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 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 sys_sendfile64 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 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 v5.1 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 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 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 sys_sendfile64 testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 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 sys_sendfile64 run #4: crashed: INFO: rcu detected stall in sys_sendfile64 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 sys_sendfile64 run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter 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 sys_sendfile64 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 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 corrupted 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 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 v4.18 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 ext4_file_write_iter run #2: crashed: INFO: rcu detected stall in ext4_file_write_iter 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 sys_sendfile64 testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 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 corrupted run #4: crashed: INFO: rcu detected stall in sys_sendfile64 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 corrupted 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 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 sendfile64 run #4: crashed: INFO: rcu detected stall in sendfile64 run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter run #6: crashed: INFO: rcu detected stall in corrupted run #7: crashed: INFO: rcu detected stall in ext4_file_write_iter run #8: crashed: INFO: rcu detected stall in sendfile64 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 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 ext4_file_write_iter run #4: crashed: INFO: rcu detected stall in corrupted run #5: crashed: INFO: rcu detected stall in ext4_file_write_iter 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 corrupted run #9: crashed: INFO: rcu detected stall in ext4_file_write_iter 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 ext4_file_write_iter 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 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 v4.13 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 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 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 ext4_file_write_iter run #9: crashed: INFO: rcu detected stall in corrupted testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c 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 corrupted run #2: crashed: INFO: rcu detected stall in corrupted 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 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 ext4_file_write_iter run #2: crashed: INFO: rcu detected stall in corrupted 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 ext4_file_write_iter 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 v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 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: 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-executor990482663" "root@10.128.0.67:./syz-executor990482663"]: 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-executor216456474" "root@10.128.15.205:./syz-executor216456474"]: 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-executor009762225" "root@10.128.15.200:./syz-executor009762225"]: exit status 1 ssh: connect to host 10.128.15.200 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-executor994225500" "root@10.128.15.206:./syz-executor994225500"]: exit status 1 Connection timed out during banner exchange 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-executor725134091" "root@10.128.10.61:./syz-executor725134091"]: 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-executor062433006" "root@10.128.15.211:./syz-executor062433006"]: 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-executor208047471" "root@10.128.0.125:./syz-executor208047471"]: 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-executor602329592" "root@10.128.10.45:./syz-executor602329592"]: exit status 1 Connection timed out during banner exchange lost connection 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 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-executor660042412" "root@10.128.15.201:./syz-executor660042412"]: 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-executor920693950" "root@10.128.0.254:./syz-executor920693950"]: 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-executor765371141" "root@10.128.15.200:./syz-executor765371141"]: exit status 1 ssh: connect to host 