4.1 20210217
kernel signature: d1db30b090242d025f05e3c6ec09c08031650797b1823c8b1e3d3b5ea7854788
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 595a56ac1b0d5f0a16a89589ef55ffd35c1967a2
Bisecting: 4379 revisions left to test after this (roughly 12 steps)
[5b83c254571b26e6b6110019929dc9729e5c59d1] Merge tag 'amd-drm-fixes-5.8-2020-06-24' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

testing commit 5b83c254571b26e6b6110019929dc9729e5c59d1 with gcc (GCC) 8.4.1 20210217
kernel signature: e42fd89afb9e520458cb75738ffe34be93c09580b3ea72b47e7de0640dfbadc6
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 5b83c254571b26e6b6110019929dc9729e5c59d1
Bisecting: 4379 revisions left to test after this (roughly 12 steps)
[36d48981d6adf2d3a1d9713df7c145b6f4b4ef22] arm64: dts: juno: Fix GPU interrupt order

testing commit 36d48981d6adf2d3a1d9713df7c145b6f4b4ef22 with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 36d48981d6adf2d3a1d9713df7c145b6f4b4ef22
Bisecting: 4379 revisions left to test after this (roughly 12 steps)
[817d914d17651c188f28a284261ff6091d80ad2c] Merge tag 'selinux-pr-20200621' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

testing commit 817d914d17651c188f28a284261ff6091d80ad2c with gcc (GCC) 8.4.1 20210217
kernel signature: 508fd29f52d53d2cacf05454efb7920b17cf0939108b0af589d3c43934ed2a94
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 817d914d17651c188f28a284261ff6091d80ad2c
Bisecting: 4379 revisions left to test after this (roughly 12 steps)
[8a45fe7053a2c33b786706bdcd77d7ccf1531ef7] samples: uhid: fix warnings in uhid-example

testing commit 8a45fe7053a2c33b786706bdcd77d7ccf1531ef7 with gcc (GCC) 8.4.1 20210217
kernel signature: bfb07cb7c6727daa5734ee8204d52e115eefdf5fd5c63d2151a0608280d06150
all runs: OK
# git bisect good 8a45fe7053a2c33b786706bdcd77d7ccf1531ef7
Bisecting: 4364 revisions left to test after this (roughly 12 steps)
[d1e521adad250ab8c979861c857fa2b1542c9741] Merge tag 'trace-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

testing commit d1e521adad250ab8c979861c857fa2b1542c9741 with gcc (GCC) 8.4.1 20210217
kernel signature: 1db3e639d2b7cbf08ba99c87f64d15a3af81ce1eb085a335c6de33dc03be33c8
run #0: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #1: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_ext_map_blocks
run #2: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #3: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #4: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #5: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #6: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #7: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #8: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
run #9: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip d1e521adad250ab8c979861c857fa2b1542c9741
Bisecting: 4364 revisions left to test after this (roughly 12 steps)
[fa94111d94354de76c47fea6e1187d1ee91e23a7] x86: use non-set_fs based maccess routines

testing commit fa94111d94354de76c47fea6e1187d1ee91e23a7 with gcc (GCC) 8.4.1 20210217
kernel signature: c7559b6710bca3128f1b9387d93bd461d78c38336396cc98a8801189b43ee2ff
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip fa94111d94354de76c47fea6e1187d1ee91e23a7
Bisecting: 4364 revisions left to test after this (roughly 12 steps)
[409b62942019333a1a435cc9e6a9f20282e38459] Merge tag 'ux500-dts-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into arm/dt

testing commit 409b62942019333a1a435cc9e6a9f20282e38459 with gcc (GCC) 8.4.1 20210217
kernel signature: 2bace831106caded837bf249341b90a7a85babc65d841fa93b219390c39b36f6
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 409b62942019333a1a435cc9e6a9f20282e38459
Bisecting: 4364 revisions left to test after this (roughly 12 steps)
[0e86d981f9b7252e9716c5137cd8e4d9ad8ef32f] PCI: endpoint: functions/pci-epf-test: Fix DMA channel release

