bisecting cause commit starting from 4c900a6b4e057fc9623240682988e203ae98ca94
building syzkaller on b712935571355df44e126c5b27c98ccd53d1d18b
testing commit 4c900a6b4e057fc9623240682988e203ae98ca94 with gcc (GCC) 8.1.0
kernel signature: 7341568b80d2335facfe42a1349cd0cbce7c6bb448b15fd9edea4e204aad0cf6
run #0: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #1: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #2: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #3: crashed: general protection fault in l2cap_chan_put
run #4: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #5: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #6: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #7: crashed: WARNING: locking bug in l2cap_chan_del
run #8: crashed: WARNING: refcount bug in l2cap_sock_kill
run #9: crashed: INFO: trying to register non-static key in l2cap_chan_del
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.1.0
kernel signature: aad0e8bd2cbf8f63cc5310ee232e5a818ce7c29f96bc107a73041a5c5927c47e
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: BUG: unable to handle kernel paging request in lock_sock_nested
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.1.0
kernel signature: 5e3bbb15e19121284893243ca3f0f75c5eb80ea99fa919512cb1bccc3b7ede2a
run #0: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: KASAN: use-after-free Read in lock_sock_nested
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.1.0
kernel signature: 9ee400cbf9ca2584866bb8e6a97084789b82cb3a01af8da0bc20410434204747
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0
kernel signature: 3941cc5de2c7edb46b701482a20536138cf7cfb9324efe49cf531e648ab39e17
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0
kernel signature: c5449d04b18b1b6d30fe2a689c18bc56eabc45fa703d09eb1c9a904b5c7d30a4
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0
kernel signature: 4635a33562809a928045c9e1374963949126158b1a480ddd9fb3cbedd83b5136
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #5: crashed: KASAN: use-after-free Read in lock_sock_nested
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0
kernel signature: 4f40d4630ec4d7ad3b1bd388f49c0ddb7224bef9a67232188a8c7c0b7a77d5be
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0
kernel signature: ecba41bcdcd7de5746217972a46a0a4793bf5ba41a1e8e6dfa448e33b9f82c6c
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: KASAN: use-after-free Read in lock_sock_nested
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: INFO: trying to register non-static key in l2cap_chan_del
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0
kernel signature: 7a99fc1f98bc545928e3f046ba083b181c4413c764c201638100d964c27f50fa
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0
kernel signature: 82e626a65ce54562132cf4c59bad332301220c596965d531ea2120c51b3c2444
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.18
testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0
kernel signature: 9f76dfa4e25ed9e688efbc797a7ba88b4fb531153c36d48ff12347d6b914b62a
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: KASAN: use-after-free Read in lock_sock_nested
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.17
testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0
kernel signature: 7e7dbbe4fbccff3e79020bf9ea2219c0fbc1ddb112f97386cf27463202b258a6
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.16
testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0
kernel signature: c5cf2a4d314344bbcb007fa682a78c6af318098ca3cbfdde9239e18d408f01cb
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: KASAN: slab-out-of-bounds Read in lock_sock_nested
run #2: crashed: KASAN: use-after-free Read in lock_sock_nested
run #3: crashed: KASAN: use-after-free Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: KASAN: use-after-free Read in lock_sock_nested
run #6: crashed: KASAN: use-after-free Read in lock_sock_nested
run #7: crashed: KASAN: use-after-free Read in lock_sock_nested
run #8: crashed: KASAN: use-after-free Read in lock_sock_nested
run #9: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.15
testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0
kernel signature: e0e6ce924f6c7e240c0b81e4829f6f2244a2038ef20acb0492fa7271c2be1985
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.14
testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0
kernel signature: 30b783bb788df4b77a0adeefb79c3c6ef865ba951ee6914b04ef6af4fc03676a
