bisecting cause commit starting from a14d273ba15968495896a38b7b3399dba66d0270 building syzkaller on 6a81331a1d4c744da9204d02ec88d558f7eea9c9 testing commit a14d273ba15968495896a38b7b3399dba66d0270 with gcc (GCC) 10.2.1 20210217 kernel signature: ce6bf77db85b3a35e8a2581df87f896000050ffee686ed24c204860d7fdb696c run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor114845412" "root@10.128.0.102:./syz-executor114845412"]: exit status 1 ssh: connect to host 10.128.0.102 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" "/tmp/syz-executor416970995" "root@10.128.0.50:./syz-executor416970995"]: exit status 1 ssh: connect to host 10.128.0.50 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor908291510" "root@10.128.1.9:./syz-executor908291510"]: exit status 1 ssh: connect to host 10.128.1.9 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" "/tmp/syz-executor501722013" "root@10.128.1.51:./syz-executor501722013"]: exit status 1 ssh: connect to host 10.128.1.51 port 22: Connection timed out lost connection run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor435224152" "root@10.128.1.45:./syz-executor435224152"]: exit status 1 ssh: connect to host 10.128.1.45 port 22: Connection timed out lost connection run #10: crashed: kernel panic: Attempted to kill init! run #11: 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" "/tmp/syz-executor771761111" "root@10.128.1.23:./syz-executor771761111"]: exit status 1 ssh: connect to host 10.128.1.23 port 22: Connection timed out lost connection run #12: 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" "/tmp/syz-executor383393098" "root@10.128.1.107:./syz-executor383393098"]: exit status 1 ssh: connect to host 10.128.1.107 port 22: Connection timed out lost connection run #13: 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" "/tmp/syz-executor068710433" "root@10.128.1.100:./syz-executor068710433"]: exit status 1 ssh: connect to host 10.128.1.100 port 22: Connection timed out lost connection run #14: 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" "/tmp/syz-executor563268364" "root@10.128.0.173:./syz-executor563268364"]: exit status 1 ssh: connect to host 10.128.0.173 port 22: Connection timed out lost connection run #15: 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" "/tmp/syz-executor106643707" "root@10.128.0.224:./syz-executor106643707"]: exit status 1 ssh: connect to host 10.128.0.224 port 22: Connection timed out lost connection run #16: 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" "/tmp/syz-executor966455326" "root@10.128.1.13:./syz-executor966455326"]: exit status 1 ssh: connect to host 10.128.1.13 port 22: Connection timed out lost connection run #17: 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" "/tmp/syz-executor848796901" "root@10.128.10.25:./syz-executor848796901"]: exit status 1 ssh: connect to host 10.128.10.25 port 22: Connection timed out lost connection run #18: 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" "/tmp/syz-executor298620160" "root@10.128.0.164:./syz-executor298620160"]: exit status 1 ssh: connect to host 10.128.0.164 port 22: Connection timed out lost connection run #19: crashed: kernel panic: Attempted to kill init! testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: e99cd9f143ce9d9fcac692e506c1f42fd7bad007e669bcc2d658384620d3ab58 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor021210674" "root@10.128.1.25:./syz-executor021210674"]: exit status 1 ssh: connect to host 10.128.1.25 port 22: Connection timed out lost connection run #3: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor453904873" "root@10.128.1.122:./syz-executor453904873"]: exit status 1 ssh: connect to host 10.128.1.122 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" "/tmp/syz-executor570161204" "root@10.128.10.5:./syz-executor570161204"]: exit status 1 ssh: connect to host 10.128.10.5 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" "/tmp/syz-executor927531011" "root@10.128.10.7:./syz-executor927531011"]: exit status 1 ssh: connect to host 10.128.10.7 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" "/tmp/syz-executor395498374" "root@10.128.10.1:./syz-executor395498374"]: exit status 1 ssh: connect to host 10.128.10.1 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" "/tmp/syz-executor911658797" "root@10.128.10.13:./syz-executor911658797"]: exit status 1 ssh: connect to host 10.128.10.13 port 22: Connection timed out 