panic: tcp_outpput
anStopped at     db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*192353  33719  32767        0x10  0x4000000    0  syz-executor.0
 365016  84844      0     0x14000      0x200    1  reaper
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8257e05d) at panic+0x177 sys/kern/subr_prf.c:198
tcp_output(ffff800000d05870) at tcp_output+0x2cd2 sys/netinet/tcp_output.c:727
tcclient_loop: send disconnect: Broken pipe