ci2 starts bisection 2025-07-06 19:00:59.844190912 +0000 UTC m=+131001.312332467 bisecting fixing commit since ba8b8b19339409d005e0b71075309daf1bbbcbb6 building syzkaller on 53a8b9bd23a6fac52f298fb6115c012757f0a505 ensuring issue is reproducible on original commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b059763778268948b03d0904206c6164907b67eb1256510441ab2516342946a9 run #0: crashed: BUG: soft lockup in sys_recvmsg run #1: crashed: BUG: soft lockup in sys_sendmsg run #2: crashed: BUG: soft lockup in sys_recvmsg run #3: crashed: BUG: soft lockup in sys_recvmsg run #4: crashed: BUG: soft lockup in sys_sendmsg run #5: crashed: BUG: soft lockup in sys_sendmsg run #6: crashed: BUG: soft lockup in sys_recvmsg run #7: crashed: BUG: soft lockup in sys_sendmsg run #8: crashed: BUG: soft lockup in sys_sendmsg run #9: crashed: BUG: soft lockup in tipc_release run #10: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3660691093" "root@10.128.10.32:./syz-executor3660691093"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.32, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.32 [10.128.10.32] port 22. debug1: connect to address 10.128.10.32 port 22: Connection timed out ssh: connect to host 10.128.10.32 port 22: Connection timed out scp: Connection closed run #11: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor473681318" "root@10.128.10.37:./syz-executor473681318"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.37, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.37 [10.128.10.37] port 22. debug1: connect to address 10.128.10.37 port 22: Connection timed out ssh: connect to host 10.128.10.37 port 22: Connection timed out scp: Connection closed run #12: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3486874207" "root@10.128.0.75:./syz-executor3486874207"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.75, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.75 [10.128.0.75] port 22. debug1: connect to address 10.128.0.75 port 22: Connection timed out ssh: connect to host 10.128.0.75 port 22: Connection timed out scp: Connection closed run #13: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3689104233" "root@10.128.10.43:./syz-executor3689104233"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.43, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.43 [10.128.10.43] port 22. debug1: connect to address 10.128.10.43 port 22: Connection timed out ssh: connect to host 10.128.10.43 port 22: Connection timed out scp: Connection closed run #14: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3381691255" "root@10.128.0.88:./syz-executor3381691255"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.88, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.88 [10.128.0.88] port 22. debug1: connect to address 10.128.0.88 port 22: Connection timed out ssh: connect to host 10.128.0.88 port 22: Connection timed out scp: Connection closed run #15: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2298666261" "root@10.128.10.34:./syz-executor2298666261"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.34, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.34 [10.128.10.34] port 22. debug1: connect to address 10.128.10.34 port 22: Connection timed out ssh: connect to host 10.128.10.34 port 22: Connection timed out scp: Connection closed run #16: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor879505313" "root@10.128.0.230:./syz-executor879505313"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.230, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.230 [10.128.0.230] port 22. debug1: connect to address 10.128.0.230 port 22: Connection timed out ssh: connect to host 10.128.0.230 port 22: Connection timed out scp: Connection closed run #17: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor224509339" "root@10.128.0.233:./syz-executor224509339"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.233, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.233 [10.128.0.233] port 22. debug1: connect to address 10.128.0.233 port 22: Connection timed out ssh: connect to host 10.128.0.233 port 22: Connection timed out scp: Connection closed run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_recvmsg, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a40b5382b1bf6f3a60ebaf1a07678ae5cde241397d5fc4f7f2d07d0c128eca15 