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" "/tmp/syz-executor042327720" "root@10.128.1.127:./syz-executor042327720"]: exit status 1 ssh: connect to host 10.128.1.127 port 22: Connection timed out lost connection testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: a85323b0701dba111ac583b145ff31def09d195ee905600b53b701659a53318a run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor071032858" "root@10.128.10.13:./syz-executor071032858"]: exit status 1 ssh: connect to host 10.128.10.13 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" "/tmp/syz-executor827175089" "root@10.128.1.127:./syz-executor827175089"]: exit status 1 ssh: connect to host 10.128.1.127 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" "/tmp/syz-executor077941340" "root@10.128.10.7:./syz-executor077941340"]: exit status 1 ssh: connect to host 10.128.10.7 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" "/tmp/syz-executor288792587" "root@10.128.1.54:./syz-executor288792587"]: exit status 1 ssh: connect to host 10.128.1.54 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" "/tmp/syz-executor999578094" "root@10.128.10.3:./syz-executor999578094"]: exit status 1 ssh: connect to host 10.128.10.3 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" "/tmp/syz-executor863523957" "root@10.128.10.11:./syz-executor863523957"]: exit status 1 ssh: connect to host 10.128.10.11 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" "/tmp/syz-executor012683600" "root@10.128.10.16:./syz-executor012683600"]: exit status 1 ssh: connect to host 10.128.10.16 port 22: Connection timed out 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" "/tmp/syz-executor792968303" "root@10.128.10.18:./syz-executor792968303"]: exit status 1 ssh: connect to host 10.128.10.18 port 22: Connection timed out lost connection testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: 518fb1aeda7a24ee3d4efae5c88e23f29027cd3df6defd6a587437de3d25454c run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor469458041" "root@10.128.1.121:./syz-executor469458041"]: exit status 1 ssh: connect to host 10.128.1.121 port 22: Connection timed out lost connection run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor144266116" "root@10.128.10.1:./syz-executor144266116"]: exit status 1 ssh: connect to host 10.128.10.1 port 22: Connection timed out lost connection run #6: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor488653075" "root@10.128.1.125:./syz-executor488653075"]: exit status 1 ssh: connect to host 10.128.1.125 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" "/tmp/syz-executor496520022" "root@10.128.10.5:./syz-executor496520022"]: exit status 1 ssh: connect to host 10.128.10.5 port 22: Connection timed out 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" "/tmp/syz-executor871189693" "root@10.128.10.6:./syz-executor871189693"]: exit status 1 ssh: connect to host 10.128.10.6 port 22: Connection timed out lost connection testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: 3fd984bc16d47748b5999bb31f87b0aa7ef3d85d1c8c75dc2d70718fb8c8fd1c run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor598616567" "root@10.128.1.125:./syz-executor598616567"]: exit status 1 ssh: connect to host 10.128.1.125 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" "/tmp/syz-executor691288298" "root@10.128.1.23:./syz-executor691288298"]: exit status 1 ssh: connect to host 10.128.1.23 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" "/tmp/syz-executor519394625" "root@10.128.0.255:./syz-executor519394625"]: exit status 1 ssh: connect to host 10.128.0.255 port 22: Connection timed out lost connection run #5: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor795135916" "root@10.128.10.0:./syz-executor795135916"]: exit status 1 ssh: connect to host 10.128.10.0 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" "/tmp/syz-executor595985179" "root@10.128.10.2:./syz-executor595985179"]: exit status 1 ssh: connect to host 10.128.10.2 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" "/tmp/syz-executor712318910" "root@10.128.10.9:./syz-executor712318910"]: exit status 1 ssh: connect to host 10.128.10.9 port 22: Connection timed out lost connection run #9: crashed: kernel panic: Attempted to kill init! testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: 3ea098051d234c6402a881adaad943a392da5cd3d368c594f1a49fd42c6aee29 