bisecting cause commit starting from abf02e2964b3aaf1d5197c5d7c671e771b0e109e building syzkaller on 34bf9440bd06034f86b5d9ac8afbf078129cbdae testing commit abf02e2964b3aaf1d5197c5d7c671e771b0e109e with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in sys_sendfile64 run #1: crashed: INFO: rcu detected stall in sys_sendfile64 run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in sys_sendfile64 run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in sys_sendfile64 run #6: crashed: INFO: rcu detected stall in sys_sendfile64 run #7: crashed: INFO: rcu detected stall in sys_sendfile64 run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in sys_sendfile64 testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in ext4_file_write_iter run #2: crashed: INFO: rcu detected stall in sys_sendfile64 run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in sys_sendfile64 run #6: crashed: INFO: rcu detected stall in sys_sendfile64 run #7: crashed: INFO: rcu detected stall in ext4_file_write_iter run #8: crashed: INFO: rcu detected stall in sys_sendfile64 run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in ext4_file_write_iter run #1: crashed: INFO: rcu detected stall in sys_sendfile64 run #2: crashed: INFO: rcu detected stall in sys_sendfile64 run #3: crashed: INFO: rcu detected stall in sys_sendfile64 run #4: crashed: INFO: rcu detected stall in sys_sendfile64 run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in sys_sendfile64 run #7: crashed: INFO: rcu detected stall in sys_sendfile64 run #8: crashed: INFO: rcu detected stall in sys_sendfile64 run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in sys_sendfile64 run #1: crashed: INFO: rcu detected stall in ext4_file_write_iter run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in sys_sendfile64 run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in sys_sendfile64 run #8: crashed: INFO: rcu detected stall in sys_sendfile64 run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in ext4_file_write_iter run #1: crashed: INFO: rcu detected stall in sys_sendfile64 run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in sys_sendfile64 run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in ext4_file_write_iter run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in sys_sendfile64 run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in sys_sendfile64 run #3: crashed: INFO: rcu detected stall in ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in sys_sendfile64 run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in sys_sendfile64 run #8: crashed: INFO: rcu detected stall in sys_sendfile64 run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in rw_verify_area run #1: crashed: INFO: rcu detected stall in sys_sendfile64 run #2: crashed: INFO: rcu detected stall in sys_sendfile64 run #3: crashed: INFO: rcu detected stall in sys_sendfile64 run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in sys_sendfile64 run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in sys_sendfile64 run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in ext4_file_write_iter run #1: crashed: INFO: rcu detected stall in sendfile64 run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in sendfile64 run #7: crashed: INFO: rcu detected stall in rw_verify_area run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in sendfile64 testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in ext4_file_write_iter run #1: crashed: INFO: rcu detected stall in ext4_file_write_iter run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter run #3: crashed: INFO: rcu detected stall in ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in ext4_file_write_iter run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in corrupted run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: crashed: INFO: rcu detected stall in ext4_file_write_iter run #5: crashed: INFO: rcu detected stall in corrupted run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in corrupted run #8: crashed: INFO: rcu detected stall in ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 run #0: crashed: INFO: rcu detected stall in corrupted run #1: crashed: INFO: rcu detected stall in corrupted run #2: crashed: INFO: rcu detected stall in corrupted run #3: crashed: INFO: rcu detected stall in corrupted run #4: 