bisecting cause commit starting from 2172e358cd1713c5b7c31361ac465edfe55e455c
building syzkaller on 5ef9c29141f85f210b326ce68718498ae0c1fd35
testing commit 2172e358cd1713c5b7c31361ac465edfe55e455c with gcc (GCC) 8.1.0
kernel signature: b1c809266bf2ee6b869fa57299e30d934d727ae32eb1ae1e014018f6600c330b
all runs: crashed: INFO: task can't die in request_wait_answer
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0
kernel signature: 775ea89792e8a8a4e8ce3b1da080a7bbf18404742d13fdb23eb5a9a1673a0df8
all runs: crashed: INFO: task hung in fuse_simple_request
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: 5ba17847f3f759bfff13d580a21d3061b077637008035b4f31f4e6cf9a4e4b12
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: OK
run #6: crashed: INFO: task hung in fuse_simple_request
run #7: OK
run #8: OK
run #9: OK
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0
kernel signature: 873d12ec71814ca4ec2cb84c7402005afcbe372c8d352cc15b0442286704d781
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: OK
run #5: OK
run #6: crashed: INFO: task hung in fuse_simple_request
run #7: OK
run #8: OK
run #9: OK
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0
kernel signature: eea2ddb2a578dd18fbb4ef4f444b3294ec14f1ae524216eacbd20a755df2d2ce
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: crashed: INFO: task hung in fuse_simple_request
run #6: OK
run #7: OK
run #8: OK
run #9: OK
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0
kernel signature: 7e3f0dca9442dcec7aaaadd221775ecf0435f33ef4eaa1dc21bc5f4051b85db8
run #0: crashed: INFO: task hung in fuse_simple_request
run #1: crashed: INFO: task hung in fuse_simple_request
run #2: crashed: INFO: task hung in fuse_simple_request
run #3: crashed: INFO: task hung in fuse_simple_request
run #4: crashed: INFO: task hung in fuse_simple_request
run #5: crashed: INFO: task hung in fuse_simple_request
run #6: OK
run #7: OK
run #8: crashed: INFO: task hung in fuse_simple_request
run #9: OK
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0
kernel signature: 26430e3c78d2b48dfda0b06a1a3d6774baeb1cdf8e0aab645746e643c9707ede
all runs: crashed: INFO: task hung in __fuse_request_send
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0
kernel signature: 0edcab6ac2858f48321f682089651c78564320db86c792e12a4a92d5e10142c3
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: OK
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0
kernel signature: df1b42d13cb98c7bc6c4061e3d1748fb1a131457975902036dee283c87b2a3bb
all runs: crashed: INFO: task hung in __fuse_request_send
testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0
kernel signature: 659048a0e8872ed92ca7bcbbb19ffb6509f90e8b3022f9c92594963f9cfed5e8
all runs: crashed: INFO: task hung in __fuse_request_send
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0
kernel signature: 3406d1c43aaefe0e41c3cc84b20c1ad3d6aee6e60017b52f15366ed16b09f18a
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: OK
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0
kernel signature: f2eefa6dafcabfdd9a0a0fd3e164d620163bff21390f8b21215ae33f158f09dd
run #0: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: crashed: INFO: task hung in __fuse_request_send
testing release v4.18
testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0
kernel signature: 0dd96535ed68c63e270804f1e804867bd66f4ff9d25cbc5b13ffa9d41f05852b
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: OK
testing release v4.17
testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0
kernel signature: fabe6ff298648cab97640d9194d8f4217160914907eb2845d50dc8fdcb70b6b7
run #0: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: crashed: INFO: task hung in __fuse_request_send
testing release v4.16
testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0
kernel signature: 291a2ae43e6e9c62455268615bc1daa6010553402f942390777568a0713dafc7
run #0: crashed: KASAN: use-after-free Read in dcache_readdir
