URL:
<http://gna.org/bugs/?22359>
Summary: Infinite loop in pick_random_tech
Project: Freeciv
Submitted by: andreasr
Submitted on: Thu 17 Jul 2014 07:16:55 PM UTC
Category: freeciv-web
Severity: 4 - Important
Priority: 5 - Normal
Status: None
Assigned to: None
Originator Email:
Open/Closed: Open
Release:
Discussion Lock: Any
Operating System: GNU/Linux
Planned Release:
_______________________________________________________
Details:
After updating to the latest SVN trunk version of Freeciv in Freeciv-web, many
servers sometimes become stuck in infinite lopps using 100% CPU, in
pick_random_tech it seems.
Current trunk svn revision 25603. This problem leads to an unstable server.
Here are two separate backtraces generated from servers running on 100% CPU:
pick_random_tech (plr=plr@entry=0x28434d0) at techtools.c:842
842 techtools.c: No such file or directory.
(gdb) bt full
#0 pick_random_tech (plr=plr@entry=0x28434d0) at techtools.c:842
i = 78
presearch = 0x8f4c60 <research_array>
chosen = <optimized out>
researchable = 0
__FUNCTION__ = "pick_random_tech"
#1 0x000000000041b9c0 in choose_random_tech (plr=plr@entry=0x28434d0) at
techtools.c:927
research = 0x8f4c60 <research_array>
#2 0x000000000040c258 in end_phase () at srv_main.c:1078
next_tech = <optimized out>
presearch = <optimized out>
MY_i = 84
pplayer = 0x28434d0
#3 srv_running () at srv_main.c:2481
save_counter = 1
i = <optimized out>
is_new_turn = true
skip_mapimg = false
eot_timer = <optimized out>
need_send_pending_events = false
#4 srv_main () at srv_main.c:2950
__FUNCTION__ = "srv_main"
#5 0x0000000000405591 in main (argc=17, argv=0x7fff9fdf5058) at
civserver.c:456
inx = 17
showhelp = <optimized out>
showvers = <optimized out>
option = <optimized out>
__FUNCTION__ = "main"
221 research.c: No such file or directory.
(gdb) bt full
#0 research_invention_state (presearch=presearch@entry=0x8f4c60
<research_array>, tech=tech@entry=75) at research.c:221
No locals.
#1 0x000000000041a502 in pick_random_tech (plr=plr@entry=0x28434d0) at
techtools.c:843
i = 75
presearch = 0x8f4c60 <research_array>
chosen = <optimized out>
researchable = 0
__FUNCTION__ = "pick_random_tech"
#2 0x000000000041b9c0 in choose_random_tech (plr=plr@entry=0x28434d0) at
techtools.c:927
research = 0x8f4c60 <research_array>
#3 0x000000000040c258 in end_phase () at srv_main.c:1078
next_tech = <optimized out>
presearch = <optimized out>
MY_i = 84
pplayer = 0x28434d0
#4 srv_running () at srv_main.c:2481
save_counter = 1
i = <optimized out>
is_new_turn = true
skip_mapimg = false
eot_timer = <optimized out>
need_send_pending_events = false
#5 srv_main () at srv_main.c:2950
__FUNCTION__ = "srv_main"
#6 0x0000000000405591 in main (argc=17, argv=0x7fff9fdf5058) at
civserver.c:456
inx = 17
showhelp = <optimized out>
showvers = <optimized out>
option = <optimized out>
__FUNCTION__ = "main"
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