Autoloading module: intpm.ko Starting background file system checks in 60 seconds. Thu Aug 22 05:21 FreeBSD/amd64 (ci-freebsd-i386-1.c.syzkaller.internal) (ttyu0) Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. 2019/08/22 05:21:40 parsed 1 programs 2019/08/22 05:21:40 executed programs: 0 login: panic: sx lock still held cpuid = 0 time = 1566451300 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe001f890750 vpanic() at vpanic+0x1e0/frame 0xfffffe001f8907b0 panic() at panic+0x43/frame 0xfffffe001f890810 sx_destroy() at sx_destroy+0x5e/frame 0xfffffe001f890830 solisten_proto() at solisten_proto+0xd2/frame 0xfffffe001f890890 tcp6_usr_listen() at tcp6_usr_listen+0x1cc/frame 0xfffffe001f8908f0 solisten() at solisten+0x7a/frame 0xfffffe001f890930 kern_listen() at kern_listen+0x125/frame 0xfffffe001f890970 ia32_syscall() at ia32_syscall+0x46c/frame 0xfffffe001f890ab0 int0x80_syscall_common() at int0x80_syscall_common+0x9c/frame 0x8142e6a KDB: enter: panic [ thread pid 807 tid 100137 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why