bisecting cause commit starting from 85a90500f9a1717c4e142ce92e6c1cb1a339ec78
building syzkaller on 6972b10616d785401dea17cec890cca8916424a7
testing commit 85a90500f9a1717c4e142ce92e6c1cb1a339ec78
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: a6768138a61deddaacba758d21aa992dbc8875a8e00b9b9ffee7e8d0033a5671
all runs: crashed: WARNING in perf_pending_event
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 160dd584d3041427002e5e881f98280ae9aebc819a2fa29b4bade4d15820e761
all runs: OK
# git bisect start 85a90500f9a1717c4e142ce92e6c1cb1a339ec78 62fb9874f5da54fdb243003b386128037319b219
Bisecting: 7546 revisions left to test after this (roughly 13 steps)
[a32b344e6f4375c5bdc3e89d0997b7eae187a3b1] Merge tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

testing commit a32b344e6f4375c5bdc3e89d0997b7eae187a3b1
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 2cce89c410acc12f67a6493de36def27961c4d71b04b888ebf808e1247c9e1a7
all runs: OK
# git bisect good a32b344e6f4375c5bdc3e89d0997b7eae187a3b1
Bisecting: 3796 revisions left to test after this (roughly 12 steps)
[a16d8644bad461bb073b92e812080ea6715ddf2b] Merge tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

testing commit a16d8644bad461bb073b92e812080ea6715ddf2b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: ed97f019ccba1da2e24937230dd38e3a5e14fb88c59ec9c68414f49a081a9408
run #0: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #1: boot failed: possible deadlock in get_page_from_freelist
run #2: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #3: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #4: boot failed: possible deadlock in fs_reclaim_acquire
run #5: boot failed: possible deadlock in get_page_from_freelist
run #6: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #7: boot failed: possible deadlock in fs_reclaim_acquire
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip a16d8644bad461bb073b92e812080ea6715ddf2b
Bisecting: 3796 revisions left to test after this (roughly 12 steps)
[a596ef1956034340212ee2e33ca55a595a794321] staging: rtl8723bs: remove debug macros related to core/rtw_recv.c tracing

testing commit a596ef1956034340212ee2e33ca55a595a794321
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: a011cacf24b0afce5686db61b58161a94ea1dacca9f53c2c77445940a3227d9e
all runs: OK
# git bisect good a596ef1956034340212ee2e33ca55a595a794321
Bisecting: 3796 revisions left to test after this (roughly 12 steps)
[7e71b85473f863a29eb1c69265ef025389b4091d] arm64: dts: ls1028a: fix node name for the sysclk

testing commit 7e71b85473f863a29eb1c69265ef025389b4091d
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: c0333a05f2653cf49d8b6286aec2f9f5cefe111c34f7c98e478da8c3da8c7163
run #0: crashed: WARNING in perf_pending_event
run #1: crashed: BUG: sleeping function called from invalid context in stack_depot_save
run #2: crashed: WARNING in perf_pending_event
run #3: crashed: WARNING in perf_pending_event
run #4: crashed: WARNING in perf_pending_event
run #5: crashed: WARNING in perf_pending_event
run #6: crashed: WARNING in perf_pending_event
run #7: crashed: WARNING in perf_pending_event
run #8: crashed: WARNING in perf_pending_event
run #9: crashed: WARNING in perf_pending_event
# git bisect bad 7e71b85473f863a29eb1c69265ef025389b4091d
Bisecting: 3117 revisions left to test after this (roughly 12 steps)
[f5c13f1fdef9fed65b95c3c5f343d22c425ac1d7] Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