run #0: crashed: BUG: soft lockup in sys_sendmsg run #1: crashed: BUG: soft lockup in sys_recvmsg run #2: crashed: BUG: soft lockup in sys_sendmsg run #3: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor4004546555" "root@10.128.10.38:./syz-executor4004546555"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.38, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.38 [10.128.10.38] port 22. debug1: connect to address 10.128.10.38 port 22: Connection timed out ssh: connect to host 10.128.10.38 port 22: Connection timed out scp: Connection closed run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK representative crash: BUG: soft lockup in sys_sendmsg, types: [HANG] the bug reproduces without the instrumentation disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed kconfig minimization: base=4788 full=6021 leaves diff=245 split chunks (needed=false): <245> split chunk #0 of len 245 into 5 parts testing without sub-chunk 1/5 disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: c000486534d230e053c5d9c2f2e000af626b9045705c39d695a6c9d819a34498 run #0: crashed: BUG: soft lockup in sys_recvmsg run #1: crashed: BUG: soft lockup in sys_recvmsg run #2: crashed: BUG: soft lockup in sys_recvmsg run #3: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1301950111" "root@10.128.1.123:./syz-executor1301950111"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.123, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.123 [10.128.1.123] port 22. debug1: connect to address 10.128.1.123 port 22: Connection timed out ssh: connect to host 10.128.1.123 port 22: Connection timed out scp: Connection closed run #4: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor4011637515" "root@10.128.10.43:./syz-executor4011637515"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.43, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.43 [10.128.10.43] port 22. debug1: connect to address 10.128.10.43 port 22: Connection timed out ssh: connect to host 10.128.10.43 port 22: Connection timed out scp: Connection closed run #5: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1069837334" "root@10.128.10.47:./syz-executor1069837334"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.47, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.47 [10.128.10.47] port 22. debug1: connect to address 10.128.10.47 port 22: Connection timed out ssh: connect to host 10.128.10.47 port 22: Connection timed out scp: Connection closed run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1433223778" "root@10.128.1.24:./syz-executor1433223778"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.24, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.24 [10.128.1.24] port 22. debug1: connect to address 10.128.1.24 port 22: Connection timed out ssh: connect to host 10.128.1.24 port 22: Connection timed out scp: Connection closed run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1600735440" "root@10.128.1.37:./syz-executor1600735440"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.37, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.37 [10.128.1.37] port 22. debug1: connect to address 10.128.1.37 port 22: Connection timed out ssh: connect to host 10.128.1.37 port 22: Connection timed out scp: Connection closed run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_recvmsg, types: [HANG] testing without sub-chunk 2/5 disabling configs for [kasan locking atomic_sleep memleak ubsan bug_or_warning], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 99bd8fb6d0fad74d71cd7e463f8ff29996500438c3c1fc79d572043a81c0e97b run #0: crashed: BUG: soft lockup in sys_sendmsg run #1: crashed: BUG: soft lockup in sys_sendmsg run #2: crashed: BUG: soft lockup in sys_sendmsg run #3: crashed: BUG: soft lockup in sys_sendmsg run #4: crashed: BUG: soft lockup in sys_recvmsg run #5: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor3042279449" "root@10.128.0.208:./syz-executor3042279449"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.208, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.208 [10.128.0.208] port 22. debug1: connect to address 10.128.0.208 port 22: Connection timed out ssh: connect to host 10.128.0.208 port 22: Connection timed out scp: Connection closed