bisecting cause commit starting from 26027945c94a1dfe67ea39f676f5a31276951159
building syzkaller on 1f7cc1ca26f786658b146bf760d9698390e9bbfb
testing commit 26027945c94a1dfe67ea39f676f5a31276951159 with gcc (GCC) 8.1.0
kernel signature: 41aa1989572a18bb51a8c7a0c07eb9f42314fe340ce3b4aca65048f418d11ff4
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_read
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_read
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: 485a02fb58389947b1ebdc281741a7b27a9b72de3618d09840441643f6d03f95
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: OK
run #8: OK
run #9: OK
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0
kernel signature: 6f52d7ecad7ebab2d3584acf9889e407cfe81e184549f911f09404fceae06107
run #0: crashed: INFO: task hung in pipe_read
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
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0
kernel signature: 506768724443de7340053e20240885d3fafdc2bb7ccb620dd68b7680c45945a5
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: OK
run #5: OK
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: c07c7fe01dc7adf210675d1d476cb1ea831c22ca9d26aaf0e93fd90d7fb87649
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_read
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_write
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0
kernel signature: 6d5ff4378b8f24e809e726af77136dea4ee15de0d043518ca25527674535a4f9
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_read
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_write
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0
kernel signature: 43643e0b150547315839bb10ce0a28906b4d9bbc2e290e7ba884c3cfe3a45dea
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_read
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: OK
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0
kernel signature: de0549553c7981969aecc3b377d5de8622c37bc339e7ba9f724ba3745d39d0aa
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_read
run #9: OK
testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0
kernel signature: da1a80e7615a7b6cbd04c64ec7eb3383a3b206042d02e4275154266ef1dc5c56
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_read
run #8: crashed: INFO: task hung in pipe_read
run #9: crashed: INFO: task hung in pipe_write
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0
kernel signature: de173f936e8bc7a5e4ac57f1f01cfe79add16a6fb3c4e6b12dd072a0f501d17e
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_read
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_read
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0
kernel signature: 4575a080c9ce50bbfa50bc4d10e7e4c3919bdd8400e7ef6af028ab6879aafbba
all runs: crashed: INFO: task hung in pipe_write
testing release v4.18
testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0
kernel signature: f33cd8a54e71c4348379c446cc4244032bd08b3dd028ce64fa216f1c9b0e1275
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_read
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_read
run #8: crashed: INFO: task hung in pipe_read
run #9: crashed: INFO: task hung in pipe_write
testing release v4.17
testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0
kernel signature: 9eae85cc921edc58dca184d759240326bc197b88c3bd43a81e915636405332ac
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_read
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: OK
run #9: OK
testing release v4.16
testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0
kernel signature: b54049ce58f7e326a51a65d357bdadc308236cab7b035ea320e5124865196a6b
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_read
run #5: crashed: INFO: task hung in pipe_read
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: OK
testing release v4.15
testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0
kernel signature: ec52b7738d16baa8254fb8d28ff5108c0bb52e95512e0ddb584c012b284449f3
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_read
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_read
run #4: crashed: INFO: task hung in pipe_read
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_write
testing release v4.14
testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0
kernel signature: 82a2eecba999a7a47f20fcd32b50362fb7b61d9b5542ee9c506752ccfb8f28d2
run #0: crashed: INFO: task hung in pipe_read
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_read
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_write
run #6: crashed: INFO: task hung in pipe_write
run #7: crashed: INFO: task hung in pipe_read
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_write
testing release v4.13
testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0
kernel signature: 99a929156719b4cf917a49a1214921d697822c7a2158f7dc667a420950caf4e5
run #0: crashed: INFO: task hung in pipe_write
run #1: crashed: INFO: task hung in pipe_write
run #2: crashed: INFO: task hung in pipe_write
run #3: crashed: INFO: task hung in pipe_write
run #4: crashed: INFO: task hung in pipe_write
run #5: crashed: INFO: task hung in pipe_read
run #6: crashed: INFO: task hung in pipe_read
run #7: crashed: INFO: task hung in pipe_write
run #8: crashed: INFO: task hung in pipe_write
run #9: crashed: INFO: task hung in pipe_write
testing release v4.12
testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0
kernel signature: 495d330963d03aead6f175b7a63bba2b37f919103392ddc7b730bf53955a4a62
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: 7a65052cc054c563f4c872a700316c9238a005c146367bb10a738dd5e370bddb
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: 4406d9c9bf94c0d029e3c9f3d2b1a950385d6e236db26077e51e959db89e6075
run #0: crashed: INFO: suspicious RCU usage in pids_can_fork
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
testing release v4.9
testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0
kernel signature: e25dce78e5d370ad25598b3de60bbbf01a49eac67bd95defbd322c7b19eaf9e3
run #0: crashed: WARNING in nf_unregister_net_hook
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
testing release v4.8
testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0
kernel signature: ac2adfdf397a1b667d296a433ba17cf5d61e03e94dd11f9fe6cb2f397874a824
all runs: OK
# git bisect start 69973b830859bc6529a7a0468ba0d80ee5117826 c8d2bc9bc39ebea8437fd974fdbc21847bb897a3
Bisecting: 8695 revisions left to test after this (roughly 13 steps)
[a5af7e1fc69a46f29b977fd4b570e0ac414c2338] rxrpc: Fix loss of PING RESPONSE ACK production due to PING ACKs
testing commit a5af7e1fc69a46f29b977fd4b570e0ac414c2338 with gcc (GCC) 5.5.0
kernel signature: 14550bf293c88b7a867afa47c45ce18b3df924b57d068e9bd2ef870a050b4069
all runs: OK
# git bisect good a5af7e1fc69a46f29b977fd4b570e0ac414c2338
Bisecting: 4759 revisions left to test after this (roughly 12 steps)
[a379f71a30dddbd2e7393624e455ce53c87965d1] Merge branch 'akpm' (patches from Andrew)
testing commit a379f71a30dddbd2e7393624e455ce53c87965d1 with gcc (GCC) 5.5.0
kernel signature: c8ce225f49c23ebacdfd39f08413288e4093abd4c9cfa2280c79c9f33e1168da
all runs: OK
# git bisect good a379f71a30dddbd2e7393624e455ce53c87965d1
Bisecting: 2340 revisions left to test after this (roughly 11 steps)
[133d970e0dadf7b413db19893acc5b26664bf4a1] Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
testing commit 133d970e0dadf7b413db19893acc5b26664bf4a1 with gcc (GCC) 5.5.0
kernel signature: fc43161fe63eb10186ce50ce630079a7e23dd6b0e9849811eb42ff1a4815ee22
all runs: OK
# git bisect good 133d970e0dadf7b413db19893acc5b26664bf4a1
Bisecting: 1170 revisions left to test after this (roughly 10 steps)