testing commit f5c13f1fdef9fed65b95c3c5f343d22c425ac1d7
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: ffc01a5bbef34fd43f69f5ab1d8b0ffe320990f7d8fa033c14fd59885bd21c0a
run #0: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #1: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #2: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #3: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #4: boot failed: possible deadlock in fs_reclaim_acquire
run #5: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #6: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #7: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #8: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip f5c13f1fdef9fed65b95c3c5f343d22c425ac1d7
Bisecting: 3117 revisions left to test after this (roughly 12 steps)
[2975c588dfa29fe3ba17434d5f4a3afa5e5d8f3b] ALSA: usb-audio: scarlett2: Remove incorrect S/PDIF comment

testing commit 2975c588dfa29fe3ba17434d5f4a3afa5e5d8f3b
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: c34d8826888506da9470e5b532b90d399e6aa73bc98236378a79bd026c85ac89
all runs: OK
# git bisect good 2975c588dfa29fe3ba17434d5f4a3afa5e5d8f3b
Bisecting: 3117 revisions left to test after this (roughly 12 steps)
[8ef029135c7b4e1ed4c424efe5cbd8d0088fe8ba] mtd: nftl: remove unnecessary oom message

testing commit 8ef029135c7b4e1ed4c424efe5cbd8d0088fe8ba
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 60fac7ff981afa33d705001962d22fbd7cf53c53a6f3b37b5124b6d9c8b265ba
all runs: OK
# git bisect good 8ef029135c7b4e1ed4c424efe5cbd8d0088fe8ba
Bisecting: 3117 revisions left to test after this (roughly 12 steps)
[4ab293c2809efa1499c3290ff007d98a9ee2fab2] scsi: ips: Avoid over-read of sense buffer

testing commit 4ab293c2809efa1499c3290ff007d98a9ee2fab2
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 9e5dfa2afa861e5ceb1ef6e423d23806ce517946f4c53817691a7fb040685814
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip 4ab293c2809efa1499c3290ff007d98a9ee2fab2
Bisecting: 3117 revisions left to test after this (roughly 12 steps)
[4d9a2bb1a6babc9280a8b4e7a95ada9bf6e51e9a] f2fs: introduce f2fs_casefolded_name slab cache

testing commit 4d9a2bb1a6babc9280a8b4e7a95ada9bf6e51e9a
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: b0bddb1fd0349b56c1390793ead332d70246c3d2a186e66158d1dd55222df95d
all runs: OK
# git bisect good 4d9a2bb1a6babc9280a8b4e7a95ada9bf6e51e9a
Bisecting: 3092 revisions left to test after this (roughly 12 steps)
[02c5e7c2db2bdfe227dd3e7f6febd732ccec5440] thunderbolt: Move nfc_credits field to struct tb_path_hop

testing commit 02c5e7c2db2bdfe227dd3e7f6febd732ccec5440
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 98b1a2d25b629a46bf697e0aab96f949ad515678e93ac3a4bf4396cb8a302d3e
all runs: OK
# git bisect good 02c5e7c2db2bdfe227dd3e7f6febd732ccec5440
Bisecting: 3084 revisions left to test after this (roughly 12 steps)
[1f106ff0ea2782a6bc49bb927e4789681a2ec507] iommu/vt-d: Use bitfields for DMAR capabilities

testing commit 1f106ff0ea2782a6bc49bb927e4789681a2ec507
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 7caee1519a1cebc14ec6b5e4228cfb44837782d5dff3f507541c7068ba1e98b4
all runs: OK
# git bisect good 1f106ff0ea2782a6bc49bb927e4789681a2ec507
Bisecting: 3084 revisions left to test after this (roughly 12 steps)
[4b21a503adf597773e4b37db05db0e9b16a81d53] iommu/amd: Fix extended features logging

testing commit 4b21a503adf597773e4b37db05db0e9b16a81d53
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 7c84011c49b477a50efa165ba749f278ddef9aac731b2877b98e40fb97e097d7
all runs: OK
# git bisect good 4b21a503adf597773e4b37db05db0e9b16a81d53
Bisecting: 3084 revisions left to test after this (roughly 12 steps)
[fdabe57d126954fe4132ef271366dfd75b411224] scsi: aha152x: Do not set message byte when calling scsi_done()