run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2177539094" "root@10.128.10.30:./syz-executor2177539094"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.30, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.30 [10.128.10.30] port 22. debug1: connect to address 10.128.10.30 port 22: Connection timed out ssh: connect to host 10.128.10.30 port 22: Connection timed out scp: Connection closed run #7: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2330258377" "root@10.128.0.241:./syz-executor2330258377"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.241, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.241 [10.128.0.241] port 22. debug1: connect to address 10.128.0.241 port 22: Connection timed out ssh: connect to host 10.128.0.241 port 22: Connection timed out scp: Connection closed run #8: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor143289672" "root@10.128.1.4:./syz-executor143289672"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.4, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.4 [10.128.1.4] port 22. debug1: connect to address 10.128.1.4 port 22: Connection timed out ssh: connect to host 10.128.1.4 port 22: Connection timed out scp: Connection closed run #9: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2159147643" "root@10.128.10.42:./syz-executor2159147643"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.42, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.42 [10.128.10.42] port 22. debug1: connect to address 10.128.10.42 port 22: Connection timed out ssh: connect to host 10.128.10.42 port 22: Connection timed out scp: Connection closed run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_sendmsg, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9a982df0d6c7ee2935bc988235d936deeefcc97c8e0650b513c342c2ef3634a2 run #0: crashed: BUG: soft lockup in sys_recvmsg run #1: crashed: BUG: soft lockup in sys_sendmsg run #2: crashed: BUG: soft lockup in sys_sendmsg run #3: crashed: BUG: soft lockup in sys_sendmsg run #4: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2256091702" "root@10.128.10.45:./syz-executor2256091702"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.45, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.45 [10.128.10.45] port 22. debug1: connect to address 10.128.10.45 port 22: Connection timed out ssh: connect to host 10.128.10.45 port 22: Connection timed out scp: Connection closed run #5: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor297979315" "root@10.128.10.35:./syz-executor297979315"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.10.35, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.10.35 [10.128.10.35] port 22. debug1: connect to address 10.128.10.35 port 22: Connection timed out ssh: connect to host 10.128.10.35 port 22: Connection timed out scp: Connection closed run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_recvmsg, types: [HANG] testing without sub-chunk 4/5 disabling configs for [atomic_sleep memleak ubsan bug_or_warning kasan locking], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fa6627efeea4642ee4ce01a15c534f5e2031e9f4604b8fbe03ed951186f3bd7c run #0: crashed: BUG: soft lockup in sys_recvmsg run #1: crashed: BUG: soft lockup in sys_recvmsg run #2: crashed: BUG: soft lockup in sys_recvmsg run #3: crashed: BUG: soft lockup in sys_recvmsg run #4: crashed: BUG: soft lockup in sys_sendmsg run #5: crashed: BUG: soft lockup in sys_recvmsg run #6: crashed: BUG: soft lockup in sys_sendmsg run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_recvmsg, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [ubsan bug_or_warning kasan locking atomic_sleep memleak], they are not needed testing commit ba8b8b19339409d005e0b71075309daf1bbbcbb6 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: f78c51be39403a14daea7e8cf1e972623628504bd174c5d78f6098f5930f9be3 all runs: OK false negative chance: 0.000 minimized to 147 configs; suspects: [ARCH_CONFIGURES_CPU_MITIGATIONS ARCH_HAS_CPU_FINALIZE_INIT ARCH_WANT_FRAME_POINTERS CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER CFG80211 CFG80211_REQUIRE_SIGNED_REGDB CFG80211_USE_KERNEL_REGDB_KEYS DRAGONRISE_FF DRM DRM_BRIDGE DRM_GEM_SHMEM_HELPER DRM_KMS_HELPER DRM_PANEL DRM_PANEL_BRIDGE DRM_PANEL_ORIENTATION_QUIRKS DRM_TTM DRM_TTM_DMA_PAGE_POOL DRM_VIRTIO_GPU DUMMY_CONSOLE DVB_CORE FB FB_CMDLINE FB_DEFERRED_IO