Autoloading module: intpm.ko
Starting background file system checks in 60 seconds.

Wed May  1 02:33

FreeBSD/amd64 (ci-freebsd-main-8.c.syzkaller.internal) (ttyu0)



Warning: Permanently added '10.128.0.131' (ECDSA) to the list of known hosts.
2019/05/01 02:33:29 parsed 1 programs
2019/05/01 02:33:29 executed programs: 0
login: panic: udp_output: shared udbinfo lock, excl inp lock
cpuid = 1
time = 1556678010
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00212b1550
vpanic() at vpanic+0x1e0/frame 0xfffffe00212b15b0
panic() at panic+0x43/frame 0xfffffe00212b1610
udp_send() at udp_send+0x139c/frame 0xfffffe00212b1730
sosend_dgram() at sosend_dgram+0x550/frame 0xfffffe00212b17a0
sosend() at sosend+0xc6/frame 0xfffffe00212b1810
kern_sendit() at kern_sendit+0x35e/frame 0xfffffe00212b18c0
sendit() at sendit+0x226/frame 0xfffffe00212b1920
sys_sendmsg() at sys_sendmsg+0x8b/frame 0xfffffe00212b1980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe00212b1ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00212b1ab0
--- syscall (198, FreeBSD ELF64, nosys), rip = 0x412fda, rsp = 0x7fffdffbbf38, rbp = 0x3 ---
KDB: enter: panic
[ thread pid 935 tid 100312 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why