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor771726240" "root@10.128.1.35:./syz-executor771726240"]: exit status 1 ssh: connect to host 10.128.1.35 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" "/tmp/syz-executor174316671" "root@10.128.10.5:./syz-executor174316671"]: exit status 1 ssh: connect to host 10.128.10.5 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" "/tmp/syz-executor365084626" "root@10.128.0.136:./syz-executor365084626"]: exit status 1 ssh: connect to host 10.128.0.136 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" "/tmp/syz-executor873253129" "root@10.128.10.7:./syz-executor873253129"]: exit status 1 ssh: connect to host 10.128.10.7 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" "/tmp/syz-executor975534292" "root@10.128.10.16:./syz-executor975534292"]: exit status 1 ssh: connect to host 10.128.10.16 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" "/tmp/syz-executor485230115" "root@10.128.10.12:./syz-executor485230115"]: exit status 1 ssh: connect to host 10.128.10.12 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" "/tmp/syz-executor315627814" "root@10.128.0.213:./syz-executor315627814"]: exit status 1 ssh: connect to host 10.128.0.213 port 22: Connection timed out 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" "/tmp/syz-executor619955789" "root@10.128.10.17:./syz-executor619955789"]: exit status 1 ssh: connect to host 10.128.10.17 port 22: Connection timed out lost connection testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: b4075d9dcea9f7c6d6766bd389db2270bfa11bf026e4af423b09b01ea5327549 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! run #2: crashed: kernel panic: Attempted to kill init! run #3: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor279956487" "root@10.128.1.63:./syz-executor279956487"]: exit status 1 ssh: connect to host 10.128.1.63 port 22: Connection timed out lost connection run #5: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor223746490" "root@10.128.10.6:./syz-executor223746490"]: exit status 1 ssh: connect to host 10.128.10.6 port 22: Connection timed out lost connection run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor141033425" "root@10.128.0.179:./syz-executor141033425"]: exit status 1 ssh: connect to host 10.128.0.179 port 22: Connection timed out lost connection testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 with gcc (GCC) 8.4.1 20210217 kernel signature: 81c44ef761e6867be1ff2a49dde4c8255fe5d0722ba73c8f459a28b9d950fdb6 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! run #2: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor844786219" "root@10.128.0.66:./syz-executor844786219"]: exit status 1 ssh: connect to host 10.128.0.66 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor631842702" "root@10.128.0.250:./syz-executor631842702"]: exit status 1 ssh: connect to host 10.128.0.250 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" "/tmp/syz-executor129778581" "root@10.128.1.3:./syz-executor129778581"]: exit status 1 ssh: connect to host 10.128.1.3 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" "/tmp/syz-executor865824240" "root@10.128.1.29:./syz-executor865824240"]: exit status 1 ssh: connect to host 10.128.1.29 port 22: Connection timed out lost connection run #9: OK testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 with gcc (GCC) 8.4.1 20210217 kernel signature: 881f8ad892b8181fe1602f9cdee9164e4e8eb24bc5d638c2331a8541ac1c71d7 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! run #2: crashed: kernel panic: Attempted to kill init! run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor083261337" "root@10.128.10.14:./syz-executor083261337"]: exit status 1 ssh: connect to host 10.128.10.14 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" "/tmp/syz-executor586166820" "root@10.128.10.24:./syz-executor586166820"]: exit status 1 ssh: connect to host 10.128.10.24 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" "/tmp/syz-executor158865715" "root@10.128.1.77:./syz-executor158865715"]: exit status 1 ssh: connect to host 10.128.1.77 port 22: Connection timed out 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" "/tmp/syz-executor126717174" "root@10.128.10.17:./syz-executor126717174"]: exit status 1 ssh: connect to host 10.128.10.17 port 22: Connection timed out lost connection testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 with gcc (GCC) 8.4.1 20210217 kernel signature: 2584b0db803a21bdf3866ef8a4b732382187f7d356ca8ff1b338563cbd71289a 