testing commit 0e86d981f9b7252e9716c5137cd8e4d9ad8ef32f with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 0e86d981f9b7252e9716c5137cd8e4d9ad8ef32f
Bisecting: 4364 revisions left to test after this (roughly 12 steps)
[5876aa073f52541f4787b6111c8494ea9cfcde15] Merge tag 'nfsd-5.8-2' of git://linux-nfs.org/~bfields/linux into master

testing commit 5876aa073f52541f4787b6111c8494ea9cfcde15 with gcc (GCC) 8.4.1 20210217
kernel signature: 8af34f1f03853ee767c2a3ff76a86abea10e3e003cc811647ed09c1a8701ff0a
all runs: crashed: kernel BUG in llc_sap_action_send_xid_c
# git bisect bad 5876aa073f52541f4787b6111c8494ea9cfcde15
Bisecting: 4150 revisions left to test after this (roughly 12 steps)
[ca687877e05ad1bf5b4cefd9cdd091044626deac] Merge tag 'gfs2-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

testing commit ca687877e05ad1bf5b4cefd9cdd091044626deac with gcc (GCC) 8.4.1 20210217
kernel signature: 104d19f1423ca1ca6cddb14c00643f192e128c7b0acf8682c2a00e94ca653d28
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip ca687877e05ad1bf5b4cefd9cdd091044626deac
Bisecting: 4150 revisions left to test after this (roughly 12 steps)
[2f29298bc2d9679685b2c9bc7293b43d57fe14f4] phy: qcom: qmp: Add SM8250 UFS PHY

testing commit 2f29298bc2d9679685b2c9bc7293b43d57fe14f4 with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 2f29298bc2d9679685b2c9bc7293b43d57fe14f4
Bisecting: 4150 revisions left to test after this (roughly 12 steps)
[2e11cc1ab790ccbc7c7f6ed74c0f40b85c561dc7] staging: vt6656: Use const for read only data

testing commit 2e11cc1ab790ccbc7c7f6ed74c0f40b85c561dc7 with gcc (GCC) 8.4.1 20210217
kernel signature: f325a36d7cb26f0bd892d76c242622347cb462764029333cbfaacf63e09a0196
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 2e11cc1ab790ccbc7c7f6ed74c0f40b85c561dc7
Bisecting: 4150 revisions left to test after this (roughly 12 steps)
[a19f6efc01df901c16a57455485613236eaad55e] ARM: dts: exynos: Enable WLAN support for the Trats board

testing commit a19f6efc01df901c16a57455485613236eaad55e with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip a19f6efc01df901c16a57455485613236eaad55e
Bisecting: 4150 revisions left to test after this (roughly 12 steps)
[c630fa6e7bb67a23c715be90944b1831d6b01dd0] staging: rtl8188eu: make some arrays static const

testing commit c630fa6e7bb67a23c715be90944b1831d6b01dd0 with gcc (GCC) 8.4.1 20210217
kernel signature: 5e06dd2cbadbafaeee95e7ebdca95ddd5c11f3472dd3b87ef58512d42c7e6fb9
all runs: OK
# git bisect good c630fa6e7bb67a23c715be90944b1831d6b01dd0
Bisecting: 3854 revisions left to test after this (roughly 12 steps)
[4964dd29140a44e26474dbdca559b7393aba6c39] Merge tag 'afs-fixes-20200609' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

testing commit 4964dd29140a44e26474dbdca559b7393aba6c39 with gcc (GCC) 8.4.1 20210217
kernel signature: aed6dbedd884d003965d2f805025ea31e8d6f8db1eaa1724dd55c8a85dcb0de3
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 4964dd29140a44e26474dbdca559b7393aba6c39
Bisecting: 3854 revisions left to test after this (roughly 12 steps)
[dd5e3fbc1f472951afd7e7643ace5d1672b31358] NFSD: Add tracepoints to the NFSD state management code