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: crashed: INFO: task hung in __fuse_request_send
testing release v4.15
testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0
kernel signature: 9ccf13407721ee0e6b04718af307862b7e851459d8474df198fed8ad668b1640
run #0: crashed: WARNING in check_flush_dependency
run #1: crashed: WARNING in check_flush_dependency
run #2: crashed: WARNING in check_flush_dependency
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: crashed: INFO: task hung in __fuse_request_send
testing release v4.14
testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0
kernel signature: b2741420f3e35f9ba03020a0ab5067a8ddedf18ad6d026aac197925611488531
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: OK
run #9: OK
testing release v4.13
testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0
kernel signature: e106df7601482f8cfdb4a13b2aca4eb471e422960f11576041da2f6f9fcfa543
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: crashed: INFO: task hung in __fuse_request_send
run #5: crashed: INFO: task hung in __fuse_request_send
run #6: crashed: INFO: task hung in __fuse_request_send
run #7: crashed: INFO: task hung in __fuse_request_send
run #8: crashed: INFO: task hung in __fuse_request_send
run #9: OK
testing release v4.12
testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0
kernel signature: 3e38d881d6c16d984ffb7d0d2430a202d05c76bb7d1ca9d0102fdf5935b94d04
all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor
testing release v4.11
testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0
kernel signature: b9c79a17250fbbb07839d9dc860935106d46623b84dc483066edab94fae2c5d3
all runs: crashed: BUG: sleeping function called from invalid context in tap_get_minor
testing release v4.10
testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0
kernel signature: 0b0238aed80e62e4775d992095b5b780b94692b27cfd62a1e427dd3d77a02f73
run #0: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #1: crashed: INFO: suspicious RCU usage in pids_can_fork
run #2: crashed: INFO: suspicious RCU usage in pids_can_fork
run #3: crashed: INFO: suspicious RCU usage in pids_can_fork
run #4: crashed: INFO: suspicious RCU usage in pids_can_fork
run #5: crashed: INFO: suspicious RCU usage in pids_can_fork
run #6: crashed: INFO: suspicious RCU usage in pids_can_fork
run #7: crashed: INFO: suspicious RCU usage in pids_can_fork
run #8: crashed: INFO: suspicious RCU usage in pids_can_fork
run #9: crashed: INFO: suspicious RCU usage in pids_can_fork
testing release v4.9
testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0
kernel signature: da471443b0634f37aa9b16f1e2468fa7382a4f00c7b8ba7f8409b8c8d0e4ea6a
all runs: crashed: INFO: suspicious RCU usage in pids_can_fork
testing release v4.8
testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0
kernel signature: 74c08e432b689ffd19d8b27057ece9e3a53debaa3b2b8881fcc37c11c8d47045
all runs: crashed: INFO: suspicious RCU usage in pids_can_fork
testing release v4.7
testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0
kernel signature: 7e0a328e7ea23e2c2c9d19a52a57c70e980b18ee90cefe78bf277a8e6087a63d
all runs: OK
# git bisect start c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 523d939ef98fd712632d93a5a2b588e477a7565e
Bisecting: 7344 revisions left to test after this (roughly 13 steps)
[e61c10e468a42512f5fad74c00b62af5cc19f65f] sh: add device tree source for J2 FPGA on Mimas v2 board
testing commit e61c10e468a42512f5fad74c00b62af5cc19f65f with gcc (GCC) 5.5.0
kernel signature: 02e5bff86dd1d54d899f6652e3bc0729e15033586e1c855e4ee4af6192921878
run #0: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #1: crashed: INFO: suspicious RCU usage in pids_can_fork
run #2: crashed: INFO: suspicious RCU usage in pids_can_fork
run #3: crashed: INFO: suspicious RCU usage in pids_can_fork
run #4: crashed: INFO: suspicious RCU usage in pids_can_fork
run #5: crashed: INFO: suspicious RCU usage in pids_can_fork
run #6: crashed: INFO: suspicious RCU usage in pids_can_fork