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" "/tmp/syz-executor522799615" "root@10.128.15.192:./syz-executor522799615"]: exit status 1 Connection timed out during banner exchange lost connection run #5: 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" "/tmp/syz-executor503318866" "root@10.128.0.228:./syz-executor503318866"]: exit status 1 Connection timed out during banner exchange lost connection run #6: 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" "/tmp/syz-executor478173833" "root@10.128.0.102:./syz-executor478173833"]: exit status 1 ssh: connect to host 10.128.0.102 port 22: Connection timed out lost connection run #7: 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" "/tmp/syz-executor858885716" "root@10.128.10.56:./syz-executor858885716"]: exit status 1 ssh: connect to host 10.128.10.56 port 22: Connection timed out lost connection run #8: 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" "/tmp/syz-executor435314595" "root@10.128.10.47:./syz-executor435314595"]: exit status 1 Connection timed out during banner exchange lost connection run #9: 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" "/tmp/syz-executor827040934" "root@10.128.15.194:./syz-executor827040934"]: exit status 1 Connection timed out during banner exchange lost connection testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 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" "/tmp/syz-executor918200199" "root@10.128.10.51:./syz-executor918200199"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor001430330" "root@10.128.15.199:./syz-executor001430330"]: 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" "/tmp/syz-executor256566097" "root@10.128.0.154:./syz-executor256566097"]: exit status 1 Connection timed out during banner exchange lost connection run #3: 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" "/tmp/syz-executor583300373" "root@10.128.15.202:./syz-executor583300373"]: exit status 1 Connection timed out during banner exchange lost connection run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect start v4.10 v4.9 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 all runs: 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 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" "/tmp/syz-executor413846365" "root@10.128.0.242:./syz-executor413846365"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor549402904" "root@10.128.0.67:./syz-executor549402904"]: 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" "/tmp/syz-executor064620439" "root@10.128.0.65:./syz-executor064620439"]: exit status 1 Connection timed out during banner exchange lost connection run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: 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 all runs: 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 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" "/tmp/syz-executor040074176" "root@10.128.1.58:./syz-executor040074176"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor553170975" "root@10.128.0.4:./syz-executor553170975"]: 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" "/tmp/syz-executor805740457" "root@10.128.15.209:./syz-executor805740457"]: exit status 1 Connection timed out during banner exchange lost connection run #3: 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" "/tmp/syz-executor311497965" "root@10.128.15.206:./syz-executor311497965"]: exit status 1 Connection timed out during banner exchange lost connection run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: 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 all runs: 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 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" "/tmp/syz-executor548100043" "root@10.128.10.29:./syz-executor548100043"]: exit status 1 ssh: connect to host 10.128.10.29 port 22: Connection timed out lost connection 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" "/tmp/syz-executor714191925" "root@10.128.15.194:./syz-executor714191925"]: 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" "/tmp/syz-executor423441424" "root@10.128.10.49:./syz-executor423441424"]: exit status 1 Connection timed out during banner exchange lost connection run #3: 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" "/tmp/syz-executor781611055" "root@10.128.10.28:./syz-executor781611055"]: exit status 1 Connection timed out during banner exchange lost connection