FB_NOTIFY FB_SYS_COPYAREA FB_SYS_FILLRECT FB_SYS_FOPS FB_SYS_IMAGEBLIT GPIOLIB_IRQCHIP GREENASIA_FF HDMI HID_A4TECH HID_ACRUX HID_ACRUX_FF HID_APPLEIR HID_AUREAL HID_BELKIN HID_CHERRY HID_CHICONY HID_CP2112 HID_CYPRESS HID_DRAGONRISE HID_ELO HID_EMS_FF HID_EZKEY HID_GREENASIA HID_GT683R HID_GYRATION HID_ICADE HID_ITE HID_KENSINGTON HID_KEYTOUCH HID_KYE HID_LCPOWER HID_LED HID_LENOVO HID_MONTEREY HID_NTI HID_NTRIG HID_SMARTJOYPLUS HID_THRUSTMASTER HID_ZEROPLUS INPUT_TABLET INPUT_TOUCHSCREEN MEDIA_DIGITAL_TV_SUPPORT REGMAP_SPI RESET_CONTROLLER RFKILL RFKILL_LEDS RMI4_2D_SENSOR RMI4_CORE RMI4_F03 RMI4_F03_SERIO RMI4_F11 RMI4_F12 RMI4_F30 SMARTJOYPLUS_FF SMSC_PHY SND SND_COMPRESS_OFFLOAD SND_DMAENGINE_PCM SND_DMA_SGBUF SND_DYNAMIC_MINORS SND_HRTIMER SND_HWDEP SND_PCI SND_PCM SND_PCM_TIMER SND_PROC_FS SND_RAWMIDI SND_SOC SND_SOC_ACPI SND_SOC_ACPI_INTEL_MATCH SND_SOC_COMPRESS SND_SOC_GENERIC_DMAENGINE_PCM SND_SOC_I2C_AND_SPI SND_SOC_INTEL_MACH SND_SOC_INTEL_SST_TOPLEVEL SND_SOC_TOPOLOGY SND_SPI SND_SST_ATOM_HIFI2_PLATFORM SND_SST_ATOM_HIFI2_PLATFORM_ACPI SND_TIMER SND_USB SND_USB_AUDIO SND_USB_AUDIO_USE_MEDIA_CONTROLLER SND_VERBOSE_PROCFS SND_X86 SOUND TABLET_USB_ACECAD TABLET_USB_AIPTEK TABLET_USB_GTCO TABLET_USB_HANWANG TABLET_USB_KBTAB THRUSTMASTER_FF TOOLS_SUPPORT_RELR TOUCHSCREEN_PROPERTIES TYPEC_DP_ALTMODE TYPEC_FUSB302 USB_ARMLINUX USB_BELKIN USB_CONFIGFS USB_CONFIGFS_ACM USB_CONFIGFS_ECM USB_NET_CDC_MBIM USB_NET_CDC_SUBSET USB_NET_CDC_SUBSET_ENABLE USB_NET_DM9601 USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM USB_XHCI_PCI_RENESAS VT WIRELESS WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS ZEROPLUS_FF] disabling configs for [memleak ubsan bug_or_warning kasan locking atomic_sleep], they are not needed testing current HEAD 59e9a72288571b476bbe39902c89aed0423905bf testing commit 59e9a72288571b476bbe39902c89aed0423905bf gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 13482ec9ae1d1eb1687776ec2c7c0ffff61bd2705fe20e466af27916b9fd2c53 run #0: crashed: BUG: soft lockup in sys_sendmsg run #1: crashed: BUG: soft lockup in sys_recvmsg run #2: crashed: BUG: soft lockup in sys_recvmsg run #3: crashed: BUG: soft lockup in sys_recvmsg run #4: crashed: BUG: soft lockup in sys_sendmsg run #5: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor1750825256" "root@10.128.1.158:./syz-executor1750825256"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.1.158, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.1.158 [10.128.1.158] port 22. debug1: connect to address 10.128.1.158 port 22: Connection timed out ssh: connect to host 10.128.1.158 port 22: Connection timed out scp: Connection closed run #6: basic kernel testing failed: failed to copy binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "IdentitiesOnly=yes" "-o" "BatchMode=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-v" "/tmp/syz-executor2008559862" "root@10.128.0.225:./syz-executor2008559862"]: exit status 255 Executing: program /usr/bin/ssh host 10.128.0.225, user root, command sftp OpenSSH_9.2p1 Debian-2+deb12u6, OpenSSL 3.0.16 11 Feb 2025 debug1: Reading configuration data /dev/null debug1: Connecting to 10.128.0.225 [10.128.0.225] port 22. debug1: connect to address 10.128.0.225 port 22: Connection timed out ssh: connect to host 10.128.0.225 port 22: Connection timed out scp: Connection closed run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK representative crash: BUG: soft lockup in sys_sendmsg, types: [HANG] crash still not fixed/happens on the oldest tested release reproducer is flaky (0.35 repro chance estimate) revisions tested: 8, total time: 2h5m54.321422021s (build: 16m29.879542857s, test: 1h48m6.095657753s) crash still not fixed or there were kernel test errors commit msg: Merge android13-5.10 into android13-5.10-lts crash: BUG: soft lockup in sys_sendmsg watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.0.111:862] Modules linked in: CPU: 0 PID: 862 Comm: syz.0.111 Not tainted 5.10.238-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:104 [inline] RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:923 [inline] RIP: 0010:kvm_wait+0x3e/0x40 arch/x86/kernel/kvm.c:903 Code: 40 38 d6 74 03 50 9d c3 f6 c4 02 75 0f 0f 1f 44 00 00 0f 00 2d 01 67 35 01 f4 eb e9 0f 1f 44 00 00 0f 00 2d f2 66 35 01 fb f4 d9 8b 05 7a 8f