bisecting cause commit starting from 06a7a37be55e29961c9ba2abec4d07c8e0e21861
building syzkaller on bc15f7dbbc1c6e2042a7115b3fdacc0ada8c35e7
testing commit 06a7a37be55e29961c9ba2abec4d07c8e0e21861 with gcc (GCC) 8.1.0
kernel signature: bb499263946764bec9277d50e69437fd8305bd211a5c856d062e01d16ade8e0e
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: INFO: trying to register non-static key 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 v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0
kernel signature: e1b1926dce37905706bd8b041f8eb925ac0559a95b68acb26ed5508f2b8397ea
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: WARNING: locking bug in l2cap_chan_del
run #3: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #4: crashed: WARNING: refcount bug in l2cap_sock_kill
run #5: crashed: INFO: trying to register non-static key in l2cap_chan_del
run #6: crashed: WARNING: refcount bug in l2cap_sock_kill
run #7: crashed: WARNING: refcount bug in l2cap_sock_kill
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: e80c7cb2d3c994adf6240469eddc1709387a74c73be4045c45c293b2e3ff4a4b
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: 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: 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: 177bcc4f6643281f507de6c0f7507ad851875e2ae473828ecc0583102117379a
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: INFO: trying to register non-static key in l2cap_chan_del
run #5: crashed: WARNING in mark_lock
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: af53c6257f85d159aceb1f5e398e740ca5ae58dd83151545931e717cbdb111ce
run #0: crashed: KASAN: use-after-free Read in lock_sock_nested
run #1: crashed: WARNING in mark_lock
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: INFO: trying to register non-static key in l2cap_chan_del
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.1.0
kernel signature: 7080f2884ed46fda5a8280a8e3acecaaceb4e2bd0b8bbb579a8d061cc37886d3
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: slab-out-of-bounds 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: slab-out-of-bounds 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 v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.1.0
kernel signature: b5db6ea6cdc77ac2ae94adac8696f28603e0fafd29ef00c7612424b04b407cb4
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: out-of-bounds 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 v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0
kernel signature: 0c531939b558145fbc750e2015f86fe996feeba7bc546c53ebec2c00ac33b5fe
all runs: 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: fa3ec905c6a2f5d977e9eb6a1e429343e8e446d662812b7cfb3504c1feac0df5
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: 68a6693de506638b679b3ff4b567952b8f3bc45896c2d3c4c236c85aa71a4763
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0
kernel signature: f9461a6524de5388848973a75fc0bb064daf3dd5502d9b5d4dcec680cf100ad0
all runs: 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: aa51c034e8fa62c74588f1142d45c4cc0a78778cc6acdab73626bb2e6467fd75
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: 88c3c6c24f31243cf72f0faf88aba5573c78880e31fbd38f181936277697cc28
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 v4.17
testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0
kernel signature: 86284133996d0fef34bc544c7620aa76e90d9994e2d004b3006a28495fa9dbae
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: 35e8c77c4f2697bf8c7c30a83d1bc701695c7e2894b458108aeb1d6c725bfd97
all runs: 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: 1e969572c2243efe347ea8234be5b3870589ac7e589443f2985a323f3d4ad343
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: INFO: trying to register non-static key in l2cap_chan_del
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 v4.14
testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0
kernel signature: d7e7a5be98360d09ab3898e8da0930332a21a034801679c3418d105e178abffa
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: b004dc9b92ace6070061a5e8b1be0df3d75ba00618596280020dc3e76688c7a3
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 v4.12
testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0
kernel signature: ee1f9628ad50582d2b70becdde9699b84bccdb199996b42097b4a1179a308ffc
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: aaad934c3ecc8e01b553007229e7cc9a43cfd00c01ab4c99eee095b856217407
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: 543c98782b9bab60246214b3447258f323526cccc47a6fe414b7a08775ff322e