testing commit dd5e3fbc1f472951afd7e7643ace5d1672b31358 with gcc (GCC) 8.4.1 20210217
kernel signature: 96c5531e442d3bf261422ceafd7b74f138522bce86e5ec2da7790f626bbf73ee
all runs: OK
# git bisect good dd5e3fbc1f472951afd7e7643ace5d1672b31358
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[42612e7763315cf5d43c4422781e75f9ee57597a] Merge tag 'f2fs-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

testing commit 42612e7763315cf5d43c4422781e75f9ee57597a with gcc (GCC) 8.4.1 20210217
kernel signature: 82a9a9030e8ed5e3700360d410339c4bd8a7cd68e3c40e2f34aaa3c428a9e769
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 42612e7763315cf5d43c4422781e75f9ee57597a
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[c7e261d81783387a0502878cd229327e7c54322e] net: mdiobus: Disable preemption upon u64_stats update

testing commit c7e261d81783387a0502878cd229327e7c54322e with gcc (GCC) 8.4.1 20210217
kernel signature: 82d172b4ff90172ef9077aad1809d6ac0eb1da12bb1559c74bec235a4b23ce38
all runs: OK
# git bisect good c7e261d81783387a0502878cd229327e7c54322e
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[fa5e5c409213265da8a188b4a5e4e641b1382eb4] x86/entry: Use idtentry for interrupts

testing commit fa5e5c409213265da8a188b4a5e4e641b1382eb4 with gcc (GCC) 8.4.1 20210217
kernel signature: aaee948690ac6ac30aae42d95c2c36b3ac7e0e0a78ec2dac015ef9e7d30044c2
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip fa5e5c409213265da8a188b4a5e4e641b1382eb4
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[d04996eac538611c1ac1fb7759d379f0d9358f74] Merge tag 'samsung-pinctrl-5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/samsung into devel

testing commit d04996eac538611c1ac1fb7759d379f0d9358f74 with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip d04996eac538611c1ac1fb7759d379f0d9358f74
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[a7ba121215faad444f94db5e89eb5d7dfc58ecb2] arm64: use asm-generic/cacheflush.h

testing commit a7ba121215faad444f94db5e89eb5d7dfc58ecb2 with gcc (GCC) 8.4.1 20210217
kernel signature: 1e24e4773663812d1e7505c37ff49c074dc39d0e6e05f7cc2482b86d23ef564e
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip a7ba121215faad444f94db5e89eb5d7dfc58ecb2
Bisecting: 3833 revisions left to test after this (roughly 12 steps)
[19acd03d95dad1f50d06f28179a1866fca431fed] kcsan: Add __kcsan_{enable,disable}_current() variants

testing commit 19acd03d95dad1f50d06f28179a1866fca431fed with gcc (GCC) 8.4.1 20210217
kernel signature: 70357725df38a5eeffeaae58f34710714ee49898c2b4cb84c6c187548a843ee3
all runs: OK
# git bisect good 19acd03d95dad1f50d06f28179a1866fca431fed
Bisecting: 3814 revisions left to test after this (roughly 12 steps)
[ad57a1022f9e050a09812d975874b94b4fcb0f46] Merge tag 'exfat-for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

testing commit ad57a1022f9e050a09812d975874b94b4fcb0f46 with gcc (GCC) 8.4.1 20210217
kernel signature: 64851a4f7877950e64334f44be27fee0280f70b17cb63e06b4dbb9a3216e791b
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip ad57a1022f9e050a09812d975874b94b4fcb0f46
Bisecting: 3814 revisions left to test after this (roughly 12 steps)
[781c90c034d994c6a4e2badf189128a95ed864c2] ALSA: hda/realtek: Enable headset mic of Acer Veriton N4660G with ALC269VC