10.128.15.200 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-executor910776703" "root@10.128.15.202:./syz-executor910776703"]: 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-executor392968201" "root@10.128.15.203:./syz-executor392968201"]: 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-executor277896660" "root@10.128.1.6:./syz-executor277896660"]: exit status 1 ssh: connect to host 10.128.1.6 port 22: Connection timed out 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-executor808612131" "root@10.128.15.205:./syz-executor808612131"]: exit status 1 Connection timed out during banner exchange lost connection # git bisect skip ab1effc09519f3bb4b84dd6d8276cedf07b17a1b Bisecting: 7099 revisions left to test after this (roughly 13 steps) [ae7871be189cb41184f1e05742b4a99e2c59774d] swiotlb: Convert swiotlb_force from int to enum testing commit ae7871be189cb41184f1e05742b4a99e2c59774d with gcc (GCC) 5.5.0 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@10.128.1.48:./syz-fuzzer"] Warning: Permanently added '10.128.1.48' (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: 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 ae7871be189cb41184f1e05742b4a99e2c59774d Bisecting: 7099 revisions left to test after this (roughly 13 steps) [4a2ce27bb5f291c38d8e49ef16899828289e4d3d] i40e: properly cleanup on allocation failure in i40e_sync_vsi_filters testing commit 4a2ce27bb5f291c38d8e49ef16899828289e4d3d with gcc (GCC) 5.5.0 run #0: crashed: BUG: soft lockup 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-executor126824008" "root@10.128.0.30:./syz-executor126824008"]: 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-executor808254727" "root@10.128.0.216:./syz-executor808254727"]: 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-executor362597562" "root@10.128.0.217:./syz-executor362597562"]: exit status 1 ssh: connect to host 10.128.0.217 port 22: Connection timed out 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-executor380104188" "root@10.128.0.220:./syz-executor380104188"]: exit status 1 ssh: connect to host 10.128.0.220 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-executor679095083" "root@10.128.0.206:./syz-executor679095083"]: exit status 1 Connection timed out during banner exchange lost connection run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 4a2ce27bb5f291c38d8e49ef16899828289e4d3d Bisecting: 181 revisions left to test after this (roughly 8 steps) [4fe77d82ef80c77031c9c6f8554cd0dee2aa423a] skbedit: allow the user to specify bitmask for mark testing commit 4fe77d82ef80c77031c9c6f8554cd0dee2aa423a 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-executor381513634" "root@10.128.10.47:./syz-executor381513634"]: 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-executor577946404" "root@10.128.10.63:./syz-executor577946404"]: 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-executor142568600" "root@10.128.10.57:./syz-executor142568600"]: 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-executor227848471" "root@10.128.10.58:./syz-executor227848471"]: exit status 1 Connection timed out during banner exchange lost connection run #4: OK 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-executor201491338" "root@10.128.0.196:./syz-executor201491338"]: 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-executor185613153" "root@10.128.10.49:./syz-executor185613153"]: exit status 1 ssh: connect to host 10.128.10.49 port 22: Connection timed out lost connection # git bisect good 4fe77d82ef80c77031c9c6f8554cd0dee2aa423a Bisecting: 72 revisions left to test after this (roughly 7 steps) [32ab0a38f0bd554cc45203ff4fdb6b0fdea6f025] Merge tag 'mac80211-next-for-davem-2016-10-28' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next testing commit 32ab0a38f0bd554cc45203ff4fdb6b0fdea6f025 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-executor116589662" "root@10.128.10.63:./syz-executor116589662"]: 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-executor992776229" "root@10.128.0.33:./syz-executor992776229"]: 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-executor983443776" "root@10.128.0.193:./syz-executor983443776"]: 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-executor318356895" "root@10.128.0.40:./syz-executor318356895"]: 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-executor333607538" "root@10.128.15.213:./syz-executor333607538"]: 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-executor779393833" "root@10.128.1.7:./syz-executor779393833"]: exit status 1 ssh: connect to host 10.128.1.7 port 22: Connection timed out 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-executor449030467" "root@10.128.15.214:./syz-executor449030467"]: exit status 1 Connection timed out during banner exchange lost connection run #7: OK 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-executor566770118" "root@10.128.0.217:./syz-executor566770118"]: