bisecting cause commit starting from b10b8ad862118bf42c28a98b0f067619aadcfb23
building syzkaller on 9e1fa68ee1625a7f0ef03906ee1abb40cb987fbf
testing commit b10b8ad862118bf42c28a98b0f067619aadcfb23 with gcc (GCC) 8.1.0
kernel signature: d22c85042f899bccce4f46821efcd4ac623d1fe056a73899778fabb543ddc180
all runs: crashed: WARNING in __kernel_read
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0
kernel signature: 9785a0138edc36d7ce3bbb25e3799a2ecbf2a52fe4e2cd689e169a119ff88ffd
all runs: crashed: WARNING in __kernel_read
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: b30b6865fe84644c62715025955f08644b9c3cb1f3e4954ba6d9d4f0e4d040c8
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) 8.1.0
kernel signature: 88d3718f07e7a005d9c8a61c45eb0e61314d29c5fe3458e7a8f94c6c9735ad14
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) 8.1.0
kernel signature: e3caee5208d44807bc109dd16e050545caed103b0a869e924e223f4323f79a6e
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) 8.1.0
kernel signature: 7d88e89f6cff1f9e0d1b1167c7a1702dc1b8d3ebe16f9b95cdbab817b23e3d89
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) 8.1.0
kernel signature: ed522ea5d85f6c8fdff10a99669f820a47d0c881b4a87f4bd6becb4527dbd6b2
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) 8.1.0
kernel signature: ecdf1653f0b76174179210e9141f06797904bb03d4e7bd8823a52898a2389d80
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) 8.1.0
kernel signature: 55114c13ffe1dea9c1f56ad8124b231f4f85f9a60c737ea321a81e8eddd98c87
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) 8.1.0
kernel signature: 8c62bc392085101518710da29e6594673ee16632eede814966f1f33ce1208456
all runs: 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) 8.1.0
kernel signature: ffc3f4e72df29babf88ac262ef2702f12a5f2526300eec978e49a58b9b01da06
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) 8.1.0
kernel signature: 19b385e8f3e042de86e75d0b7821f9a178757f356c99d9f1f1a8560f335ce776
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) 8.1.0
kernel signature: c33ccda28a34c561304dbfb374100cd9c38179abce12cb8c1409987248c29164
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) 8.1.0
kernel signature: b256783e1b4743693cf85263c97392c67f623422785624668fa7f912493d24d0
all runs: crashed: WARNING in __kernel_read
# 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) 8.1.0
kernel signature: c6284c5e11e3d77988d6b3796fd4ad1c3ea4eeb6c902a2d607643183208cc046
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) 8.1.0
kernel signature: 57ec2897a28d92412f84488ca7080e0e98dacaebd52af3a97697cb159529551a
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) 8.1.0
kernel signature: fb29ba6b484ba3386948a91a212693a0d58840d1a20742a09f143f6a39f67862
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) 8.1.0
kernel signature: b062c202a51c3b044b8ed710e8aaa8a9570d58efa5fd2ae30f5f8bd38a26ae6f
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) 8.1.0
kernel signature: 99aea21d303d3b0cbc85e92029d1597a8e4c6263f461dc12e12f9d1bbf816b5b
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) 8.1.0
kernel signature: ae1b0fe43d909004ead709f08250174735c14c4d241ad62e29926e7e11df4478
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) 8.1.0
kernel signature: a45a803001b6bbf634873e32a71165099170822cf3cbe7ad1aeaec33cf285a69
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) 8.1.0
kernel signature: 2cd55b4215e73da53783c4d96116635ee56047ff53820dbcf2e4f29560ad217f
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) 8.1.0
kernel signature: 782e854d1c74882bc2afd2c335b9762250ab9ae77027dc416166cdcf798ee0c8
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) 8.1.0
kernel signature: 1e3697c46c379c9d5d651a510020055a1dbb55da4baa7f09113273d3422cc4d4
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) 8.1.0
kernel signature: 947debf6863cc8da5590e224a2227fe15d347bb13148bcfcde961a34561ae823
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) 8.1.0
kernel signature: 46b879fad3852275cb7b21ec9f70e8506e285d4247b89f751e349b2c37a94489
run #0: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in corrupted
run #1: basic kernel testing failed: BUG: using smp_processor_id() in preemptible code in ext4_mb_new_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 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) 8.1.0
kernel signature: 33bbac7fa5eaf19bb5f3674c42ce5f6d75ec3f885e59cb7f35ff31c055159802
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) 8.1.0
kernel signature: 382fe1962da450f1f7ab2461901767897b5c3e0adde529d4624cbb4c577dc627
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) 8.1.0
kernel signature: 27719a56e6b25397e4ce744628ebaba9d9c1a109ebad163c4d9ca876ad925800
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) 8.1.0
kernel signature: 21977bb2e98c769b750a093d9338248cbd455c3ae6a28ff6ff69788963c843b3
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) 8.1.0
kernel signature: 4d98f9d43b75fadd0c214944e9cd93daaf125c9798d99639a5c8ae6216b2e41b
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) 8.1.0
kernel signature: 8cec06484a906da5f1b0fb4ff4d241d8e3c074f79dd794b1765b9db3d4f5ac58
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) 8.1.0
kernel signature: bffb57fde6e613f9e58e74234f622faa4afedd7db4311d05b139cac4a85912e0
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) 8.1.0
kernel signature: f0e4c52f42fe7a342196ff56320c4daef0044a1a627ae4237f6b65563a5d174f
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) 8.1.0
kernel signature: 9dca4f5a6070d405367cef91963ab3b15f3944096b28c20292b8bb20d5ab9c45
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: 35, total time: 8h3m43.129066937s (build: 3h52m56.63155399s, test: 4h4m4.170596193s)
error: bisection is taking too long (>8h0m0s), aborting