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" "/tmp/syz-executor305831832" "root@10.128.1.96:./syz-executor305831832"]: exit status 1 ssh: connect to host 10.128.1.96 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" "/tmp/syz-executor450338327" "root@10.128.1.83:./syz-executor450338327"]: exit status 1 ssh: connect to host 10.128.1.83 port 22: Connection timed out lost connection run #2: crashed: kernel panic: Attempted to kill init! run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.4.1 20210217 kernel signature: 728859189dfb817228be6254600702b5799e22b13e34b548277f205f8dbc98aa all runs: OK # git bisect start 4d856f72c10ecb060868ed10ff1b1453943fc6c8 0ecfebd2b52404ae0c54a878c872bb93363ada36 Bisecting: 7848 revisions left to test after this (roughly 13 steps) [43c95d3694cc448fdf50bd53b7ff3a5bb4655883] Merge tag 'pinctrl-v5.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl testing commit 43c95d3694cc448fdf50bd53b7ff3a5bb4655883 with gcc (GCC) 8.4.1 20210217 kernel signature: bb6b5aab077bbec7564723cc6eea6df0fadbc3c8de35be59269d4434b1321c3b 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" "/tmp/syz-executor632772294" "root@10.128.0.251:./syz-executor632772294"]: exit status 1 ssh: connect to host 10.128.0.251 port 22: Connection timed out lost connection run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor587676648" "root@10.128.1.87:./syz-executor587676648"]: exit status 1 ssh: connect to host 10.128.1.87 port 22: Connection refused 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" "/tmp/syz-executor896641901" "root@10.128.10.14:./syz-executor896641901"]: exit status 1 ssh: connect to host 10.128.10.14 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad 43c95d3694cc448fdf50bd53b7ff3a5bb4655883 Bisecting: 4619 revisions left to test after this (roughly 12 steps) [8f6ccf6159aed1f04c6d179f61f6fb2691261e84] Merge tag 'clone3-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux testing commit 8f6ccf6159aed1f04c6d179f61f6fb2691261e84 with gcc (GCC) 8.4.1 20210217 kernel signature: 1c189585f830bd5e8bf8c7a07b91ece09d48c0ffa111a643bb62755c096bcc54 all runs: OK # git bisect good 8f6ccf6159aed1f04c6d179f61f6fb2691261e84 Bisecting: 2306 revisions left to test after this (roughly 11 steps) [753c8d9b7d81206bb5d011b28abe829d364b028e] Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit 753c8d9b7d81206bb5d011b28abe829d364b028e with gcc (GCC) 8.4.1 20210217 kernel signature: 8c9eabdfd2271bd91a2d9e189e5c0e224d96d0f15526ec75afeae1a396e005d6 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" "/tmp/syz-executor167696723" "root@10.128.1.68:./syz-executor167696723"]: exit status 1 ssh: connect to host 10.128.1.68 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" "/tmp/syz-executor390755990" "root@10.128.1.114:./syz-executor390755990"]: exit status 1 ssh: connect to host 10.128.1.114 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" "/tmp/syz-executor079321853" "root@10.128.1.125:./syz-executor079321853"]: exit status 1 ssh: connect to host 10.128.1.125 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" "/tmp/syz-executor379690552" "root@10.128.10.20:./syz-executor379690552"]: exit status 1 ssh: connect to host 10.128.10.20 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad 753c8d9b7d81206bb5d011b28abe829d364b028e Bisecting: 1156 revisions left to test after this (roughly 10 steps) [2f9b0d93a9d3ec64558537ab5d7cff820886afa4] net: ethernet: ti: cpsw: Fix suspend/resume break testing commit 2f9b0d93a9d3ec64558537ab5d7cff820886afa4 with gcc (GCC) 8.4.1 20210217 kernel signature: 4f29378ccbed1a293216d9c49c514e8c20b9b2772ff72782f381dd2cea636e28 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" "/tmp/syz-executor451221034" "root@10.128.0.188:./syz-executor451221034"]: exit status 1 ssh: connect to host 10.128.0.188 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" "/tmp/syz-executor184536961" "root@10.128.1.91:./syz-executor184536961"]: exit status 1 ssh: connect to host 10.128.1.91 port 22: Connection timed out lost connection run #2: crashed: kernel panic: Attempted to kill init! run #3: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor222804716" "root@10.128.1.7:./syz-executor222804716"]: exit status 1 ssh: connect to host 10.128.1.7 port 22: Connection timed out lost connection run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad 2f9b0d93a9d3ec64558537ab5d7cff820886afa4 