exit status 1 Connection timed out during banner exchange lost connection run #9: OK # git bisect skip 32ab0a38f0bd554cc45203ff4fdb6b0fdea6f025 Bisecting: 72 revisions left to test after this (roughly 7 steps) [af1fee98219992ba2c12441a447719652ed7e983] net: phy: Add support for Microsemi VSC 8530/40 Fast Ethernet PHY testing commit af1fee98219992ba2c12441a447719652ed7e983 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-executor542691048" "root@10.128.0.193:./syz-executor542691048"]: 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-executor048895473" "root@10.128.0.81:./syz-executor048895473"]: 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-executor928860206" "root@10.128.0.158:./syz-executor928860206"]: 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-executor505181621" "root@10.128.0.33:./syz-executor505181621"]: 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-executor574519184" "root@10.128.0.31:./syz-executor574519184"]: exit status 1 Connection timed out during banner exchange lost connection 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-executor694427567" "root@10.128.0.198:./syz-executor694427567"]: exit status 1 Connection timed out during banner exchange lost connection run #7: OK run #8: OK run #9: OK # git bisect good af1fee98219992ba2c12441a447719652ed7e983 Bisecting: 34 revisions left to test after this (roughly 5 steps) [0a6ce1e3c1ab71c7b889fae3359c9c3ff3a43aab] Merge tag 'shared-for-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma testing commit 0a6ce1e3c1ab71c7b889fae3359c9c3ff3a43aab 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-executor725649337" "root@10.128.15.195:./syz-executor725649337"]: 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-executor543322564" "root@10.128.15.197:./syz-executor543322564"]: exit status 1 ssh: connect to host 10.128.15.197 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-executor129631315" "root@10.128.1.37:./syz-executor129631315"]: 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-executor090554774" "root@10.128.15.214:./syz-executor090554774"]: 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-executor004461368" "root@10.128.15.216:./syz-executor004461368"]: exit status 1 ssh: connect to host 10.128.15.216 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-executor908520247" "root@10.128.10.61:./syz-executor908520247"]: 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-executor362121514" "root@10.128.15.201:./syz-executor362121514"]: exit status 1 Connection timed out during banner exchange 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-executor156207745" "root@10.128.10.63:./syz-executor156207745"]: exit status 1 Connection timed out during banner exchange lost connection run #8: OK run #9: OK # git bisect skip 0a6ce1e3c1ab71c7b889fae3359c9c3ff3a43aab Bisecting: 34 revisions left to test after this (roughly 5 steps) [0c81ea5db25986fb2a704105db454a790c59709c] mlxsw: core: Add port type (Eth/IB) set API testing commit 0c81ea5db25986fb2a704105db454a790c59709c with gcc (GCC) 5.5.0 run #0: crashed: BUG: soft lockup in ext4_file_write_iter 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-executor188568574" "root@10.128.10.54:./syz-executor188568574"]: 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-executor002145248" "root@10.128.0.212:./syz-executor002145248"]: 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-executor463076287" "root@10.128.15.205:./syz-executor463076287"]: exit status 1 ssh: connect to host 10.128.15.205 port 22: Connection timed out 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-executor009312274" "root@10.128.15.207:./syz-executor009312274"]: 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-executor989812809" "root@10.128.0.202:./syz-executor989812809"]: 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-executor545190164" "root@10.128.10.61:./syz-executor545190164"]: exit status 1 ssh: connect to host 10.128.10.61 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-executor700665699" "root@10.128.15.199:./syz-executor700665699"]: exit status 1 Connection timed out during banner exchange lost connection run #8: OK run #9: OK # git bisect bad 0c81ea5db25986fb2a704105db454a790c59709c Bisecting: 7 revisions left to test after this (roughly 3 steps) [e50e789ce178b6ae7c18b3e90884123398bab5f3] mlxsw: switchx2: Add support for physical port names testing commit e50e789ce178b6ae7c18b3e90884123398bab5f3 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-executor381796232" "root@10.128.1.54:./syz-executor381796232"]: exit status 1 ssh: connect to host 10.128.1.54 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-executor256054087" "root@10.128.10.8:./syz-executor256054087"]: 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-executor983364412" "root@10.128.10.63:./syz-executor983364412"]: 