run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: 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 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@10.128.1.46:./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: 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 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 run #0: crashed: INFO: rcu detected stall in corrupted 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" "/tmp/syz-executor362364673" "root@10.128.0.24:./syz-executor362364673"]: exit status 1 ssh: connect to host 10.128.0.24 port 22: Connection timed out 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" "/tmp/syz-executor547550316" "root@10.128.0.137:./syz-executor547550316"]: exit status 1 ssh: connect to host 10.128.0.137 port 22: Connection timed out lost connection run #3: 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" "/tmp/syz-executor172098267" "root@10.128.0.162:./syz-executor172098267"]: exit status 1 Connection timed out during banner exchange lost connection run #4: 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" "/tmp/syz-executor196108926" "root@10.128.15.197:./syz-executor196108926"]: exit status 1 ssh: connect to host 10.128.15.197 port 22: Connection timed out lost connection run #5: 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" "/tmp/syz-executor119523781" "root@10.128.1.47:./syz-executor119523781"]: exit status 1 Connection timed out during banner exchange lost connection run #6: OK run #7: OK run #8: OK run #9: 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" "/tmp/syz-executor068922464" "root@10.128.15.199:./syz-executor068922464"]: exit status 1 Connection timed out during banner exchange lost connection # 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 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@10.128.15.214:./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: 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 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@10.128.0.171:./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: 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 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" "/tmp/syz-executor117707238" "root@10.128.15.201:./syz-executor117707238"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor089356808" "root@10.128.15.203:./syz-executor089356808"]: exit status 1 ssh: connect to host 10.128.15.203 port 22: Connection timed out lost connection run #2: OK run #3: OK run #4: OK run #5: OK run #6: 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" "/tmp/syz-executor616218044" "root@10.128.15.197:./syz-executor616218044"]: exit status 1 ssh: connect to host 10.128.15.197 port 22: Connection timed out lost connection run #7: OK run #8: OK run #9: 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 all runs: boot failed: can't ssh into the instance # 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 all runs: crashed: KASAN: stack-out-of-bounds Read in blk_queue_bio # 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 all runs: boot failed: INFO: task hung in get_request # 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 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" "/tmp/syz-executor385290594" "root@10.128.10.8:./syz-executor385290594"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor459030771" "root@10.128.10.44:./syz-executor459030771"]: exit status 1 Connection timed out during banner exchange lost connection run #2: OK run #3: 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" "/tmp/syz-executor029546422" "root@10.128.10.11:./syz-executor029546422"]: exit status 1 Connection timed out during banner exchange lost connection run #4: 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" "/tmp/syz-executor101477277" "root@10.128.1.6:./syz-executor101477277"]: exit status 1 Connection timed out during banner exchange lost connection run #5: OK run #6: OK run #7: OK run #8: OK run #9: 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 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: KASAN: use-after-free Read in KSTK_ESP run #9: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat # 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 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat run #3: boot failed: INFO: task hung in corrupted run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # 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 all runs: crashed: KASAN: stack-out-of-bounds Read in blk_queue_bio # git bisect bad 3bc8492f009c76a9e77cad6e200b0748d3972fa0 Bisecting: 19 revisions left to test after this (roughly 4 steps) [fd00144301d64f1742541a3c5e64cd1c51f39c55] blk-mq: Introduce blk_mq_queue_stopped() testing commit fd00144301d64f1742541a3c5e64cd1c51f39c55 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip fd00144301d64f1742541a3c5e64cd1c51f39c55 Bisecting: 19 revisions left to test after this (roughly 4 steps) [7b17c2f7292ba1f3f98dae3f7077f9e569653276] dm: Fix a race condition related to stopping and starting queues testing commit 7b17c2f7292ba1f3f98dae3f7077f9e569653276 with gcc (GCC) 5.5.0 run #0: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: KASAN: use-after-free Read in KSTK_ESP run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 7b17c2f7292ba1f3f98dae3f7077f9e569653276 Bisecting: 19 revisions left to test after this (roughly 4 steps) [ae5b2ec8ad5e017126cd4552220f25ce8a6b92e9] block: set REQ_SYNC if we clear REQ_FUA|REQ_PREFLUSH testing commit ae5b2ec8ad5e017126cd4552220f25ce8a6b92e9 with gcc (GCC) 5.5.0 all runs: crashed: KASAN: stack-out-of-bounds Read in blk_queue_bio # git bisect bad ae5b2ec8ad5e017126cd4552220f25ce8a6b92e9 Bisecting: 19 revisions left to test after this (roughly 4 steps) [5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9] blk-mq: Introduce blk_mq_hctx_stopped() testing commit 5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 Bisecting: 19 revisions left to test after this (roughly 4 steps) [83b5df67c50995ed93b2b7adac3f002ad8bb6069] bcache: use op_is_sync to check for synchronous requests testing commit 83b5df67c50995ed93b2b7adac3f002ad8bb6069 with gcc (GCC) 5.5.0 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" "/tmp/syz-executor131884596" "root@10.128.0.227:./syz-executor131884596"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor984672045" "root@10.128.0.192:./syz-executor984672045"]: 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" "/tmp/syz-executor563880616" "root@10.128.0.222:./syz-executor563880616"]: exit status 1 Connection timed out during banner exchange lost connection run #3: OK run #4: OK run #5: OK run #6: OK run #7: 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" "/tmp/syz-executor776351324" "root@10.128.0.219:./syz-executor776351324"]: exit status 1 Connection timed out during banner exchange lost connection run #8: OK run #9: OK # git bisect good 83b5df67c50995ed93b2b7adac3f002ad8bb6069 Bisecting: 18 revisions left to test after this (roughly 4 steps) [7281b4526cefc898d180850b54d1369f38c6b202] block: remove the CONFIG_BLOCK ifdef in blk_types.h testing commit 7281b4526cefc898d180850b54d1369f38c6b202 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in corrupted run #9: boot failed: INFO: task hung in get_request # git bisect skip 7281b4526cefc898d180850b54d1369f38c6b202 Bisecting: 18 revisions left to test after this (roughly 4 steps) [6f6b29171a192e84b666c816e49d2175afbbb09f] block: don't use REQ_SYNC in the READ_SYNC definition testing commit 6f6b29171a192e84b666c816e49d2175afbbb09f with gcc (GCC) 5.5.0 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" "/tmp/syz-executor350345040" "root@10.128.0.148:./syz-executor350345040"]: exit status 1 Connection timed out during banner exchange lost connection 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" "/tmp/syz-executor782764665" "root@10.128.0.173:./syz-executor782764665"]: 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" "/tmp/syz-executor516988179" "root@10.128.1.14:./syz-executor516988179"]: exit status 1 Connection timed out during banner exchange lost connection run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 6f6b29171a192e84b666c816e49d2175afbbb09f Bisecting: 17 revisions left to test after this (roughly 4 steps) [2253efc850c4cf690516bbc07854eeb1077202ba] blk-mq: Move more code into blk_mq_direct_issue_request() testing commit 2253efc850c4cf690516bbc07854eeb1077202ba with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 2253efc850c4cf690516bbc07854eeb1077202ba Bisecting: 17 revisions left to test after this (roughly 4 steps) [f0d33ab76cfcd696328c1330e2462b5d62e74f00] dm: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code testing commit f0d33ab76cfcd696328c1330e2462b5d62e74f00 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip f0d33ab76cfcd696328c1330e2462b5d62e74f00 Bisecting: 17 revisions left to test after this (roughly 4 steps) [70fd76140a6cb63262bd47b68d57b42e889c10ee] block,fs: use REQ_* flags directly testing commit 70fd76140a6cb63262bd47b68d57b42e889c10ee with gcc (GCC) 5.5.0 run #0: boot failed: can't ssh into the instance run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 70fd76140a6cb63262bd47b68d57b42e889c10ee Bisecting: 17 revisions left to test after this (roughly 4 steps) [13edd5e7315a26b448c5f7f33fc7721b1e0c17ef] writeback: mark background writeback as such testing commit 13edd5e7315a26b448c5f7f33fc7721b1e0c17ef with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 13edd5e7315a26b448c5f7f33fc7721b1e0c17ef Bisecting: 17 revisions left to test after this (roughly 4 steps) [180b0ae77d49dd63183b18609f3601430582c403] skd: use pci_alloc_irq_vectors testing commit 180b0ae77d49dd63183b18609f3601430582c403 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 180b0ae77d49dd63183b18609f3601430582c403 Bisecting: 17 revisions left to test after this (roughly 4 steps) [2cefe4dbaadf83b236caab46705b4b5a4958e3b6] block: add bio_iov_iter_get_pages() testing commit 2cefe4dbaadf83b236caab46705b4b5a4958e3b6 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in corrupted run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 2cefe4dbaadf83b236caab46705b4b5a4958e3b6 Bisecting: 17 revisions left to test after this (roughly 4 steps) [d38499530e5f170d30f32d3841fade204e63081d] fs: decouple READ and WRITE from the block layer ops testing commit d38499530e5f170d30f32d3841fade204e63081d with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in corrupted run #8: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat run #9: boot failed: INFO: task hung in get_request # git bisect skip d38499530e5f170d30f32d3841fade204e63081d Bisecting: 17 revisions left to test after this (roughly 4 steps) [bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4] blk-mq: Do not invoke .queue_rq() for a stopped queue testing commit bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 Bisecting: 17 revisions left to test after this (roughly 4 steps) [c02ebfdddbafa9a6a0f52fbd715e6bfa229af9d3] blk-mq: Always schedule hctx->next_cpu testing commit c02ebfdddbafa9a6a0f52fbd715e6bfa229af9d3 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in corrupted # git bisect skip c02ebfdddbafa9a6a0f52fbd715e6bfa229af9d3 Bisecting: 17 revisions left to test after this (roughly 4 steps) [6a83e74d214a47a1371cd2e6a783264fcba7d428] blk-mq: Introduce blk_mq_quiesce_queue() testing commit 6a83e74d214a47a1371cd2e6a783264fcba7d428 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: KASAN: slab-out-of-bounds Read in KSTK_ESP run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 6a83e74d214a47a1371cd2e6a783264fcba7d428 Bisecting: 17 revisions left to test after this (roughly 4 steps) [1e3914d4cf4e14653b7917b0e965217465cb7a9c] block, fs: move submit_bio to bio.h testing commit 1e3914d4cf4e14653b7917b0e965217465cb7a9c with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 1e3914d4cf4e14653b7917b0e965217465cb7a9c Bisecting: 17 revisions left to test after this (roughly 4 steps) [9b7dd572cc439fa92e120290eb74d0295567c5a0] blk-mq: Remove blk_mq_cancel_requeue_work() testing commit 9b7dd572cc439fa92e120290eb74d0295567c5a0 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: KASAN: slab-out-of-bounds Read in KSTK_ESP run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 9b7dd572cc439fa92e120290eb74d0295567c5a0 Bisecting: 17 revisions left to test after this (roughly 4 steps) [d278d4a8892f13b6a9eb6102b356402f0e062324] block: add code to track actual device queue depth testing commit d278d4a8892f13b6a9eb6102b356402f0e062324 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip d278d4a8892f13b6a9eb6102b356402f0e062324 Bisecting: 17 revisions left to test after this (roughly 4 steps) [7637241e651ec36e409412869f986dd5f097735f] writeback: add wbc_to_write_flags() testing commit 7637241e651ec36e409412869f986dd5f097735f with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 7637241e651ec36e409412869f986dd5f097735f Bisecting: 17 revisions left to test after this (roughly 4 steps) [2f8b544477e627a42e66902e948d87f86554aeca] block,fs: untangle fs.h and blk_types.h testing commit 2f8b544477e627a42e66902e948d87f86554aeca with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 