ci2 starts bisection 2023-08-13 19:04:26.430021407 +0000 UTC m=+188160.128590331 bisecting cause commit starting from ae545c3283dc673f7e748065efa46ba95f678ef2 building syzkaller on 39990d513277ce9372a4cc89bdac23d9fc30b056 ensuring issue is reproducible on original commit ae545c3283dc673f7e748065efa46ba95f678ef2 testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9ac7c6f4db91d47e20748f761b92926841a06579d74c16f7ca7919d95322b3d4 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] check whether we can drop unnecessary instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f680cff73d9811a971643574e1d466cdb5f93f9b09ebfa87c9e4d300fb2bac26 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #9: basic kernel testing failed: failed to copy binary to VM: timedout after 1m0s ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor4221690816" "root@10.128.1.175:./syz-executor4221690816"] Executing: program /usr/bin/ssh host 10.128.1.175, user root, command sftp OpenSSH_9.2p1 Debian-2, OpenSSL 3.0.9 30 May 2023 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.175 [10.128.1.175] port 22. debug1: fd 3 clearing O_NONBLOCK debug1: Connection established. debug1: identity file /root/.ssh/id_rsa type -1 debug1: identity file /root/.ssh/id_rsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa type -1 debug1: identity file /root/.ssh/id_ecdsa-cert type -1 debug1: identity file /root/.ssh/id_ecdsa_sk type -1 debug1: identity file /root/.ssh/id_ecdsa_sk-cert type -1 debug1: identity file /root/.ssh/id_ed25519 type -1 debug1: identity file /root/.ssh/id_ed25519-cert type -1 debug1: identity file /root/.ssh/id_ed25519_sk type -1 debug1: identity file /root/.ssh/id_ed25519_sk-cert type -1 debug1: identity file /root/.ssh/id_xmss type -1 debug1: identity file /root/.ssh/id_xmss-cert type -1 debug1: identity file /root/.ssh/id_dsa type -1 debug1: identity file /root/.ssh/id_dsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_9.2p1 Debian-2 debug1: Remote protocol version 2.0, remote software version OpenSSH_9.1 debug1: compat_banner: match: OpenSSH_9.1 pat OpenSSH* compat 0x04000000 debug1: Authenticating to 10.128.1.175:22 as 'root' debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: algorithm: sntrup761x25519-sha512@openssh.com debug1: kex: host key algorithm: ssh-ed25519 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: compression: none debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug1: SSH2_MSG_KEX_ECDH_REPLY received debug1: Server host key: ssh-ed25519 SHA256:88IuL3orPAmVsyjIy2DvkKzVRHqGoDXxazNYOfOHasg debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts: No such file or directory debug1: load_hostkeys: fopen /etc/ssh/ssh_known_hosts2: No such file or directory Warning: Permanently added '10.128.1.175' (ED25519) to the list of known hosts. debug1: rekey out after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: rekey in after 134217728 blocks debug1: Will attempt key: /root/.ssh/id_rsa debug1: Will attempt key: /root/.ssh/id_ecdsa debug1: Will attempt key: /root/.ssh/id_ecdsa_sk debug1: Will attempt key: /root/.ssh/id_ed25519 debug1: Will attempt key: /root/.ssh/id_ed25519_sk debug1: Will attempt key: /root/.ssh/id_xmss debug1: Will attempt key: /root/.ssh/id_dsa debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs= debug1: kex_input_ext_info: publickey-hostbound@openssh.com=<0> representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the bug reproduces without the instrumentation disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed kconfig minimization: base=3876 full=7645 leaves diff=1998 split chunks (needed=false): <1998> split chunk #0 of len 1998 into 5 parts testing without sub-chunk 1/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d349d9f4a73647b86676e6d6993e3f8fecd835cbc50533b987ec504cb5bc80d6 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c4dda5c1d959acbddd026615b818f0c891d5c5e4fb7029ccedaa3e6e98cbd47 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP HANG LEAK UBSAN BUG], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ffea82c4d86ae765a5fdf0eaebca1693a2699d2fe661c99cc783e23710f7981f run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7af8c66bef09462addd7e1e452bbda40ce5fd76c6af3da819eb2287130fbac86 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [HANG LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit ae545c3283dc673f7e748065efa46ba95f678ef2 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: ab53bfc488e3a086da7e2399571df03f1a7dce24a8e01aec4f497b9888d23430 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: OK run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] the chunk can be dropped disabling configs for [ATOMIC_SLEEP HANG LEAK UBSAN BUG KASAN LOCKDEP], they are not needed testing release v6.4 testing commit 6995e2de6891c724bfeb2db33d7b87775f913ad1 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 85fed01ec99503d2263cfd78b9fb8927fc5d5aebd9a49c2bc529f2df51ef9bd6 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: OK run #6: OK run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v6.3 testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a8ff21094ba4474fb9a440ea18862e1868b79795915e272477f393617a8cb8e7 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: OK