run #0: crashed: KASAN: slab-out-of-bounds Read in lock_sock_nested
run #1: crashed: KASAN: use-after-free Read in lock_sock_nested
run #2: crashed: KASAN: slab-out-of-bounds Read in lock_sock_nested
run #3: crashed: KASAN: slab-out-of-bounds Read in lock_sock_nested
run #4: crashed: KASAN: use-after-free Read in lock_sock_nested
run #5: crashed: KASAN: slab-out-of-bounds 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 v4.9
testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0
kernel signature: b536a28e62ba008f6349699b8f4f72060b3e4a2c47937b79d6ad69f96654ff30
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: 10270d5476cb3663c54fa0ab8a2c54e9696e5e31110301768f7f2e63cb055cc8
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@10.128.10.58:./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: WARNING: unrecognized kernel stack return address ADDR at ADDR in ifupdown-hotplu: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 systemd-timesyn:LINE
# 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: 39112d8218a5826b7dc2ea7c08244033f5bcd387f07c84d2db8951093d523b8e
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: 33b06a9c07672bc834c52e22fec90fc767d7e701449e81514bed724eaf6e2a6a
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@10.128.0.223:./syz-fuzzer"]
run #1: boot failed: can't ssh into the instance
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 (imesyncd):LINE
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: 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 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: 1fd3ca36fac0f526473e40ce87736907be478fc106bcb55663fd6b3bfdb0a2f4
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: f5e217afa1dec7b52ea68fc400021231afa9088b5422cbc373603c82f967dadb
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@10.128.0.92:./syz-fuzzer"]
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: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
run #4: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #5: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
run #6: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in (imesyncd):LINE
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 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: bdbfebc01e234788a0b16248d54295cf598b049d0702af625708e3180ff9dbe6
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: f534cd12b4b1febd3cd204463b44d3336969243813acec0bd1eed4930567965b
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@10.128.10.1:./syz-fuzzer"]
run #1: 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@10.128.10.43:./syz-fuzzer"]: exit status 1
Connection timed out during banner exchange
lost connection

run #2: 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@10.128.1.56:./syz-fuzzer"]: exit status 1
Connection timed out during banner exchange
lost connection

run #3: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in grep: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: can't ssh into the instance
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 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: 1ff724a6339e7c423db1e58986187d8b5b4eb59bed29af68987771cbb33fb4a6
run #0: crashed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd: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: 1172e1aa427cc7215b346c4a94bf949dc790501178f3aac10f30cfccc040e4ee
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@10.128.1.44:./syz-fuzzer"]
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: 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: can't ssh into the instance
# 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: b7b9ae7af835d69cd6b8843c1288eac586d187866dbb3eec41c3f7726a210598
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@10.128.15.196:./syz-fuzzer"]
Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts.

run #1: boot failed: can't ssh into the instance
run #2: boot failed: can't ssh into the instance
run #3: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in systemd-udevd:LINE
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: 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: 8802d6b0382a85ddf539e903679e9f5dcb94428cf1acb2a2a9ba76c3699fc6a2
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: c51bf775400ff16af7bb82ad8cbcbe39e381011ca6d14b19ab18eee60743d363
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@10.128.15.213:./syz-fuzzer"]
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: can't ssh into the instance