Bisecting: 577 revisions left to test after this (roughly 9 steps) [d28d66e5a92de81199d21b696df707068361a4e7] net: ethernet: mediatek: fix mtk_eth_soc build errors & warnings testing commit d28d66e5a92de81199d21b696df707068361a4e7 with gcc (GCC) 8.4.1 20210217 kernel signature: 999b596f134b4769721838dbd31424992918119993993c4c5aa265b754310d68 run #0: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor442446590" "root@10.128.1.122:./syz-executor442446590"]: exit status 1 ssh: connect to host 10.128.1.122 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" "/tmp/syz-executor460945477" "root@10.128.0.182:./syz-executor460945477"]: exit status 1 ssh: connect to host 10.128.0.182 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" "/tmp/syz-executor865783520" "root@10.128.1.116:./syz-executor865783520"]: exit status 1 ssh: connect to host 10.128.1.116 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor180901567" "root@10.128.10.2:./syz-executor180901567"]: exit status 1 ssh: connect to host 10.128.10.2 port 22: Connection timed out lost connection run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad d28d66e5a92de81199d21b696df707068361a4e7 Bisecting: 281 revisions left to test after this (roughly 8 steps) [7b3ed2a137b077bc0967352088b0adb6049eed20] Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue testing commit 7b3ed2a137b077bc0967352088b0adb6049eed20 with gcc (GCC) 8.4.1 20210217 ./include/linux/netfilter_ipv6.h:110:9: error: implicit declaration of function 'nf_ct_frag6_gather'; did you mean 'nf_ct_attach'? [-Werror=implicit-function-declaration] # git bisect skip 7b3ed2a137b077bc0967352088b0adb6049eed20 Bisecting: 281 revisions left to test after this (roughly 8 steps) [f87845cf0f892d8f4b5aaa9117b2cb0a2f255666] net: stmmac: dwmac-meson: update with SPDX Licence identifier testing commit f87845cf0f892d8f4b5aaa9117b2cb0a2f255666 with gcc (GCC) 8.4.1 20210217 kernel signature: b8b0ccce7e1414ed0ea22cf6d16463fdbe6498243af9081be951eb154f03e5db all runs: OK # git bisect good f87845cf0f892d8f4b5aaa9117b2cb0a2f255666 Bisecting: 257 revisions left to test after this (roughly 8 steps) [33aae28285b73e013f7f697a61f569c5b48c6650] Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue testing commit 33aae28285b73e013f7f697a61f569c5b48c6650 with gcc (GCC) 8.4.1 20210217 kernel signature: cf5363289caedc790ef96cf4563c097cb57864e604e101bebcadff66b8667fff all runs: OK # git bisect good 33aae28285b73e013f7f697a61f569c5b48c6650 Bisecting: 128 revisions left to test after this (roughly 7 steps) [db4bad07371b53dbce34e8ae54d4aa93096841d6] net: ethernet: improve eth_platform_get_mac_address testing commit db4bad07371b53dbce34e8ae54d4aa93096841d6 with gcc (GCC) 8.4.1 20210217 kernel signature: 60f6a66843932cb068e093a9cb5bbe60ac48d37ba44469712dde2bc2e0422f03 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" "/tmp/syz-executor189121623" "root@10.128.1.95:./syz-executor189121623"]: exit status 1 ssh: connect to host 10.128.1.95 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" "/tmp/syz-executor889968586" "root@10.128.0.89:./syz-executor889968586"]: exit status 1 ssh: connect to host 10.128.0.89 port 22: Connection timed out lost connection run #2: crashed: kernel panic: Attempted to kill init! run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad db4bad07371b53dbce34e8ae54d4aa93096841d6 Bisecting: 63 revisions left to test after this (roughly 6 steps) [02205d2ed6fe26a8f4fd9e9cec251d1dc7f79316] bpf: media: properly use bpf_prog_array api testing commit 02205d2ed6fe26a8f4fd9e9cec251d1dc7f79316 with gcc (GCC) 8.4.1 20210217 kernel signature: 12169ef4b08c9cd61b50c340686eeecbf97f6dc012de43114bed8d5da92fd540 run #0: crashed: kernel panic: Attempted to kill init! run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor890099596" "root@10.128.1.120:./syz-executor890099596"]: exit status 1 ssh: connect to host 10.128.1.120 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" "/tmp/syz-executor334042491" "root@10.128.1.113:./syz-executor334042491"]: exit status 1 ssh: connect to host 10.128.1.113 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor128597662" "root@10.128.10.8:./syz-executor128597662"]: exit status 1 ssh: connect to host 10.128.10.8 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" "/tmp/syz-executor831180645" "root@10.128.10.9:./syz-executor831180645"]: exit status 1 ssh: connect to host 10.128.10.9 port 22: Connection timed out