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.13
testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0
kernel signature: a77bfeaae91c853e17c54c15b2b2a4ff700199d3ed85e4424622ead99f65c07a
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.12
testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0
kernel signature: 091a44e2d29f972c277420421d0b093e74f4fd477bd1570f3acc8d6555090679
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: 3989c82ca58769e3a76f3e1f0ba0284f02ae2fa85c4d0a756b8c598ae2904a2c
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: 7fca054fa88bd0a62d9d69a40f41c13780597c9ba986c7a250ff5c1a82b7bc9d
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.9
testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0
kernel signature: 97ef695dcee92a1d03875c4b1b0b34c4df12a608d41a8e8e42a56ac4f1da7442
all runs: OK
# git bisect start c470abd4fde40ea6a0846a2beab642a578c0b8cd 69973b830859bc6529a7a0468ba0d80ee5117826
Bisecting: 7099 revisions left to test after this (roughly 13 steps)
[f4000cd99750065d5177555c0a805c97174d1b9f] Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
testing commit f4000cd99750065d5177555c0a805c97174d1b9f with gcc (GCC) 5.5.0
kernel signature: 9376307a90cc204682300d2b4315c910f9e5d596a175368c81db2461f4851adf
run #0: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #1: boot failed: can't ssh into the instance
run #2: boot failed: can't ssh into the instance
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: can't ssh into the instance
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #7: boot failed: can't ssh into the instance
run #8: boot failed: can't ssh into the instance
run #9: boot failed: can't ssh into the instance
# git bisect skip f4000cd99750065d5177555c0a805c97174d1b9f
Bisecting: 7099 revisions left to test after this (roughly 13 steps)
[ab1effc09519f3bb4b84dd6d8276cedf07b17a1b] staging: ks7010: Add blank line after declarations
testing commit ab1effc09519f3bb4b84dd6d8276cedf07b17a1b with gcc (GCC) 5.5.0
kernel signature: 44a287af29785b41b1732170ba5f29af23b9e49538846a0c089b980e651eef62
all runs: OK
# git bisect good ab1effc09519f3bb4b84dd6d8276cedf07b17a1b
Bisecting: 7022 revisions left to test after this (roughly 13 steps)
[09cb6464fe5e7fcd5177911429badd139c4481b7] Merge tag 'for-f2fs-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
testing commit 09cb6464fe5e7fcd5177911429badd139c4481b7 with gcc (GCC) 5.5.0
kernel signature: 2154e7367fa8c303af71b4424fa54ff1057d62582a126b3ee0b13a93fbb0cf02
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-executor" "root@10.128.0.80:./syz-executor"]: exit status 1
Connection timed out during banner exchange
lost connection

run #1: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.10.24:./syz-fuzzer"]
run #2: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in sd-resolve:LINE
run #3: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #4: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #5: boot failed: can't ssh into the instance
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #7: boot failed: can't ssh into the instance
run #8: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
run #9: boot failed: can't ssh into the instance
# git bisect skip 09cb6464fe5e7fcd5177911429badd139c4481b7
Bisecting: 7022 revisions left to test after this (roughly 13 steps)
[68226b4dfa9b2e064e2f9e792bf7469f465054c7] [media] dvb-tc90522: Rename a jump label in tc90522_probe()
testing commit 68226b4dfa9b2e064e2f9e792bf7469f465054c7 with gcc (GCC) 5.5.0
kernel signature: ef6f129209c1be676660d1c4b123ae479e8175b140fcf9b08151c57c5d78dbe3
all runs: OK
# git bisect good 68226b4dfa9b2e064e2f9e792bf7469f465054c7
Bisecting: 6886 revisions left to test after this (roughly 13 steps)
[d03502684b65492339d70f11aa8ed6df3961a3bf] s390/zcrypt: add missing memory clobber to ap_qci inline assembly
testing commit d03502684b65492339d70f11aa8ed6df3961a3bf with gcc (GCC) 5.5.0
kernel signature: 64ed5eafb33c8fb9ab1409f48fd674b5ba5424b030c64121fa95f35d39534d95
run #0: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #1: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #2: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: can't ssh into the instance
run #6: boot failed: can't ssh into the instance
run #7: boot failed: can't ssh into the instance
run #8: boot failed: can't ssh into the instance
run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
# git bisect skip d03502684b65492339d70f11aa8ed6df3961a3bf
Bisecting: 6886 revisions left to test after this (roughly 13 steps)