run #6: boot failed: can't ssh into the instance
run #7: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in sd-resolve:LINE
run #8: boot failed: can't ssh into the instance
run #9: boot failed: WARNING: unrecognized kernel stack return address ADDR at ADDR in sd-resolve: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: fd343d4d3a18243bc11a06e1aac768c13eb5f85460a76477a0e259a57f022204
run #0: crashed: KASAN: stack-out-of-bounds Read in blk_queue_bio
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 d8a0cbfd73cb7281120d1b49f90afeef26ad48a2
Bisecting: 36 revisions left to test after this (roughly 5 steps)
[1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f] block: add REQ_BACKGROUND
testing commit 1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f with gcc (GCC) 5.5.0
kernel signature: bc1626c711e91051e8cf8b15cbf711ad4a7df612368e5be191829304f3296ef7
run #0: boot failed: INFO: task hung in get_request
run #1: boot failed: INFO: task hung in nmi_cpu_backtrace
run #2: boot failed: INFO: task hung in nmi_cpu_backtrace
run #3: boot failed: INFO: task hung in nmi_cpu_backtrace
run #4: boot failed: INFO: task hung in nmi_cpu_backtrace
run #5: boot failed: INFO: task hung in nmi_cpu_backtrace
run #6: boot failed: INFO: task hung in nmi_cpu_backtrace
run #7: boot failed: INFO: task hung in nmi_cpu_backtrace
run #8: boot failed: INFO: task hung in nmi_cpu_backtrace
run #9: boot failed: INFO: task hung in nmi_cpu_backtrace
# git bisect skip 1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f
Bisecting: 36 revisions left to test after this (roughly 5 steps)
[03ea4afa67566a3c4e83c0fde8bf0c48f16ac1a3] umem: use op_is_sync to check for synchronous requests
testing commit 03ea4afa67566a3c4e83c0fde8bf0c48f16ac1a3 with gcc (GCC) 5.5.0
kernel signature: ff2df77d6c7e36085c4ba81d431fa7628afbe6f77c0b254336ef0423d8900f18
all runs: OK
# git bisect good 03ea4afa67566a3c4e83c0fde8bf0c48f16ac1a3
Bisecting: 25 revisions left to test after this (roughly 5 steps)
[2b053aca76b48e681be57b34ca3a8c2c10b275c5] blk-mq: Add a kick_requeue_list argument to blk_mq_requeue_request()
testing commit 2b053aca76b48e681be57b34ca3a8c2c10b275c5 with gcc (GCC) 5.5.0
kernel signature: 3b86f26b482ca487866523233af81ed66912838bfb772e232195e9b4bac7246a
run #0: boot failed: INFO: task hung in nmi_cpu_backtrace
run #1: boot failed: INFO: task hung in nmi_cpu_backtrace
run #2: boot failed: INFO: task hung in nmi_cpu_backtrace
run #3: boot failed: INFO: task hung in nmi_cpu_backtrace
run #4: boot failed: INFO: task hung in nmi_cpu_backtrace
run #5: boot failed: INFO: task hung in nmi_cpu_backtrace
run #6: boot failed: INFO: task hung in corrupted
run #7: boot failed: INFO: task hung in nmi_cpu_backtrace
run #8: boot failed: INFO: task hung in nmi_cpu_backtrace
run #9: boot failed: INFO: task hung in get_request
# git bisect skip 2b053aca76b48e681be57b34ca3a8c2c10b275c5
Bisecting: 25 revisions left to test after this (roughly 5 steps)
[3174dd33fa8316d29f238f093291ca9bb25e6f58] nvme: Fix a race condition related to stopping queues
testing commit 3174dd33fa8316d29f238f093291ca9bb25e6f58 with gcc (GCC) 5.5.0
kernel signature: 461ad51e9459f5505d7a83f44159cb08d308123adf0fa9feed6fcb71f1026c38
run #0: boot failed: INFO: task hung in nmi_cpu_backtrace
run #1: boot failed: INFO: task hung in nmi_cpu_backtrace
run #2: boot failed: INFO: task hung in get_request
run #3: boot failed: INFO: task hung in nmi_cpu_backtrace
run #4: boot failed: INFO: task hung in nmi_cpu_backtrace
run #5: boot failed: INFO: task hung in nmi_cpu_backtrace
run #6: boot failed: INFO: task hung in nmi_cpu_backtrace
run #7: boot failed: INFO: task hung in nmi_cpu_backtrace
run #8: boot failed: INFO: task hung in get_request
run #9: boot failed: INFO: task hung in nmi_cpu_backtrace
# git bisect skip 3174dd33fa8316d29f238f093291ca9bb25e6f58
Bisecting: 25 revisions left to test after this (roughly 5 steps)
[3bc8492f009c76a9e77cad6e200b0748d3972fa0] skd: fix msix error handling
testing commit 3bc8492f009c76a9e77cad6e200b0748d3972fa0 with gcc (GCC) 5.5.0
kernel signature: bd60d6220201db43ca6dd3cc13170027b5e73b60772bfd6454ee0078a4f0d2b6
all runs: OK
# git bisect good 3bc8492f009c76a9e77cad6e200b0748d3972fa0
Bisecting: 5 revisions left to test after this (roughly 3 steps)
[cf43e6be865a582ba66ee4747ae27a0513f6bba1] block: add scalable completion tracking of requests
revisions tested: 40, total time: 8h13m49.864279779s (build: 3h18m23.322856681s, test: 4h50m46.046548384s)
error: bisection is taking too long (>8h0m0s), aborting