lost connection run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad 02205d2ed6fe26a8f4fd9e9cec251d1dc7f79316 Bisecting: 32 revisions left to test after this (roughly 5 steps) [a4b1d3c1ddf6cb441187b6c130a473c16a05a356] bpf: verifier: insert zero extension according to analysis result testing commit a4b1d3c1ddf6cb441187b6c130a473c16a05a356 with gcc (GCC) 8.4.1 20210217 kernel signature: 012edfa839bbb266eba149cc317d74cc7028eaf11750dc15d25b4208ab5f9cc8 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" "/tmp/syz-executor035988703" "root@10.128.0.223:./syz-executor035988703"]: exit status 1 ssh: connect to host 10.128.0.223 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" "/tmp/syz-executor574921906" "root@10.128.1.16:./syz-executor574921906"]: exit status 1 ssh: connect to host 10.128.1.16 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" "/tmp/syz-executor020366441" "root@10.128.0.61:./syz-executor020366441"]: exit status 1 ssh: connect to host 10.128.0.61 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" "/tmp/syz-executor661276340" "root@10.128.0.153:./syz-executor661276340"]: exit status 1 ssh: connect to host 10.128.0.153 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor090091139" "root@10.128.1.30:./syz-executor090091139"]: exit status 1 ssh: connect to host 10.128.1.30 port 22: Connection timed out lost connection run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad a4b1d3c1ddf6cb441187b6c130a473c16a05a356 Bisecting: 15 revisions left to test after this (roughly 4 steps) [e3b924224028c6fc31545e3812eecbe2ddbf35f6] libbpf: add resizable non-thread safe internal hashmap testing commit e3b924224028c6fc31545e3812eecbe2ddbf35f6 with gcc (GCC) 8.4.1 20210217 kernel signature: f40e423711e66510aa2367e11de4f34c7cf4c03ada6ede1a821e1777243ff88a all runs: OK # git bisect good e3b924224028c6fc31545e3812eecbe2ddbf35f6 Bisecting: 7 revisions left to test after this (roughly 3 steps) [5420f3207759cd618a7b8a04a4eb5fc1c12b35cb] Merge branch 'btf2c-converter' testing commit 5420f3207759cd618a7b8a04a4eb5fc1c12b35cb with gcc (GCC) 8.4.1 20210217 kernel signature: f40e423711e66510aa2367e11de4f34c7cf4c03ada6ede1a821e1777243ff88a all runs: OK # git bisect good 5420f3207759cd618a7b8a04a4eb5fc1c12b35cb Bisecting: 3 revisions left to test after this (roughly 2 steps) [a08acd118d5ca7f6e745ef81cfc6cbadacb56462] Merge branch 'bpf-send-sig' testing commit a08acd118d5ca7f6e745ef81cfc6cbadacb56462 with gcc (GCC) 8.4.1 20210217 kernel signature: 8dd35e646e15f18ca5d91bdfcba802393f4d5cea6e92ff2252a9a3680c68ef20 run #0: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor650750875" "root@10.128.0.175:./syz-executor650750875"]: exit status 1 ssh: connect to host 10.128.0.175 port 22: Connection timed out lost connection run #2: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor196563006" "root@10.128.0.136:./syz-executor196563006"]: exit status 1 ssh: connect to host 10.128.0.136 port 22: Connection timed out lost connection run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad a08acd118d5ca7f6e745ef81cfc6cbadacb56462 Bisecting: 1 revision left to test after this (roughly 1 step) [edaccf8985305967c22903a78283c8c837ea48dd] tools/bpf: sync bpf uapi header bpf.h to tools directory testing commit edaccf8985305967c22903a78283c8c837ea48dd with gcc (GCC) 8.4.1 20210217 kernel signature: 8dd35e646e15f18ca5d91bdfcba802393f4d5cea6e92ff2252a9a3680c68ef20 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" "/tmp/syz-executor165340192" "root@10.128.10.31:./syz-executor165340192"]: exit status 1 ssh: connect to host 10.128.10.31 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" "/tmp/syz-executor356633855" "root@10.128.10.30:./syz-executor356633855"]: exit status 1 ssh: connect to host 10.128.10.30 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" "/tmp/syz-executor371548754" "root@10.128.10.37:./syz-executor371548754"]: exit status 1 ssh: connect to host 10.128.10.37 port 22: Connection timed out lost connection run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad edaccf8985305967c22903a78283c8c837ea48dd Bisecting: 0 revisions left to test after this (roughly 0 steps) [8b401f9ed2441ad9e219953927a842d24ed051fc] bpf: implement bpf_send_signal() helper testing commit 8b401f9ed2441ad9e219953927a842d24ed051fc with gcc (GCC) 8.4.1 20210217 kernel signature: 8dd35e646e15f18ca5d91bdfcba802393f4d5cea6e92ff2252a9a3680c68ef20 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" "/tmp/syz-executor295479636" "root@10.128.1.73:./syz-executor295479636"]: exit status 1 ssh: connect to host 10.128.1.73 port 22: Connection timed out lost connection run #1: crashed: kernel panic: Attempted to kill init! 