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-executor524480363" "root@10.128.1.46:./syz-executor524480363"]: exit status 1 Connection timed out during banner exchange lost connection 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-executor654329392" "root@10.128.10.61:./syz-executor654329392"]: exit status 1 Connection timed out during banner exchange lost connection run #7: OK run #8: OK run #9: OK # git bisect good e50e789ce178b6ae7c18b3e90884123398bab5f3 Bisecting: 3 revisions left to test after this (roughly 2 steps) [7136793e4a44651b273a457e31f00a51751dd123] mlxsw: reg: Add local-port to Infiniband port mapping testing commit 7136793e4a44651b273a457e31f00a51751dd123 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-executor992587481" "root@10.128.10.43:./syz-executor992587481"]: 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-executor340291684" "root@10.128.0.229:./syz-executor340291684"]: 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-executor267123510" "root@10.128.0.80:./syz-executor267123510"]: 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-executor788570397" "root@10.128.10.48:./syz-executor788570397"]: 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-executor817240024" "root@10.128.1.30:./syz-executor817240024"]: exit status 1 ssh: connect to host 10.128.1.30 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-executor746496343" "root@10.128.0.202:./syz-executor746496343"]: exit status 1 Connection timed out during banner exchange lost connection run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 7136793e4a44651b273a457e31f00a51751dd123 Bisecting: 1 revision left to test after this (roughly 1 step) [c68b71cb2fa98e2fa1e177278b349cf2653d8d83] mlxsw: switchx2: Add Infiniband switch partition testing commit c68b71cb2fa98e2fa1e177278b349cf2653d8d83 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-executor624329118" "root@10.128.0.238:./syz-executor624329118"]: 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-executor360637541" "root@10.128.15.205:./syz-executor360637541"]: 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-executor026279040" "root@10.128.15.192:./syz-executor026279040"]: 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-executor560051679" "root@10.128.0.128:./syz-executor560051679"]: exit status 1 ssh: connect to host 10.128.0.128 port 22: Connection timed out 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-executor474905961" "root@10.128.0.229:./syz-executor474905961"]: 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 c68b71cb2fa98e2fa1e177278b349cf2653d8d83 Bisecting: 0 revisions left to test after this (roughly 0 steps) [d808c7e490350c51a883dec65c4f47e9c5cad79f] mlxsw: core: Add "eth" prefix to mlxsw_core_port_set testing commit d808c7e490350c51a883dec65c4f47e9c5cad79f 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-executor041253786" "root@10.128.0.216:./syz-executor041253786"]: 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-executor077952561" "root@10.128.0.229:./syz-executor077952561"]: exit status 1 ssh: connect to host 10.128.0.229 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-executor561628661" "root@10.128.0.40:./syz-executor561628661"]: 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-executor292775120" "root@10.128.10.61:./syz-executor292775120"]: 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 d808c7e490350c51a883dec65c4f47e9c5cad79f 0c81ea5db25986fb2a704105db454a790c59709c is the first bad commit commit 0c81ea5db25986fb2a704105db454a790c59709c Author: Elad Raz Date: Fri Oct 28 21:35:58 2016 +0200 mlxsw: core: Add port type (Eth/IB) set API Add "port_type_set" API to mlxsw core. The core layer send the change type callback to the port along with it's private information. Signed-off-by: Elad Raz Reviewed-by: Jiri Pirko Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller :040000 040000 4b09964d7323df7d4121ab51fbe27011459205de 6e01acff89b6cdf3662fa7a49405743ee6d76f0e M drivers revisions tested: 28, total time: 6h46m26.056031834s (build: 2h9m13.771509865s, test: 4h29m35.860016262s) first bad commit: 0c81ea5db25986fb2a704105db454a790c59709c mlxsw: core: Add port type (Eth/IB) set API cc: ["davem@davemloft.net" "eladr@mellanox.com" "idosch@mellanox.com" "jiri@mellanox.com" "linux-kernel@vger.kernel.org" "netdev@vger.kernel.org"] crash: BUG: soft lockup in ext4_file_write_iter IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready 8021q: adding VLAN 0 to HW filter on device batadv0 8021q: adding VLAN 0 to HW filter on device batadv0 sched: RT throttling activated NMI watchdog: BUG: soft lockup - CPU#1 stuck for 114s! [syz-executor.5:6573] Modules linked in: irq event stamp: 15448324 hardirqs last enabled at (15448323): [ 285.220986] [] seqcount_lockdep_reader_access include/linux/seqlock.h:82 [inline] hardirqs last enabled at (15448323): [ 