testing commit fdabe57d126954fe4132ef271366dfd75b411224
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: b189504cc43ec8200f09dd54c54be587932f61e7a47ea921d5d437ed21021492
all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip fdabe57d126954fe4132ef271366dfd75b411224
Bisecting: 3084 revisions left to test after this (roughly 12 steps)
[1e5654de0f51890f88abd409ebf4867782431e81] exfat: handle wrong stream entry size in exfat_readdir()

testing commit 1e5654de0f51890f88abd409ebf4867782431e81
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: b2872830b4306fba3d3cb02de5652695b8673969981200ded0676fae8bc9c003
all runs: OK
# git bisect good 1e5654de0f51890f88abd409ebf4867782431e81
Bisecting: 3082 revisions left to test after this (roughly 12 steps)
[d92cc4d5164398cc6d191084b46e622976c0ba89] kbuild: require all architectures to have arch/$(SRCARCH)/Kbuild

testing commit d92cc4d5164398cc6d191084b46e622976c0ba89
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 5d0ba852a149a8693cff5c6171f8f55496527b5f3d75996547bd6fb7a92d5273
all runs: OK
# git bisect good d92cc4d5164398cc6d191084b46e622976c0ba89
Bisecting: 3078 revisions left to test after this (roughly 12 steps)
[0e8f0d67401589a141950856902c7d0ec8d9c985] [xarray] iov_iter_fault_in_readable() should do nothing in xarray case

testing commit 0e8f0d67401589a141950856902c7d0ec8d9c985
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: e4e2bfd0688f9ebaa37a7c58a5a7b74e62fa4160ab68a69f6cb40d853a8ac5d0
all runs: OK
# git bisect good 0e8f0d67401589a141950856902c7d0ec8d9c985
Bisecting: 3078 revisions left to test after this (roughly 12 steps)
[a3e0b51884ee3a5d890bd5124d9a270f61589e57] iio: accel: add support for FXLS8962AF/FXLS8964AF accelerometers

testing commit a3e0b51884ee3a5d890bd5124d9a270f61589e57
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 917dd2726dbc5e16cb48f70ba0121c2ae5d87db84db3d8572469fcca8ce2dfc8
all runs: OK
# git bisect good a3e0b51884ee3a5d890bd5124d9a270f61589e57
Bisecting: 2853 revisions left to test after this (roughly 12 steps)
[06ac9b6c736ac9da600b1782d7ac6d6e746286c4] drm/amdgpu: add new dimgrey cavefish DID

testing commit 06ac9b6c736ac9da600b1782d7ac6d6e746286c4
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 6f094522a6b6799da7489da2e58f3af8c4593987e89504f693bf92131b7abb3c
all runs: OK
# git bisect good 06ac9b6c736ac9da600b1782d7ac6d6e746286c4
Bisecting: 2823 revisions left to test after this (roughly 12 steps)
[bb560edc19a535b690b81fd30d17462d129483a3] iio: adc: ad7791: convert to device-managed functions

testing commit bb560edc19a535b690b81fd30d17462d129483a3
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: fa70966dd93a0a72ecafbdaba294a7a1db9d7fdb480c58adbadfae2558a4c848
all runs: OK
# git bisect good bb560edc19a535b690b81fd30d17462d129483a3
Bisecting: 2627 revisions left to test after this (roughly 11 steps)
[eed0218e8cae9fcd186c30e9fcf5fe46a87e056e] Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

testing commit eed0218e8cae9fcd186c30e9fcf5fe46a87e056e
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: b7fd5439d3ee56d4215811b60902bbf407a13d9ae78a19900c790ee84f96895d
run #0: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #1: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #2: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #3: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #4: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #5: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #6: boot failed: possible deadlock in get_page_from_freelist
run #7: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #8: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip eed0218e8cae9fcd186c30e9fcf5fe46a87e056e
Bisecting: 2627 revisions left to test after this (roughly 11 steps)
[6aeb25425d07a8cf2deb4cc1db4d7a667e640839] mmap: make mlock_future_check() global