[a149e7c7ce812561f0fdc7a86ddc42f294e5eb3e] ipv6: sr: add support for SRH injection through setsockopt
testing commit a149e7c7ce812561f0fdc7a86ddc42f294e5eb3e with gcc (GCC) 5.5.0
kernel signature: 1f2ec7c15f340ebd289ac4e6988536408f0dd295c8fc2ccd7bf84df8ab96fdf9
all runs: OK
# git bisect good a149e7c7ce812561f0fdc7a86ddc42f294e5eb3e
Bisecting: 6483 revisions left to test after this (roughly 13 steps)
[a829a8445f09036404060f4d6489cb13433f4304] Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
testing commit a829a8445f09036404060f4d6489cb13433f4304 with gcc (GCC) 5.5.0
kernel signature: 1c9a54981dffb74b6c93d4ff1f6a797b0ba00252382dc5f56c50c8f299f53040
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.148:./syz-fuzzer"]: exit status 1
Connection timed out during banner exchange
lost connection

run #1: boot failed: can't ssh into the instance
run #2: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #6: boot failed: can't ssh into the instance
run #7: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #8: boot failed: can't ssh into the instance
run #9: boot failed: can't ssh into the instance
# git bisect skip a829a8445f09036404060f4d6489cb13433f4304
Bisecting: 6483 revisions left to test after this (roughly 13 steps)
[9004fda59577d439564d44d6d1db52d262fe3f99] Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit 9004fda59577d439564d44d6d1db52d262fe3f99 with gcc (GCC) 5.5.0
kernel signature: 57de5adfe51d43a85758cc300653457676ea2234e4cbc418375619635832adc4
run #0: crashed: WARNING: unrecognized kernel stack return address ADDR at ADDR in sshd:LINE
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 9004fda59577d439564d44d6d1db52d262fe3f99
Bisecting: 5393 revisions left to test after this (roughly 13 steps)
[72cca7baf4fba777b8ab770b902cf2e08941773f] Merge tag 'staging-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
testing commit 72cca7baf4fba777b8ab770b902cf2e08941773f with gcc (GCC) 5.5.0
kernel signature: 9c73e7a42f394461d18046ca0fd01a67c0594ee8b4b55192b233e36a616e0560
run #0: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
run #1: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
run #2: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: can't ssh into the instance
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
run #7: boot failed: can't ssh into the instance
run #8: boot failed: can't ssh into the instance
run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
# git bisect skip 72cca7baf4fba777b8ab770b902cf2e08941773f
Bisecting: 5393 revisions left to test after this (roughly 13 steps)
[0462554707d62d53fc400ecb3cc19d7f9c786b95] Kconfig: lib/Kconfig.ubsan fix reference to ubsan documentation
testing commit 0462554707d62d53fc400ecb3cc19d7f9c786b95 with gcc (GCC) 5.5.0
kernel signature: b3b5f3bd39fc37c31ebce40eda5111e4037884b0b8859112b379f0ce9a9aacc2
run #0: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.15.204:./syz-fuzzer"]
run #1: basic kernel testing failed: failed to copy test binary to VM: timedout ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.164:./syz-fuzzer"]
run #2: boot failed: can't ssh into the instance
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #6: boot failed: can't ssh into the instance
run #7: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
run #8: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #9: boot failed: can't ssh into the instance
# git bisect skip 0462554707d62d53fc400ecb3cc19d7f9c786b95
Bisecting: 5393 revisions left to test after this (roughly 13 steps)
[076802d0061520bc646ee121fe0f34fce6c55a93] mei: bus: enable non-blocking RX
testing commit 076802d0061520bc646ee121fe0f34fce6c55a93 with gcc (GCC) 5.5.0
kernel signature: 7f404143d3b65062aa0d8464fa412bb5303199fc119eeaf59587e8d1c63784be
all runs: OK
# git bisect good 076802d0061520bc646ee121fe0f34fce6c55a93
Bisecting: 5289 revisions left to test after this (roughly 13 steps)
[961288108e26e5024801c75d0e7c8e9a2de2b02b] Merge tag 'rpmsg-v4.10' of git://github.com/andersson/remoteproc
testing commit 961288108e26e5024801c75d0e7c8e9a2de2b02b with gcc (GCC) 5.5.0
kernel signature: 901e742c5589486fe69fc6c75242593c7039957e17c5c45d50bb4fec52453e72
run #0: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #1: boot failed: can't ssh into the instance
run #2: boot failed: can't ssh into the instance
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: can't ssh into the instance
