kill -HUP BUG

[刘桂源(研六 福州)]

HI,
         Master!
         After kill ¨CHUP the pid of nginx twice, nginx is Segmentation fault (core dumped)
Here is the gdb info:
Program received signal SIGSEGV, Segmentation fault.
0x0040eb29 in ngx_clean_old_cycles (ev=0x570e10) at src/core/ngx_cycle.c:1349
1349                if (cycle[i]->connections[n].fd != (ngx_socket_t) -1) {
(gdb) bt
#0  0x0040eb29 in ngx_clean_old_cycles (ev=0x570e10) at src/core/ngx_cycle.c:1349
#1  0x004159a9 in ngx_event_expire_timers () at src/event/ngx_event_timer.c:150
#2  0x0041492a in ngx_process_events_and_timers (cycle=0x100485c8) at src/event/ngx_event.c:262
#3  0x0041a9a8 in ngx_single_process_cycle (cycle=0x10020c78)
    at src/os/unix/ngx_process_cycle.c:312
#4  0x004014a8 in main (argc=1, argv=0x10011e58) at src/core/nginx.c:409

Is it kind of bug?
This proble exist in all versions of nginx and different OS.
                                                        Guiyuan Liu
                                                FuZhou FuJian China

Best wishes!

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