testing commit 6aeb25425d07a8cf2deb4cc1db4d7a667e640839
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: b6afa5e95c48ea87b14ae5e3d508b66b75f8f92aa1cfc4adb8b85545e12812d2
run #0: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #1: boot failed: possible deadlock in get_page_from_freelist
run #2: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #3: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #4: boot failed: possible deadlock in get_page_from_freelist
run #5: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #6: boot failed: possible deadlock in get_page_from_freelist
run #7: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip 6aeb25425d07a8cf2deb4cc1db4d7a667e640839
Bisecting: 2627 revisions left to test after this (roughly 11 steps)
[1216037a5589329175c399f946cc5230dec3fa6f] Merge tag 'memory-controller-drv-5.14' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

testing commit 1216037a5589329175c399f946cc5230dec3fa6f
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: fa3109a7c346c9b2b9126d7008af694744445ba87c501cad39b1e8053c61f542
all runs: OK
# git bisect good 1216037a5589329175c399f946cc5230dec3fa6f
Bisecting: 2580 revisions left to test after this (roughly 11 steps)
[5ff90af9da8f243133e6f21368e5df15e29037bf] usb: dwc3: debugfs: Add and remove endpoint dirs dynamically

testing commit 5ff90af9da8f243133e6f21368e5df15e29037bf
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: c03ed723b8281e8008e4f30fa6d42563444d92d12a011ecc93249c4e5f0b99e8
all runs: OK
# git bisect good 5ff90af9da8f243133e6f21368e5df15e29037bf
Bisecting: 2483 revisions left to test after this (roughly 11 steps)
[d2918cb784977bb550b936cfcbfe16bcba014628] Merge branch 'pci/host/rockchip'

testing commit d2918cb784977bb550b936cfcbfe16bcba014628
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: dcb8df584375eb93b28fccc4919c082d68be2460cf80d0a96b36570f83bdad44
all runs: OK
# git bisect good d2918cb784977bb550b936cfcbfe16bcba014628
Bisecting: 2438 revisions left to test after this (roughly 11 steps)
[56addfb0893c02d2b046d682a5cef1d8a76b574a] staging: rtl8723bs: remove include/autoconf.h header file from tree

testing commit 56addfb0893c02d2b046d682a5cef1d8a76b574a
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 7ccad1087eb76c38e5b7d63cbee7ed79471f0b6c79926a858da0811b53f188a2
all runs: OK
# git bisect good 56addfb0893c02d2b046d682a5cef1d8a76b574a
Bisecting: 2657 revisions left to test after this (roughly 11 steps)
[3f8b8e7dbd79086ad48fcff33de9399f3da66a69] Merge tag 'backlight-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight

testing commit 3f8b8e7dbd79086ad48fcff33de9399f3da66a69
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.1
kernel signature: 7f5bc5936574fab69d9a8e74c38c2972b1d8ce5715c848a6b268bc9480ac6090
run #0: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #1: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #2: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #3: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #4: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #5: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #6: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #7: boot failed: BUG: sleeping function called from invalid context in stack_depot_save
run #8: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
run #9: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(0,0)
# git bisect skip 3f8b8e7dbd79086ad48fcff33de9399f3da66a69
Bisecting: 2657 revisions left to test after this (roughly 11 steps)
[99f98f849cf13e5fac532979ccdb77dff07665db] powerpc/interrupt: Interchange prep_irq_for_{kernel_enabled/user}_exit()

revisions tested: 28, total time: 8h7m3.396525132s (build: 3h3m18.398949466s, test: 5h1m2.830486562s)
error: bisection is taking too long (>8h0m0s), aborting