panic: message could only be dropped in the same thread as the message port thread

[Francois Tigeot <ftigeot@xxxxxxxxxxxx>]

System is Opteron-170, 2GB RAM, em0 NIC.
DragonFly-2.2.0

Messages copied by hand, may be inaccurate.

Here goes the panic message, without function arguments :

---
panic: message could only be dropped in the same thread as the message port
thread

mp_lock = 00000000; cpuid = 0
Trace beginning at frame 0xda8cc890
panic
panic
lwkt_thread_dropmsg
tcp_destroy_timermsg
tcp_close
tcp_drop
tcp_notify
in6_pcbnotify
tcp6_ctlinput
netmsg_pru_ctlinput
netmsg_put_port
lwkt_domsg
so_pre_ctlinput
icmp6_input
ip6_input
netisr_run
ether_demux_oncpu
ether_input_oncpu
ether_input_handler
netmsg_service
netmsg_service_loop
lwkt_exit
Debugger("panic")
---

-- 
Francois Tigeot