run #7: crashed: INFO: suspicious RCU usage in pids_can_fork
run #8: crashed: INFO: suspicious RCU usage in pids_can_fork
run #9: crashed: INFO: suspicious RCU usage in pids_can_fork
# git bisect bad e61c10e468a42512f5fad74c00b62af5cc19f65f
Bisecting: 3754 revisions left to test after this (roughly 12 steps)
[08fd8c17686c6b09fa410a26d516548dd80ff147] Merge tag 'for-linus-4.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
testing commit 08fd8c17686c6b09fa410a26d516548dd80ff147 with gcc (GCC) 5.5.0
kernel signature: f8129f5fe501e14b8b1f1c9f25721b209e3d37b64527fd0e3398ceacc0739410
all runs: OK
# git bisect good 08fd8c17686c6b09fa410a26d516548dd80ff147
Bisecting: 1877 revisions left to test after this (roughly 11 steps)
[7ae0ae4a022b72f33d23ab6e858163d4b37400a5] Merge tag 'spi-v4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
testing commit 7ae0ae4a022b72f33d23ab6e858163d4b37400a5 with gcc (GCC) 5.5.0
kernel signature: f96ccafbc14f52e32257fd454e7e47730a8d523f10c6c995e47778be80d919b3
all runs: crashed: INFO: suspicious RCU usage in pids_can_fork
# git bisect bad 7ae0ae4a022b72f33d23ab6e858163d4b37400a5
Bisecting: 938 revisions left to test after this (roughly 10 steps)
[6fd980ac39efee9c26b1eb256c3271fcb139bd99] net: samples: pktgen mode samples/tests for qdisc layer
testing commit 6fd980ac39efee9c26b1eb256c3271fcb139bd99 with gcc (GCC) 5.5.0
kernel signature: 640617b257354535e787f628c54f68e330462a2a1afc82e5b6997e4c90936756
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: INFO: task hung in __fuse_request_send
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 6fd980ac39efee9c26b1eb256c3271fcb139bd99
Bisecting: 468 revisions left to test after this (roughly 9 steps)
[697666eac664dbea7c2c1fa7518fd5dfe098776f] net: ethernet: bcmsysport: use phy_ethtool_{get|set}_link_ksettings
testing commit 697666eac664dbea7c2c1fa7518fd5dfe098776f with gcc (GCC) 5.5.0
kernel signature: b7f1f8bc04479cf29599f4aa10b04163ef322b30852f9c975ee61c283e77565c
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 697666eac664dbea7c2c1fa7518fd5dfe098776f
Bisecting: 234 revisions left to test after this (roughly 8 steps)
[6988bd920c6ea53497ed15db947408b7488c9e36] bnxt_en: Add new function bnxt_reset().
testing commit 6988bd920c6ea53497ed15db947408b7488c9e36 with gcc (GCC) 5.5.0
kernel signature: c35ac09a9f71da8d0bec40e7e3add1dfe617962131a9fe46bed613e59d0d09a7
run #0: crashed: INFO: task hung in __fuse_request_send
run #1: crashed: KASAN: use-after-free Read in fuse_dev_do_read
run #2: crashed: INFO: task hung in __fuse_request_send
run #3: crashed: INFO: task hung in __fuse_request_send
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 6988bd920c6ea53497ed15db947408b7488c9e36
Bisecting: 116 revisions left to test after this (roughly 7 steps)
[6ad8c632ee48ae099aa13704ef18a641220fe211] qed: Add support for query/config dcbx.
testing commit 6ad8c632ee48ae099aa13704ef18a641220fe211 with gcc (GCC) 5.5.0
kernel signature: 6a4eef3018ae0c4d9be45c2fd1cf038030bf76ad599c01cdab02dc194eaf747a
all runs: OK
# git bisect good 6ad8c632ee48ae099aa13704ef18a641220fe211
Bisecting: 58 revisions left to test after this (roughly 6 steps)
[1578b0a5e92825334760741e5c166b8873886f1b] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
testing commit 1578b0a5e92825334760741e5c166b8873886f1b with gcc (GCC) 5.5.0
kernel signature: e52e72729835a09641394a735edca3a29f1a4d62b062753e5a7f462d1879a2b2
run #0: crashed: KASAN: use-after-free Read in cancel_delayed_work_sync
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: OK
run #9: OK
# git bisect bad 1578b0a5e92825334760741e5c166b8873886f1b
Bisecting: 28 revisions left to test after this (roughly 5 steps)
[d3fff6c443fe8f8a5ef2bdcea45e2ff39db948c7] net: add netdev_lockdep_set_classes() helper
revisions tested: 32, total time: 8h8m7.058273922s (build: 2h54m38.411829806s, test: 5h8m28.958186253s)
error: bisection is taking too long (>8h0m0s), aborting