[Freeciv-Dev] Re: core file on civserver, http://civserver.freeciv.org/games/43550

[Thomas Strub <ue80@xxxxxxxxxxxxxxxxxxx>]

Hi

On Wed, Oct 09, 2002 at 01:52:39AM -0700, freeciv@xxxxxxxxxxxxxxxxxxxxx wrote:
> #0  0x0809bd93 in send_attribute_block (pplayer=0x0, pconn=0x80fd7a8)
>     at packets.c:4423
> 4423    if (!pplayer->attribute_block.data)
> (gdb) #0  0x0809bd93 in send_attribute_block (pplayer=0x0, pconn=0x80fd7a8)
>     at packets.c:4423
> #1  0x0804c4df in send_all_info (dest=0x80fd7d8) at srv_main.c:221
> #2  0x0804debd in handle_request_join_game (pconn=0x80fd7a8, req=0x823fe20)
>     at srv_main.c:1338
> #3  0x0804ce51 in handle_packet_input (pconn=0x80fd7a8, packet=0x823fe20, 
>     type=0) at srv_main.c:613

i have no solution for that error but i can reproduce it.

You need 2 civclients, and a game with a huge map and many units or
cities. A plain map isn't enough. (for modemplayers smaller maps should
be enough)

Its good that one of the players is dead so that there is a big amount
of traffic have to sent to the client.

Then connect - disconnect with both clients as fast as you can and
whoops the server will crash after some tries ..

> st
Starting game.
> 
2: Lost connection: pille from localhost (player Hitler).
2: Lost connection: chlodwig from localhost (player Chlodwig).
> 
2: Connection request from chlodwig from localhost
2: chlodwig has client version 1.14.0-beta1
2: chlodwig has joined as player Chlodwig.
> 
2: Connection request from pille from localhost
2: pille has client version 1.14.0-beta1
2: pille has joined as player Hitler.
> 
2: Lost connection: chlodwig from localhost (player Chlodwig).
> 
2: Lost connection: pille from localhost (player Hitler).
> 
2: Connection request from pille from localhost
2: pille has client version 1.14.0-beta1
2: pille has joined as player Hitler.
> 
2: Connection request from chlodwig from localhost
2: chlodwig has client version 1.14.0-beta1
2: chlodwig has joined as player Chlodwig.
> 
2: Lost connection: pille from localhost (player Hitler).
> 
2: Lost connection: chlodwig from localhost (player Chlodwig).
> 
2: Connection request from chlodwig from localhost
2: chlodwig has client version 1.14.0-beta1
2: chlodwig has joined as player Chlodwig.
> 
2: Connection request from pille from localhost
2: pille has client version 1.14.0-beta1
2: pille has joined as player Hitler.
2: Lost connection: pille from localhost (player Hitler).
Segmentation fault (core dumped)

freeciv@hhi214:~/freeciv-1.14.0-beta1$ gdb server/civserver core

#0  0x080bddcd in send_attribute_block (pplayer=0x0, pconn=0x812b138)
    at packets.c:3080
3080      if (!pplayer->attribute_block.data)
(gdb) bt
#0  0x080bddcd in send_attribute_block (pplayer=0x0, pconn=0x812b138)
    at packets.c:3080
#1  0x0804dcfe in send_all_info (dest=0x812b168) at srv_main.c:222
#2  0x080502d2 in handle_request_join_game (pconn=0x812b138,
req=0x82cb148)
    at srv_main.c:1363
#3  0x0804eac2 in handle_packet_input (pconn=0x812b138,
packet=0x82cb148, 
    type=0) at srv_main.c:633

One connect (packet statistics) from a dead player:

2:   [ 1]:      1 packets;       50 bytes total;    50 bytes/packet
2:   [ 2]:      1 packets;        3 bytes total;     3 bytes/packet
2:   [ 3]:      1 packets;        3 bytes total;     3 bytes/packet
2:   [ 5]:    299 packets;     8671 bytes total;    29 bytes/packet
2:   [ 9]:  40000 packets;   360000 bytes total;     9 bytes/packet
2:   [13]:      7 packets;     3205 bytes total;   457 bytes/packet
2:   [14]:      2 packets;     1328 bytes total;   664 bytes/packet
2:   [15]:      1 packets;        6 bytes total;     6 bytes/packet
2:   [16]:     19 packets;     1387 bytes total;    73 bytes/packet
2:   [39]:      1 packets;        7 bytes total;     7 bytes/packet
2:   [51]:      1 packets;        3 bytes total;     3 bytes/packet
2:   [61]:     89 packets;     2632 bytes total;    29 bytes/packet
2:   [62]:     52 packets;    10825 bytes total;   208 bytes/packet
2:   [63]:     68 packets;    16597 bytes total;   244 bytes/packet
2:   [65]:      7 packets;      294 bytes total;    42 bytes/packet
2:   [68]:     12 packets;     1945 bytes total;   162 bytes/packet
2:   [69]:      1 packets;      450 bytes total;   450 bytes/packet
2:   [70]:      6 packets;     7041 bytes total;  1173 bytes/packet
2:   [71]:     80 packets;     2126 bytes total;    26 bytes/packet
2:   [72]:      1 packets;       24 bytes total;    24 bytes/packet
2:   [75]:     62 packets;     7223 bytes total;   116 bytes/packet
2:   [77]:      5 packets;      166 bytes total;    33 bytes/packet
2:   [81]:      1 packets;       16 bytes total;    16 bytes/packet
2:   [82]:      2 packets;       88 bytes total;    44 bytes/packet
2:   [83]:    274 packets;     5577 bytes total;    20 bytes/packet
2:   [90]:      1 packets;       80 bytes total;    80 bytes/packet
2:   [92]:      1 packets;        3 bytes total;     3 bytes/packet
2:   [94]:      3 packets;        9 bytes total;     3 bytes/packet
2:   [95]:      2 packets;        6 bytes total;     3 bytes/packet
2: received 429765 bytes in 41000 packets;average size per packet 10
bytes

Thomas
-- 
Thomas Strub  ***  eMail ue80@xxxxxxxxxxxxxxxxxxx
Nur weil das Aufzeichnen, Kopieren und Schnüffeln bei elektronischem 
Datenverkehr leichter als bei der klassischen Post ist, darf man es nicht
einfach tun.