run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v6.2 testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b0aa98a8344d5dcadcc12795d05c34a723a1cf47d61262be66f612245de175f0 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 75bd8d6e2454e905476746ad40fac646f62f14e520a1b1bf9920d9b9397dc592 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: faa2b0bf86a3f240b8937c53a91351ec4cb5ed68d49de52ff5915800794944ef run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: OK run #7: OK run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0a490af2d95db6560468cc8ab8927f98e1e3da4b70c74c08528c7804130d2a8a all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 5eac7c67964eb39c7dc5b6951a08b72cf48b372e497f970fa6f1de7c87afde66 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.17 testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 90486aa0554760b2ecc46220cbcbd3df6ddb9c5a03e5deb5cff8514ceff7bd2c all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 21ce624c4c7955989e75a44a13861c696fe124029cde20285b3081cf02baa769 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.15 testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 93374a0c4a4b021a721eccff05fa302fff7cb69a8a2b6b7a8f310cfafde886a9 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.14 testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f82adfe41a579572cc4d52ea985c855262fc8288d4dd420d0f0ed51ff5eeb3f1 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.13 testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 7c921591ccc1f7aef0414eec477c0a89acc36a0293737812eed78cbbfe37a155 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.12 testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: eead69a39be0572136a896f3f57191c2c05d1b87b45f851095e7280360bad5c0 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 77c2a96ff022bf969b6d42732771dc40866005e509912d89752ca395172ecaf4 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d9fa3d92ce4339e493987e3b7673003f487c8bfc3590a66ff08b5dbb942da783 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 0872295a99c62ac6f9cc47988be53169445fd3620c7f6f1ad18b6879b84e6482 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 695eb9eec8691cce2673bcebcf1970632f33aff8c97e47c7c0cb3e89600e1995 run #0: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #1: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #2: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #3: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #4: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #5: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #6: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #7: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error run #8: OK run #9: OK representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 gcc compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.40 kernel signature: efa74726ef9f726433151df044546c6f28075638790e0f09db30027160b3efc1 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c2ef5b7907fb16b4a24615fcd8ea58daa3f5b557be4309714bef626f24a81d57 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.5 testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: bb8bdd2fcd1180fef0b5c7a4e223504f3a91c4fd0b16a2fe31c00ac6c841709e all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.4 testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: d450c06f516fb78a1c876e089e797bcb4c479c076c8952e70cf5a5e37e545aa9 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.3 testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c1d25b7878e282c85080d4c341aff8f15c3e8147d0563d3e95f089e24956c3c0 all runs: boot failed: can't ssh into the instance unable to determine the verdict: 0 good runs (wanted 5), for bad wanted 5 in total, got 0 testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: c8f5a95dcff7df8a0d168b5f0ff1e646dc3405e618183651dfbd2714aeda0b1b all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6a9dce3a6ba246f027047e8bb440a68d0d6f0972c1cc56d3d0cdaf3010ec48b5 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: eecb3a7b3a2c2e7517a149eacdfc74a7970550d61c14073c84b8fb142c5aef3a all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: cebd54beefa531d47dc5d767d40bd2aa065007a81d95a030f7b6776d05c633e8 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: caf1cc0e6a7a2488819b18dcfc53ccc6312b2b263c587eef69f8ce0273722ea8 all runs: crashed: kernel panic: EXT4-fs (device loop0): panic forced after error representative crash: kernel panic: EXT4-fs (device loop0): panic forced after error, types: [UNKNOWN] crash still not fixed/happens on the oldest tested release revisions tested: 34, total time: 8h4m53.675570195s (build: 4h0m10.552436766s, test: 3h35m23.123659743s) oldest tested release already had the bug or it had kernel test errors commit msg: Linux 4.19 crash: kernel panic: EXT4-fs (device loop0): panic forced after error EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended EXT4-fs warning (device loop0): ext4_update_dynamic_rev:831: updating to rev 1 because of new feature flag, running e2fsck is recommended EXT4-fs error (device loop0): ext4_validate_block_bitmap:385: comm syz-executor.0: bg 0: block 46: invalid block bitmap Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error Kernel Offset: disabled Rebooting in 86400 seconds..