2f8b544477e627a42e66902e948d87f86554aeca Bisecting: 17 revisions left to test after this (roughly 4 steps) [52d7f1b5c2f33b5d34dc2b6af5175fb6a44999f6] blk-mq: Avoid that requeueing starts stopped queues testing commit 52d7f1b5c2f33b5d34dc2b6af5175fb6a44999f6 with gcc (GCC) 5.5.0 run #0: boot failed: failed to get create image operation operation-1561395582842-58c14bd11b866-b1a269cc-432e7473: googleapi: Error 500: Backend Error, backendError run #1: boot failed: failed to get create image operation operation-1561395580842-58c14bcf333a8-64e64382-94e24cc7: googleapi: Error 500: Backend Error, backendError run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip 52d7f1b5c2f33b5d34dc2b6af5175fb6a44999f6 Bisecting: 17 revisions left to test after this (roughly 4 steps) [fe8ecc86fa83e6dca25b055651811dff8d80bfed] arm, arm64: don't include blk_types.h in testing commit fe8ecc86fa83e6dca25b055651811dff8d80bfed with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in corrupted run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in corrupted # git bisect skip fe8ecc86fa83e6dca25b055651811dff8d80bfed Bisecting: 17 revisions left to test after this (roughly 4 steps) [a6eaa8849f92a40f8894d6d0dcab2c16243aaf20] nvme: Use BLK_MQ_S_STOPPED instead of QUEUE_FLAG_STOPPED in blk-mq code testing commit a6eaa8849f92a40f8894d6d0dcab2c16243aaf20 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip a6eaa8849f92a40f8894d6d0dcab2c16243aaf20 Bisecting: 17 revisions left to test after this (roughly 4 steps) [feebd5687257750bb75eaf5188b93756994b8c41] pktcdvd: don't scribble over the bvec array testing commit feebd5687257750bb75eaf5188b93756994b8c41 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip feebd5687257750bb75eaf5188b93756994b8c41 Bisecting: 17 revisions left to test after this (roughly 4 steps) [46f3cc176210b2db5db89d9c0e62796cad7e3cdc] block: drop q argument from bsg_validate_sgv4_hdr testing commit 46f3cc176210b2db5db89d9c0e62796cad7e3cdc with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 46f3cc176210b2db5db89d9c0e62796cad7e3cdc Bisecting: 17 revisions left to test after this (roughly 4 steps) [600271d9000027c013c01be87cbb90a5a18c5c3f] blk-mq: immediately dispatch big size request testing commit 600271d9000027c013c01be87cbb90a5a18c5c3f with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in get_request run #7: boot failed: INFO: task hung in get_request run #8: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat run #9: boot failed: INFO: task hung in get_request # git bisect skip 600271d9000027c013c01be87cbb90a5a18c5c3f Bisecting: 17 revisions left to test after this (roughly 4 steps) [be297968da22cf40c9c419df51e71ba8856a2ec2] mm: only include blk_types in swap.h if CONFIG_SWAP is enabled testing commit be297968da22cf40c9c419df51e71ba8856a2ec2 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip be297968da22cf40c9c419df51e71ba8856a2ec2 Bisecting: 17 revisions left to test after this (roughly 4 steps) [a2b809672ee6fcb4d5756ea815725b3dbaea654e] block: replace REQ_NOIDLE with REQ_IDLE testing commit a2b809672ee6fcb4d5756ea815725b3dbaea654e with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip a2b809672ee6fcb4d5756ea815725b3dbaea654e Bisecting: 17 revisions left to test after this (roughly 4 steps) [50d24c34403c62ad29e8b6db559d491bae20b4b7] block: immediately dispatch big size request testing commit 50d24c34403c62ad29e8b6db559d491bae20b4b7 with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 50d24c34403c62ad29e8b6db559d491bae20b4b7 Bisecting: 17 revisions left to test after this (roughly 4 steps) [8e1de26cd5db192b52819f5ee97bab308964f3ab] skd_main: use %*ph to dump small buffers testing commit 8e1de26cd5db192b52819f5ee97bab308964f3ab with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: INFO: task hung in corrupted run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: KASAN: slab-out-of-bounds Read in do_task_stat # git bisect skip 8e1de26cd5db192b52819f5ee97bab308964f3ab Bisecting: 17 revisions left to test after this (roughly 4 steps) [9f08217120568afdfb59973a89a675e649c0096d] ceph: don't include blk_types.h in messenger.h testing commit 9f08217120568afdfb59973a89a675e649c0096d with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip 9f08217120568afdfb59973a89a675e649c0096d Bisecting: 17 revisions left to test after this (roughly 4 