f7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc900014c3be8 EFLAGS: 00000242 RAX: 0000000000000246 RBX: ffff888237c4b480 RCX: 0000000000000008 RDX: 0000000000000003 RSI: 0000000000000003 RDI: ffff88811a79f208 RBP: ffffc900014c3c28 R08: ffff88823fff0100 R09: 0000000000000000 R10: 0000000000000001 R11: ffff888237c4b480 R12: ffff88811a79f208 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100 FS: 00007f15292f96c0(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f15292d8d58 CR3: 00000001177b7000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:183 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x19/0x60 net/core/sock.c:3117 lock_sock include/net/sock.h:1648 [inline] tipc_sendstream+0x23/0x50 net/tipc/socket.c:1540 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg+0x35/0x40 net/socket.c:664 ____sys_sendmsg+0x23e/0x260 net/socket.c:2376 ___sys_sendmsg+0x74/0xc0 net/socket.c:2430 __sys_sendmsg+0x5d/0xb0 net/socket.c:2459 __do_sys_sendmsg net/socket.c:2468 [inline] __se_sys_sendmsg net/socket.c:2466 [inline] __x64_sys_sendmsg+0x1a/0x20 net/socket.c:2466 do_syscall_64+0x32/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1529888169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f15292f9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1529aaffa0 RCX: 00007f1529888169 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000004 RBP: 00007f152990aa68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1529aaffa0 R15: 00007ffd2ef0dc78 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 863 Comm: syz.0.111 Not tainted 5.10.238-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:preempt_count_sub+0x2e/0x40 kernel/sched/core.c:4499 Code: 23 02 85 c0 75 1b 65 8b 05 3f a6 ea 7e 89 c2 81 e2 ff ff ff 7f 39 fa 7c 16 81 ff fe 00 00 00 76 0a f7 df 65 01 3d 22 a6 ea 7e 84 c0 75 f2 55 48 89 e5 e8 44 dd 46 00 5d c3 66 90 89 d0 48 01 RSP: 0018:ffffc900014cb6c0 EFLAGS: 00000203 RAX: 0000000000000402 RBX: 00000000e80d3435 RCX: 0000000000000001 RDX: 0000000000000402 RSI: 0000000000000201 RDI: 00000000fffffe00 RBP: ffffc900014cb6c8 R08: ffffc900014cb6ac R09: 0000000000000001 R10: ffff8881173a2c00 R11: ffff8881171ca000 R12: ffffc900014cb7f4 R13: ffff8881175c6d80 R14: ffff88811a79f180 R15: ffffc900014cb7e0 FS: 00007f15292d86c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f15292d7f98 CR3: 00000001177b7000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x23/0x30 kernel/locking/spinlock.c:207 spin_unlock_bh include/linux/spinlock.h:399 [inline] tipc_skb_peek_port net/tipc/msg.h:1258 [inline] tipc_sk_rcv+0xa0/0x740 net/tipc/socket.c:2487 tipc_node_xmit+0x7d/0x5c0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0xe9/0x120 net/tipc/node.c:1754 tipc_sk_rcv+0x2a0/0x740 net/tipc/socket.c:2497 tipc_node_xmit+0x7d/0x5c0 net/tipc/node.c:1674 tipc_sk_push_backlog+0x8f/0x150 net/tipc/socket.c:1306 tipc_sk_conn_proto_rcv net/tipc/socket.c:1358 [inline] tipc_sk_proto_rcv net/tipc/socket.c:2156 [inline] tipc_sk_filter_rcv+0xc81/0xe00 net/tipc/socket.c:2350 tipc_sk_enqueue net/tipc/socket.c:2442 [inline] tipc_sk_rcv+0x3bc/0x740 net/tipc/socket.c:2493 tipc_node_xmit+0x7d/0x5c0 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0xe9/0x120 net/tipc/node.c:1754 tipc_sk_backlog_rcv+0x5d/0x80 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1052 [inline] __release_sock+0x5f/0xa0 net/core/sock.c:2583 release_sock+0x2b/0x90 net/core/sock.c:3134 tipc_wait_for_rcvmsg.isra.0+0xeb/0x1c0 net/tipc/socket.c:1849 tipc_recvstream+0xb3/0x340 net/tipc/socket.c:2040 sock_recvmsg_nosec net/socket.c:905 [inline] sock_recvmsg net/socket.c:923 [inline] sock_recvmsg net/socket.c:919 [inline] ____sys_recvmsg+0x161/0x180 net/socket.c:2595 ___sys_recvmsg+0x8f/0x120 net/socket.c:2637 __sys_recvmsg+0x5a/0xb0 net/socket.c:2667 __do_sys_recvmsg net/socket.c:2677 [inline] __se_sys_recvmsg net/socket.c:2674 [inline] __x64_sys_recvmsg+0x1a/0x20 net/socket.c:2674 do_syscall_64+0x32/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1529888169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f15292d8038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007f1529ab0080 RCX: 00007f1529888169 RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003 RBP: 00007f152990aa68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f1529ab0080 R15: 00007ffd2ef0dc78