[94ea29b116652b8b08934493fae68a6b83e2bc45] Merge tag 'sunxi-drm-fixes-for-4.9' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-fixes
testing commit 94ea29b116652b8b08934493fae68a6b83e2bc45 with gcc (GCC) 5.5.0
kernel signature: 648eb798e2dbdf67063cb1c68073b525865cc61d3c806c95d9f9a3032d59d8a5
all runs: OK
# git bisect good 94ea29b116652b8b08934493fae68a6b83e2bc45
Bisecting: 584 revisions left to test after this (roughly 9 steps)
[697ed8d03909140d95484d46d277a4e46d89b0e5] Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
testing commit 697ed8d03909140d95484d46d277a4e46d89b0e5 with gcc (GCC) 5.5.0
kernel signature: 5228b64dec6ef9b54f101bf085f372612a8a13e99d4c71642e314cca30e7d24e
all runs: OK
# git bisect good 697ed8d03909140d95484d46d277a4e46d89b0e5
Bisecting: 292 revisions left to test after this (roughly 8 steps)
[f2ebf2a6ca94e78be179e8c99d34c87efc5e8bfb] Merge branch 'fixed-phy-phydev-leaks'
testing commit f2ebf2a6ca94e78be179e8c99d34c87efc5e8bfb with gcc (GCC) 5.5.0
kernel signature: eed286c7243fc1ca1f41d02dd23f74c987629ad7b0d572fb27d8799eb305cf6c
all runs: OK
# git bisect good f2ebf2a6ca94e78be179e8c99d34c87efc5e8bfb
Bisecting: 146 revisions left to test after this (roughly 7 steps)
[14dd3e1b970feb125e4f453bc3b0569db5b2069b] net: af_mpls.c add space before open parenthesis
testing commit 14dd3e1b970feb125e4f453bc3b0569db5b2069b with gcc (GCC) 5.5.0
kernel signature: ec1bc3f2ab9c7433d00c8f184653fd11414dc6555fb326a6ce22b8c3dfe74973
all runs: OK
# git bisect good 14dd3e1b970feb125e4f453bc3b0569db5b2069b
Bisecting: 73 revisions left to test after this (roughly 6 steps)
[9cecb138e54c54989375bceeb448affcdf03497f] net: ethernet: lantiq_etop: Call SET_NETDEV_DEV()
testing commit 9cecb138e54c54989375bceeb448affcdf03497f with gcc (GCC) 5.5.0
kernel signature: 7c29cda5f1fc4be7e0462718773d4789aabf4a408508ddd9ea71d7dbc9bd8ad4
all runs: OK
# git bisect good 9cecb138e54c54989375bceeb448affcdf03497f
Bisecting: 35 revisions left to test after this (roughly 5 steps)
[1ca17e97966aa4b651e56861f83695e3645bf954] Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
testing commit 1ca17e97966aa4b651e56861f83695e3645bf954 with gcc (GCC) 5.5.0
kernel signature: 526441174b047edd83e1fc0a6f0ffc7f9ab077225c60eacb251d2ed9b2928605
all runs: OK
# git bisect good 1ca17e97966aa4b651e56861f83695e3645bf954
Bisecting: 16 revisions left to test after this (roughly 4 steps)
[810ac7b7558d7830e72d8dbf34b851fce39e08b0] Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
testing commit 810ac7b7558d7830e72d8dbf34b851fce39e08b0 with gcc (GCC) 5.5.0
kernel signature: a9234d2f23ecfc51b1d8dde970ff7f7ebe8b84999f9dbedc2ba6e58e66d4a89b
all runs: OK
# git bisect good 810ac7b7558d7830e72d8dbf34b851fce39e08b0
Bisecting: 10 revisions left to test after this (roughly 3 steps)
[678b5c6b22fed89a13d5b2267f423069a9b11c80] crypto: algif_aead - fix uninitialized variable warning
testing commit 678b5c6b22fed89a13d5b2267f423069a9b11c80 with gcc (GCC) 5.5.0
kernel signature: f332e35a5e6705bfa2a2436492e2c13799d24d0813a69c64dd74fedf93bb6ec8
all runs: OK
# git bisect good 678b5c6b22fed89a13d5b2267f423069a9b11c80
Bisecting: 5 revisions left to test after this (roughly 3 steps)
[d33695fbfab73a4a6550fa5c2d0bacc68d7c5901] net: mlx5: Fix Kconfig help text
testing commit d33695fbfab73a4a6550fa5c2d0bacc68d7c5901 with gcc (GCC) 5.5.0
kernel signature: 07d7ab9d3dfe51d9fb18e33efece5210b543920f94ec8adc815b1a31385105df
all runs: OK
# git bisect good d33695fbfab73a4a6550fa5c2d0bacc68d7c5901
Bisecting: 3 revisions left to test after this (roughly 2 steps)
[045169816b31b10faed984b01c390db1b32ee4c1] Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
revisions tested: 34, total time: 8h3m26.394391632s (build: 2h52m56.50515218s, test: 5h4m21.03049088s)
error: bisection is taking too long (>8h0m0s), aborting