panic: assertion "(state->rxcmd & DMSGF_DELETE) == 0" failed in kdmsg_state_msgrx at /usr/src/sys/kern/kern_dmsg.c:1076
cpuid = 5
Trace beginning at frame 0xfffff80117f5b940
kdmsg_msg_receive_handling() at kdmsg_msg_receive_handling+0xb39 0xffffffff80636d39 
kdmsg_msg_receive_handling() at kdmsg_msg_receive_handling+0xb39 0xffffffff80636d39 
kdmsg_iocom_thread_rd() at kdmsg_iocom_thread_rd+0x98 0xffffffff806380e8 
Debugger("panic")

CPU5 stopping CPUs: 0x0000001f
 stopped
Stopped at      Debugger+0x7c:  movb    $0,0xbdaf09(%rip)
db>