steps) [b57d74aff9ab92fbfb7c197c384d1adfa2827b2e] writeback: track if we're sleeping on progress in balance_dirty_pages() testing commit b57d74aff9ab92fbfb7c197c384d1adfa2827b2e with gcc (GCC) 5.5.0 all runs: boot failed: INFO: task hung in get_request # git bisect skip b57d74aff9ab92fbfb7c197c384d1adfa2827b2e Bisecting: 17 revisions left to test after this (roughly 4 steps) [b685d3d65ac791406e0dfd8779cc9b3707fea5a3] block: treat REQ_FUA and REQ_PREFLUSH as synchronous testing commit b685d3d65ac791406e0dfd8779cc9b3707fea5a3 with gcc (GCC) 5.5.0 run #0: boot failed: INFO: task hung in get_request run #1: boot failed: INFO: task hung in get_request run #2: boot failed: INFO: task hung in get_request run #3: boot failed: INFO: task hung in get_request run #4: boot failed: INFO: task hung in get_request run #5: boot failed: INFO: task hung in get_request run #6: boot failed: KASAN: use-after-free Read in KSTK_ESP run #7: boot failed: INFO: task hung in get_request run #8: boot failed: INFO: task hung in get_request run #9: boot failed: INFO: task hung in get_request # git bisect skip b685d3d65ac791406e0dfd8779cc9b3707fea5a3 There are only 'skip'ped commits left to test. The first bad commit could be any of: 2253efc850c4cf690516bbc07854eeb1077202ba 52d7f1b5c2f33b5d34dc2b6af5175fb6a44999f6 fd00144301d64f1742541a3c5e64cd1c51f39c55 5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 9b7dd572cc439fa92e120290eb74d0295567c5a0 6a83e74d214a47a1371cd2e6a783264fcba7d428 bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 2b053aca76b48e681be57b34ca3a8c2c10b275c5 2cefe4dbaadf83b236caab46705b4b5a4958e3b6 13edd5e7315a26b448c5f7f33fc7721b1e0c17ef f0d33ab76cfcd696328c1330e2462b5d62e74f00 7637241e651ec36e409412869f986dd5f097735f 7b17c2f7292ba1f3f98dae3f7077f9e569653276 1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f 3174dd33fa8316d29f238f093291ca9bb25e6f58 7281b4526cefc898d180850b54d1369f38c6b202 a6eaa8849f92a40f8894d6d0dcab2c16243aaf20 46f3cc176210b2db5db89d9c0e62796cad7e3cdc be297968da22cf40c9c419df51e71ba8856a2ec2 50d24c34403c62ad29e8b6db559d491bae20b4b7 9f08217120568afdfb59973a89a675e649c0096d 600271d9000027c013c01be87cbb90a5a18c5c3f fe8ecc86fa83e6dca25b055651811dff8d80bfed 2f8b544477e627a42e66902e948d87f86554aeca d278d4a8892f13b6a9eb6102b356402f0e062324 1e3914d4cf4e14653b7917b0e965217465cb7a9c c02ebfdddbafa9a6a0f52fbd715e6bfa229af9d3 d38499530e5f170d30f32d3841fade204e63081d feebd5687257750bb75eaf5188b93756994b8c41 180b0ae77d49dd63183b18609f3601430582c403 70fd76140a6cb63262bd47b68d57b42e889c10ee 8e1de26cd5db192b52819f5ee97bab308964f3ab a2b809672ee6fcb4d5756ea815725b3dbaea654e b57d74aff9ab92fbfb7c197c384d1adfa2827b2e b685d3d65ac791406e0dfd8779cc9b3707fea5a3 ae5b2ec8ad5e017126cd4552220f25ce8a6b92e9 We cannot bisect more! revisions tested: 68, total time: 18h43m28.667564925s (build: 4h49m38.545460409s, test: 13h38m33.471431055s) bisection is inconclusive, the first bad commit could be any of: 2253efc850c4cf690516bbc07854eeb1077202ba 52d7f1b5c2f33b5d34dc2b6af5175fb6a44999f6 fd00144301d64f1742541a3c5e64cd1c51f39c55 5d1b25c1ecabb37f8eb58c8e9dd74f77f703e5d9 9b7dd572cc439fa92e120290eb74d0295567c5a0 6a83e74d214a47a1371cd2e6a783264fcba7d428 bc27c01b5c46d3bfec42c96537c7a3fae0bb2cc4 2b053aca76b48e681be57b34ca3a8c2c10b275c5 2cefe4dbaadf83b236caab46705b4b5a4958e3b6 13edd5e7315a26b448c5f7f33fc7721b1e0c17ef f0d33ab76cfcd696328c1330e2462b5d62e74f00 7637241e651ec36e409412869f986dd5f097735f 7b17c2f7292ba1f3f98dae3f7077f9e569653276 1d796d6a9641fbfcd90fcfaf6fb4894a13d0304f 3174dd33fa8316d29f238f093291ca9bb25e6f58 7281b4526cefc898d180850b54d1369f38c6b202 a6eaa8849f92a40f8894d6d0dcab2c16243aaf20 46f3cc176210b2db5db89d9c0e62796cad7e3cdc be297968da22cf40c9c419df51e71ba8856a2ec2 50d24c34403c62ad29e8b6db559d491bae20b4b7 9f08217120568afdfb59973a89a675e649c0096d 600271d9000027c013c01be87cbb90a5a18c5c3f fe8ecc86fa83e6dca25b055651811dff8d80bfed 2f8b544477e627a42e66902e948d87f86554aeca d278d4a8892f13b6a9eb6102b356402f0e062324 1e3914d4cf4e14653b7917b0e965217465cb7a9c c02ebfdddbafa9a6a0f52fbd715e6bfa229af9d3 d38499530e5f170d30f32d3841fade204e63081d feebd5687257750bb75eaf5188b93756994b8c41 180b0ae77d49dd63183b18609f3601430582c403 70fd76140a6cb63262bd47b68d57b42e889c10ee 8e1de26cd5db192b52819f5ee97bab308964f3ab a2b809672ee6fcb4d5756ea815725b3dbaea654e b57d74aff9ab92fbfb7c197c384d1adfa2827b2e b685d3d65ac791406e0dfd8779cc9b3707fea5a3 ae5b2ec8ad5e017126cd4552220f25ce8a6b92e9