Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. 2019/03/26 06:48:38 parsed 1 programs 2019/03/26 06:48:38 executed programs: 0 2019/03/26 06:48:43 executed programs: 55 2019/03/26 06:48:48 executed programs: 106 2019/03/26 06:48:53 executed programs: 154 2019/03/26 06:48:58 executed programs: 203 2019/03/26 06:49:03 executed programs: 251 2019/03/26 06:49:08 executed programs: 297 2019/03/26 06:49:13 executed programs: 346 panic: vm_page_unhold: hold count < 0!!! cpuid = 0 time = 1553582956 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe002126d6d0 vpanic() at vpanic+0x1e0/frame 0xfffffe002126d730 panic() at panic+0x43/frame 0xfffffe002126d790 vm_page_unhold_pages() at vm_page_unhold_pages+0x1e3/frame 0xfffffe002126d7e0 pipe_write() at pipe_write+0x16d8/frame 0xfffffe002126d8b0 dofilewrite() at dofilewrite+0xfd/frame 0xfffffe002126d910 kern_writev() at kern_writev+0x66/frame 0xfffffe002126d950 sys_writev() at sys_writev+0x50/frame 0xfffffe002126d980 amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe002126dab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe002126dab0 --- syscall (198, FreeBSD ELF64, nosys), rip = 0x412e7a, rsp = 0x7fffdffdcf38, rbp = 0x3 --- KDB: enter: panic [ thread pid 1168 tid 100186 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why