Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts. 2019/01/29 12:07:52 parsed 1 programs 2019/01/29 12:07:58 executed programs: 0 2019/01/29 12:08:03 executed programs: 58 login: witness: thread 0xffff800020b74bc0 exiting with the following locks held: exclusive rrwlock inode r = 0 (0xfffffd806c0dc1b8) locked @ /syzkaller/managers/multicore/kernel/sys/ufs/ufs/ufs_vnops.c:1547 panic: thread 0xffff800020b74bc0 cannot exit while holding sleeplocks Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 448805 25285 0 0x2 0x480 1 syz-executor1 *508604 5420 0 0x14000 0x200 0 reaper db_enter() at db_enter+0x18 panic() at panic+0x16c witness_thread_exit(69414320da947469) at witness_thread_exit+0x244 reaper(0) at reaper+0x14f end trace frame: 0x0, count: 11 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{0}> ddb{0}>