testing commit 781c90c034d994c6a4e2badf189128a95ed864c2 with gcc (GCC) 8.4.1 20210217
kernel signature: 23db6f7f91904b181c417e89ce9eb91d1ca93aa68a9c7f1cc8b1da6b488ec725
all runs: OK
# git bisect good 781c90c034d994c6a4e2badf189128a95ed864c2
Bisecting: 3760 revisions left to test after this (roughly 12 steps)
[c3829285b2e6a0d5461078d7f6cbb2c2b4bf8c4e] netfilter: nft_set_pipapo: Disable preemption before getting per-CPU pointer

testing commit c3829285b2e6a0d5461078d7f6cbb2c2b4bf8c4e with gcc (GCC) 8.4.1 20210217
kernel signature: 75480a9df3b5c2fc7e86d0b3cb4549d564d2bbe28c83b0911ff91638b472205a
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip c3829285b2e6a0d5461078d7f6cbb2c2b4bf8c4e
Bisecting: 3760 revisions left to test after this (roughly 12 steps)
[fba5618451d2b3af5e55f8af5ce9c5d3677ad9c4] dt-bindings: Fix incorrect 'reg' property sizes

testing commit fba5618451d2b3af5e55f8af5ce9c5d3677ad9c4 with gcc (GCC) 8.4.1 20210217
kernel signature: bc45b41c252b37b86dc0220c80ecdb15bd9c2d3ab18343705ed9d8a656f4e656
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip fba5618451d2b3af5e55f8af5ce9c5d3677ad9c4
Bisecting: 3760 revisions left to test after this (roughly 12 steps)
[6c3c184fc420a2d8233d0e0f977e7df8051c5edb] tools headers API: Update faccessat2 affected files

testing commit 6c3c184fc420a2d8233d0e0f977e7df8051c5edb with gcc (GCC) 8.4.1 20210217
kernel signature: 35534f1d068267a14c6745ed5c5711c2bea0d98948697d6be5b3bdbb420c7c9b
all runs: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_blocks
# git bisect skip 6c3c184fc420a2d8233d0e0f977e7df8051c5edb
Bisecting: 3760 revisions left to test after this (roughly 12 steps)
[803917f960c2a34d16fb0aa6debb80fed59a58b7] habanalabs: set PM profile to auto only for goya

testing commit 803917f960c2a34d16fb0aa6debb80fed59a58b7 with gcc (GCC) 8.4.1 20210217
kernel signature: 7f710c3abc8940a0ff8674c975355e84fbeaed2dc0c4dae53cfcfd7bbdf52a84
all runs: OK
# git bisect good 803917f960c2a34d16fb0aa6debb80fed59a58b7
Bisecting: 3689 revisions left to test after this (roughly 12 steps)
[849af490b6a674ba0636fbf95ac048b87ad2eb94] dt-bindings: clocks: imx8mp: Add ids for audiomix clocks

testing commit 849af490b6a674ba0636fbf95ac048b87ad2eb94 with gcc (GCC) 8.4.1 20210217
kernel signature: 73d9ea51d3c500b980574d2a591531fb584318b975d33f681c0c59df24c84b12
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
# git bisect skip 849af490b6a674ba0636fbf95ac048b87ad2eb94
Bisecting: 3689 revisions left to test after this (roughly 12 steps)
[6975031a31f0c72a20e464c1df4c607d6bb44fb8] gcc-plugins: fix gcc-plugins directory path in documentation

testing commit 6975031a31f0c72a20e464c1df4c607d6bb44fb8 with gcc (GCC) 8.4.1 20210217
kernel signature: e42fd89afb9e520458cb75738ffe34be93c09580b3ea72b47e7de0640dfbadc6
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 6975031a31f0c72a20e464c1df4c607d6bb44fb8
Bisecting: 3689 revisions left to test after this (roughly 12 steps)
[2613eab11996c8d1439c2a44fbca52807be7faa6] dm mpath: add Historical Service Time Path Selector

revisions tested: 38, total time: 8h7m14.80000861s (build: 4h5m55.675981438s, test: 3h54m55.168688053s)
error: bisection is taking too long (>8h0m0s), aborting