login: panic: thread with borrowed priority returning to userland
cpuid = 1
time = 1590795582
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0025a13990
vpanic() at vpanic+0x1c7/frame 0xfffffe0025a139f0
panic() at panic+0x43/frame 0xfffffe0025a13a50
userret() at userret+0x745/frame 0xfffffe0025a13ac0
amd64_syscall() at amd64_syscall+0x399/frame 0xfffffe0025a13bf0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0025a13bf0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x28289a, rsp = 0x7fffdff79f08, rbp = 0x7fffdff79f70 ---
KDB: enter: panic
[ thread pid 829 tid 100223 ]
Stopped at      kdb_enter+0x67: movq    $0,0x14a7406(%rip)
db> 
db>