#42480: Lost connection to server: decoding error
Open Date: 2021-06-07 04:23
Last Update: 2021-06-07 06:36
URL for this Ticket:
https://osdn.net//projects/freeciv/ticket/42480
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Last Changes/Comment on this Ticket:
2021-06-07 06:36 Updated by: bard
Comment:
I was able to start one game with 50 players (the rest default options), and I annotated the random seeds:
game random_seed=224501204
map random_seed=1872074484
When I use these 2 custom seeds to start a new game with 50 players there is no crash (5 times in a row). But I did some more tests with unexpected results:
* When I use this custom MAP seed and a random GAME seed, there are crashes as usual (I have never been able to start 5 times in a row without crashes).
* When I use this custom GAME seed and a random MAP seed there are no crashes (5 times in a row), even when I change the number of players (I tested 49 and 52).
My crashes are related to the game seed, for sure.
I have verified that I can not start a game with 50 players and game seed = 1 (the rest default options)... It is a sure crash.
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Ticket Status:
Reporter: bard
Owner: (None)
Type: Bugs
Status: Open
Priority: 5 - Medium
MileStone: (None)
Component: Server
Severity: 5 - Medium
Resolution: None
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Ticket details:
I'm testing 3.0.0-beta2+ (compiled in kubuntu 20.04, up to date)
When I try to start a new game from the client, it sometimes (looks random) get an error from the server, and goes back to the initial menu (welcome screen).
If I try the same again it uses to end working after 2 or 3 attempts. The more players in the game (or the larger the map, I'm not sure), it seems the higher the chances to fail.
It happens with the default ruleset and default options (civ2civ3, hexemplio), and also when I chose another rulesets or tilesets (I have tried classic and civ2civ3_earth).
These are the backtraces In debug mode (I have tested gtk2 and gtk3.22):
3: Uncompressing of the packet stream failed. The connection will be closed now.
1: Lost connection to server: decoding error.
2: Backtrace:
2: 0: ./client/freeciv-gtk3.22(backtrace_print+0x3b) [0x563c48db0e0b]
2: 1: ./client/freeciv-gtk3.22(vdo_log+0xad) [0x563c48db68ed]
2: 2: ./client/freeciv-gtk3.22(do_log+0xb6) [0x563c48db69d6]
2: 3: ./client/freeciv-gtk3.22(+0x735c7) [0x563c48ba35c7]
2: 4: ./client/freeciv-gtk3.22(get_packet_from_connection_raw+0x41d) [0x563c48dde5bd]
2: 5: ./client/freeciv-gtk3.22(input_from_server+0xec) [0x563c48ba3d7c]
2: 6: ./client/freeciv-gtk3.22(+0x67fa4) [0x563c48b97fa4]
2: 7: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x14e) [0x7f2cd022004e]
2: 8: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x52400) [0x7f2cd0220400]
2: 9: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0x83) [0x7f2cd02206f3]
2: 10: /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(gtk_main+0x7d) [0x7f2cd0a3937d]
2: 11: ./client/freeciv-gtk3.22(ui_main+0x18f4) [0x563c48b9a7a4]
2: 12: ./client/freeciv-gtk3.22(client_main+0x3f8) [0x563c48b9d0b8]
2: 13: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f2ccffde0b3]
2: 14: ./client/freeciv-gtk3.22(_start+0x2e) [0x563c48b976fe]
2: Loading tileset "hexemplio".
1: Lost connection to server: decoding error.
2: Backtrace:
2: 0: ./client/freeciv-gtk2(backtrace_print+0x3b) [0x55ff569a32ab]
2: 1: ./client/freeciv-gtk2(vdo_log+0xad) [0x55ff569a8d8d]
2: 2: ./client/freeciv-gtk2(do_log+0xb6) [0x55ff569a8e76]
2: 3: ./client/freeciv-gtk2(+0x71a37) [0x55ff56795a37]
2: 4: ./client/freeciv-gtk2(get_packet_from_connection_raw+0x41d) [0x55ff569d0a5d]
2: 5: ./client/freeciv-gtk2(input_from_server+0xec) [0x55ff567961ec]
2: 6: ./client/freeciv-gtk2(+0x682c4) [0x55ff5678c2c4]
2: 7: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x14e) [0x7f1e1c57d04e]
2: 8: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x52400) [0x7f1e1c57d400]
2: 9: /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_loop_run+0x83) [0x7f1e1c57d6f3]
2: 10: /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0(gtk_main+0xc2) [0x7f1e1c923092]
2: 11: ./client/freeciv-gtk2(ui_main+0x54e) [0x55ff5678d57e]
2: 12: ./client/freeciv-gtk2(client_main+0x3f8) [0x55ff5678f528]
2: 13: /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f1e1c33d0b3]
2: 14: ./client/freeciv-gtk2(_start+0x2e) [0x55ff5678a3be]
Let me know what else could I test to give more useful info.
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