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" "/tmp/syz-executor039084195" "root@10.128.1.102:./syz-executor039084195"]: exit status 1 ssh: connect to host 10.128.1.102 port 22: Connection timed out lost connection run #3: crashed: kernel panic: Attempted to kill init! run #4: crashed: kernel panic: Attempted to kill init! run #5: crashed: kernel panic: Attempted to kill init! run #6: crashed: kernel panic: Attempted to kill init! run #7: crashed: kernel panic: Attempted to kill init! run #8: crashed: kernel panic: Attempted to kill init! run #9: crashed: kernel panic: Attempted to kill init! # git bisect bad 8b401f9ed2441ad9e219953927a842d24ed051fc 8b401f9ed2441ad9e219953927a842d24ed051fc is the first bad commit commit 8b401f9ed2441ad9e219953927a842d24ed051fc Author: Yonghong Song Date: Thu May 23 14:47:45 2019 -0700 bpf: implement bpf_send_signal() helper This patch tries to solve the following specific use case. Currently, bpf program can already collect stack traces through kernel function get_perf_callchain() when certain events happens (e.g., cache miss counter or cpu clock counter overflows). But such stack traces are not enough for jitted programs, e.g., hhvm (jited php). To get real stack trace, jit engine internal data structures need to be traversed in order to get the real user functions. bpf program itself may not be the best place to traverse the jit engine as the traversing logic could be complex and it is not a stable interface either. Instead, hhvm implements a signal handler, e.g. for SIGALARM, and a set of program locations which it can dump stack traces. When it receives a signal, it will dump the stack in next such program location. Such a mechanism can be implemented in the following way: . a perf ring buffer is created between bpf program and tracing app. . once a particular event happens, bpf program writes to the ring buffer and the tracing app gets notified. . the tracing app sends a signal SIGALARM to the hhvm. But this method could have large delays and causing profiling results skewed. This patch implements bpf_send_signal() helper to send a signal to hhvm in real time, resulting in intended stack traces. Acked-by: Andrii Nakryiko Signed-off-by: Yonghong Song Signed-off-by: Daniel Borkmann include/uapi/linux/bpf.h | 17 +++++++++++- kernel/trace/bpf_trace.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+), 1 deletion(-) culprit signature: 8dd35e646e15f18ca5d91bdfcba802393f4d5cea6e92ff2252a9a3680c68ef20 parent signature: f40e423711e66510aa2367e11de4f34c7cf4c03ada6ede1a821e1777243ff88a revisions tested: 26, total time: 5h4m15.430070454s (build: 2h49m50.569923897s, test: 2h10m26.546077011s) first bad commit: 8b401f9ed2441ad9e219953927a842d24ed051fc bpf: implement bpf_send_signal() helper recipients (to): ["andriin@fb.com" "daniel@iogearbox.net" "yhs@fb.com"] recipients (cc): [] crash: kernel panic: Attempted to kill init! printk: systemd: 43 output lines suppressed due to ratelimiting Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b CPU: 0 PID: 1 Comm: systemd Not tainted 5.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x86/0xca lib/dump_stack.c:113 panic+0x1e7/0x46c kernel/panic.c:219 find_child_reaper kernel/exit.c:583 [inline] forget_original_parent kernel/exit.c:681 [inline] exit_notify kernel/exit.c:718 [inline] do_exit.cold.4+0x135/0x20e kernel/exit.c:898 do_group_exit+0xf8/0x2c0 kernel/exit.c:981 get_signal+0x332/0x1bb0 kernel/signal.c:2638 do_signal+0x87/0x1750 arch/x86/kernel/signal.c:815 exit_to_usermode_loop+0x10f/0x150 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:279 [inline] do_syscall_64+0x3e1/0x480 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8f3d99df17 Code: Bad RIP value. RSP: 002b:00007ffce87b42f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000027 RAX: 0000000000000001 RBX: 000055ad78888f50 RCX: 00007f8f3d99df17 RDX: 00007ffce87b4480 RSI: 00007ffce87b45b0 RDI: 0000000000000007 RBP: 0000000000000007 R08: 0000000002faf080 R09: 00000000000039c0 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffce8fb2f30 R13: 0000000000000001 R14: ffffffffffffffff R15: 0000000000000002 Kernel Offset: disabled Rebooting in 86400 seconds..