[Freeciv-Dev] Re: core file on civserver, http://civserver.freeciv.org/games/253417

[Raimar Falke <i-freeciv-lists@xxxxxxxxxxxxx>]

On Sat, Nov 29, 2003 at 07:40:37AM -0800, freeciv@xxxxxxxxxxxxxxxxxxxxx wrote:
> # examining core.25625 in /games/253417/. ...
> # using $FREECIV_PATH 
> /home/freeciv/.freeciv/code/installed/cvs/HEAD/2003-11-29_00.00+ourown-post-1.14.0/share/freeciv
> # running: (echo bt; echo quit; exec yes '') | gdb  
> /home/freeciv/.freeciv/code/installed/cvs/HEAD/2003-11-29_00.00+ourown-post-1.14.0/share/freeciv/../../bin/civserver
>  core.25625
> GNU gdb Red Hat Linux (5.2-2)
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i386-redhat-linux"...
> Core was generated by 
> `/home/freeciv/.freeciv/code/installed/cvs/HEAD/2003-11-29_00.00+ourown-post-1.1'.
> Program terminated with signal 6, Aborted.
> Reading symbols from /lib/libm.so.6...done.
> Loaded symbols for /lib/libm.so.6
> Reading symbols from /usr/lib/libz.so.1...done.
> Loaded symbols for /usr/lib/libz.so.1
> Reading symbols from /lib/libc.so.6...done.
> Loaded symbols for /lib/libc.so.6
> Reading symbols from /lib/ld-linux.so.2...done.
> Loaded symbols for /lib/ld-linux.so.2
> Reading symbols from /lib/libnss_files.so.2...done.
> Loaded symbols for /lib/libnss_files.so.2
> Reading symbols from /lib/libnss_nisplus.so.2...done.
> Loaded symbols for /lib/libnss_nisplus.so.2
> Reading symbols from /lib/libnsl.so.1...done.
> Loaded symbols for /lib/libnsl.so.1
> Reading symbols from /lib/libnss_dns.so.2...done.
> Loaded symbols for /lib/libnss_dns.so.2
> Reading symbols from /lib/libresolv.so.2...done.
> Loaded symbols for /lib/libresolv.so.2
> #0  0x400750a1 in kill () from /lib/libc.so.6
> (gdb) #0  0x400750a1 in kill () from /lib/libc.so.6
> #1  0x40074e99 in raise () from /lib/libc.so.6
> #2  0x40076364 in abort () from /lib/libc.so.6
> #3  0x4006f15d in __assert_fail () from /lib/libc.so.6
> #4  0x0804ab6a in real_die () at shared.c:666
> #5  0x080a2223 in receive_packet_processing_started (pc=0x812bca0, 
>     type=PACKET_PROCESSING_STARTED) at packets_gen.c:730
> #6  0x080a0e70 in get_packet_from_connection (pc=0x812bca0, ptype=0xbfffed00, 
>     presult=0xbfffed04) at packets.c:474
> #7  0x0808d99f in sniff_packets () at sernet.c:583
> #8  0x0804e805 in srv_loop () at srv_main.c:1477
> #9  0x0804e749 in srv_main () at srv_main.c:1439
> #10 0x08049c70 in main (argc=9, argv=0xbffff184) at civserver.c:157
> #11 0x400641c4 in __libc_start_main () from /lib/libc.so.6
> (gdb) 

The problem is that the server received a PACKET_PROCESSING_STARTED
(number 0) but the client should never send such packet.

I suspect that an old client is connecting to a new server and the
join packet of the old client also has number 0.

Ideas for fixes welcome.

        Raimar

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