285.220986] [] read_seqcount_begin include/linux/seqlock.h:163 [inline] hardirqs last enabled at (15448323): [ 285.220986] [] current_kernel_time64+0xc3/0x1a0 kernel/time/timekeeping.c:2170 hardirqs last disabled at (15448324): [ 285.231980] [] apic_timer_interrupt+0x87/0xa0 arch/x86/entry/entry_64.S:709 softirqs last enabled at (15444978): [ 285.243260] [] __do_softirq+0x451/0x9d8 kernel/softirq.c:310 softirqs last disabled at (15444971): [ 285.254425] [] invoke_softirq kernel/softirq.c:364 [inline] softirqs last disabled at (15444971): [ 285.254425] [] irq_exit+0x19b/0x1d0 kernel/softirq.c:405 CPU: 1 PID: 6573 Comm: syz-executor.5 Not tainted 4.9.0-rc3+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff880125c14500 task.stack: ffff880126788000 RIP: 0010:[] [] __wake_up_bit+0x10/0xd0 kernel/sched/wait.c:453 RSP: 0018:ffff88012678f498 EFLAGS: 00000246 RAX: ffffffff86c0d540 RBX: ffffea00041e4a00 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffea00041e4a00 RDI: ffffffff86c0d540 RBP: ffff88012678f4a0 R08: ffff8801291cd540 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00041e4a00 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8801291cd330 FS: 00007f21a501c700(0000) GS:ffff88012c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000758080 CR3: 0000000126725000 CR4: 00000000001406e0 Stack: dffffc0000000000 ffff88012678f4c0 ffffffff8164725a ffffea00041e4a00 0000000000000001 ffff88012678f5c8 ffffffff81ab0b41 ffff8801d73a8780 0000000000000002 ffff8801291cd380 ffffffff86fd0d60 0000000000001c40 Call Trace: [] wake_up_page include/linux/pagemap.h:495 [inline] [] unlock_page+0x9a/0xd0 mm/filemap.c:867 [] ext4_da_write_begin+0x1d1/0xaa0 fs/ext4/inode.c:2923 [] generic_perform_write+0x238/0x4b0 mm/filemap.c:2730 [] __generic_file_write_iter+0x396/0x550 mm/filemap.c:2855 [] ext4_file_write_iter+0x1b0/0xdc0 fs/ext4/file.c:165 [] vfs_iter_write+0x2f6/0x620 fs/read_write.c:393 [] iter_file_splice_write+0x52c/0xbc0 fs/splice.c:771 [] do_splice_from fs/splice.c:873 [inline] [] direct_splice_actor+0x104/0x1c0 fs/splice.c:1040 [] splice_direct_to_actor+0x2a0/0x7a0 fs/splice.c:995 [] do_splice_direct+0x14e/0x260 fs/splice.c:1083 [] do_sendfile+0x4b5/0xe50 fs/read_write.c:1401 [] SYSC_sendfile64 fs/read_write.c:1456 [inline] [] SyS_sendfile64+0xb6/0x120 fs/read_write.c:1448 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Code: 00 eb b3 e8 13 5e 33 00 eb 89 e8 0c 5e 33 00 e9 60 ff ff ff 0f 1f 80 00 00 00 00 48 b9 00 00 00 00 00 fc ff df 55 48 89 e5 41 55 <49> 89 fd 48 8d 45 88 41 54 4c 8d 67 38 48 c1 e8 03 53 48 89 c3 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6574 Comm: syz-executor.3 Not tainted 4.9.0-rc3+ #1 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801220ca380 task.stack: ffff8801191a0000 RIP: 0010:[] c [] jhash2 include/linux/jhash.h:129 [inline] RIP: 0010:[] c [] hash_stack lib/stackdepot.c:161 [inline] RIP: 0010:[] c [] depot_save_stack+0x79/0x490 lib/stackdepot.c:216 RSP: 0018:ffff8801191a7680 EFLAGS: 00000202 RAX: 000000003fe9919e RBX: 00000000c559bcd1 RCX: 000000009aaf3a1e RDX: ffff8801191a7744 RSI: 00000000024080c0 RDI: ffff8801191a76d8 RBP: ffff8801191a76c8 R08: ffff8801191a7690 R09: 0000000000000003 R10: 00000000574c80ba R11: 000000002751a72f R12: ffff88012afe9500 R13: ffff8801191a76f0 R14: ffff88012afe9500 R15: 000000000000000c FS: 00007f1ffab09700(0000) GS:ffff88012c000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000758080 CR3: 000000011a37f000 CR4: 00000000001406f0 Stack: ffff8801220ca380c 0000000000000000c ffff8801191a7f48c 0000000000000000c 00000000024080c0c ffff88012afe9500c 00000000024080c0c ffff88012afe9500c ffff88012bc00500c ffff8801191a78f8c ffffffff81773615c 000000400000000cc Call Trace: [] save_stack+0xb5/0xd0 mm/kasan/kasan.c:501 [] set_track mm/kasan/kasan.c:507 [inline] [] kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:598 [] kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:537 [] slab_post_alloc_hook mm/slab.h:417 [inline] [] slab_alloc mm/slab.c:3407 [inline] [] __do_kmalloc mm/slab.c:3731 [inline] [] __kmalloc+0x172/0x770 mm/slab.c:3742 [] kmalloc_array include/linux/slab.h:582 [inline] [] kcalloc include/linux/slab.h:593 [inline] [] iter_file_splice_write+0x12e/0xbc0 fs/splice.c:714 [] do_splice_from fs/splice.c:873 [inline] [] direct_splice_actor+0x104/0x1c0 fs/splice.c:1040 [] splice_direct_to_actor+0x2a0/0x7a0 fs/splice.c:995 [] do_splice_direct+0x14e/0x260 fs/splice.c:1083 [] do_sendfile+0x4b5/0xe50 fs/read_write.c:1401 [] SYSC_sendfile64 fs/read_write.c:1456 [inline] [] SyS_sendfile64+0xb6/0x120 fs/read_write.c:1448 [] entry_SYSCALL_64_fastpath+0x23/0xc6 Code: c83 cc2 c0c c03 c42 cf8 c41 c29 cda c44 c03 c52 cf4 c41 c89 cdb c89 cd9 c41 cc1 cc3 c04 c01 cc1 c45 c31 cda c45 c89 cd3 c44 c29 cd0 c41 c01 cca c41 cc1 cc3 c06 c44 c31 cd8 c<41> c89 cc3 c29 cc1 c44 c01 cd0 c41 cc1 cc3 c08 c44 c31 cd9 c41 c89 ccb c41 c29 cca c