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-timesyn:LINE
run #7: boot failed: can't ssh into the instance
run #8: boot failed: can't ssh into the instance
run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
# git bisect skip 961288108e26e5024801c75d0e7c8e9a2de2b02b
Bisecting: 5289 revisions left to test after this (roughly 13 steps)
[d8a0cbfd73cb7281120d1b49f90afeef26ad48a2] blk-wbt: store queue instead of bdi
testing commit d8a0cbfd73cb7281120d1b49f90afeef26ad48a2 with gcc (GCC) 5.5.0
kernel signature: c255346f211fa6bd4da0b602e5634e1a5b30940b20e52549a9c1814a49f26a88
all runs: OK
# git bisect good d8a0cbfd73cb7281120d1b49f90afeef26ad48a2
Bisecting: 5289 revisions left to test after this (roughly 12 steps)
[05d7d3b0bd07e3990ab7a39ee93be28dbf7091d4] scsi: libfc: Replace ->rport_login callback with function call
testing commit 05d7d3b0bd07e3990ab7a39ee93be28dbf7091d4 with gcc (GCC) 5.5.0
kernel signature: 1674393db75367b1765f1f431a605a4abdd058b6f4967594fc59b67b06aef2f3
all runs: OK
# git bisect good 05d7d3b0bd07e3990ab7a39ee93be28dbf7091d4
Bisecting: 5199 revisions left to test after this (roughly 12 steps)
[3a6536c51d5db3adf58dcd466a3aee6233b58544] drm/nouveau: Intercept ACPI_VIDEO_NOTIFY_PROBE
testing commit 3a6536c51d5db3adf58dcd466a3aee6233b58544 with gcc (GCC) 5.5.0
kernel signature: a20acf2a7619f56ae9dec7fd8f50d35f0496dd3a41502f51530031106f762d87
all runs: OK
# git bisect good 3a6536c51d5db3adf58dcd466a3aee6233b58544
Bisecting: 5131 revisions left to test after this (roughly 12 steps)
[7b882cb800095f216c9da6b6735d10d26df8168b] Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
testing commit 7b882cb800095f216c9da6b6735d10d26df8168b with gcc (GCC) 5.5.0
kernel signature: 91548611941d62b96ebb1e61a7c41d97d3f7e90a93e2ce969600070e4758937f
run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/bin/linux_amd64/syz-fuzzer" "root@10.128.0.174:./syz-fuzzer"]: exit status 1
Connection timed out during banner exchange
lost connection

run #1: boot failed: can't ssh into the instance
run #2: boot failed: can't ssh into the instance
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: can't ssh into the instance
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
run #7: boot failed: can't ssh into the instance
run #8: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #9: boot failed: can't ssh into the instance
# git bisect skip 7b882cb800095f216c9da6b6735d10d26df8168b
Bisecting: 5131 revisions left to test after this (roughly 12 steps)
[9a1a1c08dc285df9460a2b1b3de2bca129ebc6e2] crypto: caam - merge identical ahash_final/finup shared desc
testing commit 9a1a1c08dc285df9460a2b1b3de2bca129ebc6e2 with gcc (GCC) 5.5.0
kernel signature: 60bac869bfcbdf38bad9da2dc6e49118a5b482b1fe1a0286c175cdc21b9768e5
all runs: OK
# git bisect good 9a1a1c08dc285df9460a2b1b3de2bca129ebc6e2
Bisecting: 5092 revisions left to test after this (roughly 12 steps)
[098c30557a9a19827240aaadc137e4668157dc6b] Merge tag 'driver-core-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
testing commit 098c30557a9a19827240aaadc137e4668157dc6b with gcc (GCC) 5.5.0
kernel signature: 51f3cfacbf07263fecf2cd7aee9b55d973dac2f472a907dacdebe09860278dec
run #0: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #1: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #2: boot failed: can't ssh into the instance
run #3: boot failed: can't ssh into the instance
run #4: boot failed: can't ssh into the instance
run #5: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #6: boot failed: can't ssh into the instance
run #7: boot failed: can't ssh into the instance
run #8: boot failed: can't ssh into the instance
run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in ifupdown-hotplu:LINE
# git bisect skip 098c30557a9a19827240aaadc137e4668157dc6b
Bisecting: 5092 revisions left to test after this (roughly 12 steps)
[c06696a9582098e4e12b027effa405135f79aaa5] rtl8xxxu: tx rate reported before set
testing commit c06696a9582098e4e12b027effa405135f79aaa5 with gcc (GCC) 5.5.0
kernel signature: 755c5087d020d0b0aecd78944e18c7bf0ba16b1337ff0fb0a69c76ea978e0e16
all runs: OK
# git bisect good c06696a9582098e4e12b027effa405135f79aaa5
Bisecting: 5017 revisions left to test after this (roughly 12 steps)
[20737738d397dfadbca1ea50dcc00d7259f500cf] Merge branch 'md-next' into md-linus
revisions tested: 40, total time: 8h12m29.536198044s (build: 3h19m33.77988697s, test: 4h47m51.071113898s)
error: bisection is taking too long (>8h0m0s), aborting