Follow-up Comment #6, bug #16775 (project freeciv):
I got the following core dump after applying the patch; savegame attached. It
crashs in turn 306.
#0 0x00007f5c8f5eb645 in raise () from /lib64/libc.so.6
No symbol table info available.
#1 0x000000000058513f in fc_assert_fail (file=0x5f7f18 "combat.c",
function=0x5f801d "get_defender",
line=662, assertion=<value optimized out>,
message=0x5f7f90 "get_defender bug: %s %s vs %s %s (total %d units) on
\"%s\" at (%d, %d).")
at log.c:476
level = LOG_FATAL
#2 0x00000000004e8711 in get_defender (attacker=0x1f508e0, ptile=0x21da8f0)
at combat.c:651
bestdef = (struct unit *) 0x0
bestvalue = -99
best_cost = 0
rating_of_best = 0
__FUNCTION__ = "get_defender"
#3 0x00000000004aeb59 in unit_move_handling (punit=0x1f508e0,
pdesttile=0x21da8f0, igzoc=false,
move_diplomat_city=false) at unithand.c:1412
victim = <value optimized out>
pplayer = (struct player *) 0x1fb6df0
pcity = (struct city *) 0x1fb0c30
__FUNCTION__ = "unit_move_handling"
#4 0x000000000043190a in ai_unit_attack (punit=0x1f508e0, ptile=0x21da8f0)
at aitools.c:928
bodyguard = (struct unit *) 0x0
sanity = 249
alive = <value optimized out>
__FUNCTION__ = "ai_unit_attack"
#5 0x000000000043d9ba in adv_unit_execute_path (punit=0x1f508e0,
path=0x1f49620) at advgoto.c:100
plr = <value optimized out>
ptile = (struct tile *) 0x21da8f0
id = 249
is_ai = true
i = 4
__FUNCTION__ = "adv_unit_execute_path"
#6 0x000000000043dd50 in adv_follow_path (punit=0x1f508e0, path=0x1f49620,
ptile=<value optimized out>)
at advgoto.c:57
old_tile = (struct tile *) 0x21da8f0
activity = ACTIVITY_IDLE
alive = true
#7 0x0000000000428b90 in ai_amphibious_goto_constrained (ferry=0x1f508e0,
passenger=0x1f4b660,
ptile=0x21da8f0, parameter=0x7fffd8945ed0) at aiferry.c:577
alive = <value optimized out>
pplayer = <value optimized out>
pfm = (struct pf_map *) 0x1f6c980
path = <value optimized out>
__FUNCTION__ = "ai_amphibious_goto_constrained"
#8 0x0000000000428f80 in aiferry_goto_amphibious (ferry=0x1f508e0,
passenger=0x1f4b660, ptile=0x21da8f0)
at aiferry.c:646
parameter = {land = {start_tile = 0x21e08d8, moves_left_initially =
3, fuel_left_initially = 1,
move_rate = 3, fuel = 1, owner = 0x1fb6df0, uclass = 0xa397e0, unit_flags
= {
vec = "\000\b\000\000\000\001\000"}, omniscience = true, get_MC =
0x59d6a0 <normal_move_unit>,
unknown_MC = 6, get_TB = 0x59cbd0 <no_intermediate_fights>, get_EC =
0x4320f0 <prefer_short_stacks>,
can_invade_tile = 0x574940 <player_can_invade_tile>, get_zoc = 0x582180
<is_my_zoc>,
is_pos_dangerous = 0, get_moves_left_req = 0, get_costs = 0, data =
0x7fffd8946090}, sea = {
start_tile = 0x21e08d8, moves_left_initially = 15, fuel_left_initially =
1, move_rate = 15,
fuel = 1, owner = 0x1fb6df0, uclass = 0xa398a0, unit_flags = {vec =
"\000\000\000\000\b\001\000"},
omniscience = true, get_MC = 0x59d5c0 <sea_overlap_move>, unknown_MC =
6,
get_TB = 0x59cc30 <no_fights>, get_EC = 0x4320f0 <prefer_short_stacks>,
can_invade_tile = 0x574940 <player_can_invade_tile>, get_zoc = 0,
is_pos_dangerous = 0,
get_moves_left_req = 0, get_costs = 0, data = 0x7fffd8946070}, land_scale
= 15, sea_scale = 3,
combined = {start_tile = 0x21e08d8, moves_left_initially = 45,
fuel_left_initially = 1,
move_rate = 45, fuel = 1, owner = 0x1fb6df0, uclass = 0xa398a0,
unit_flags = {
vec = "\000\000\000\000\000\000\000"}, omniscience = true, get_MC =
0x59c220 <amphibious_move>,
unknown_MC = 6, get_TB = 0x59c170 <amphibious_behaviour>, get_EC =
0x59c0b0 <amphibious_extra_cost>,
can_invade_tile = 0x574940 <player_can_invade_tile>, get_zoc = 0,
is_pos_dangerous = 0x59c010 <amphibious_is_pos_dangerous>,
get_moves_left_req = 0, get_costs = 0,
data = 0x7fffd8945ed0}}
land_risk_cost = {base_value = 60, fearfulness = 1820.4444444444443,
enemy_zoc_cost = 1310720}
sea_risk_cost = {base_value = 50, fearfulness = 364.0888888888889,
enemy_zoc_cost = 1310720}
#9 0x000000000042ae1a in aiferry_gobyboat (pplayer=0x1fb6df0,
punit=0x1f4b660, dest_tile=0x21da8f0)
at aiferry.c:771
bodyguard = (struct unit *) 0x0
ferryboat = (struct unit *) 0x1f508e0
__FUNCTION__ = "aiferry_gobyboat"
#10 0x000000000043319b in ai_gothere (pplayer=0x1fb6df0, punit=0x1f4b660,
dest_tile=0x21da8f0)
at aitools.c:285
__FUNCTION__ = "ai_gothere"
#11 0x00000000004b7337 in ai_military_attack (pplayer=0x1fb6df0,
punit=0x1f4b660) at aiunit.c:1820
dest_tile = (struct tile *) 0x21da8f0
id = 7104
ct = 10
pcity = <value optimized out>
start_tile = (struct tile *) 0x21e08d8
__FUNCTION__ = "ai_military_attack"
#12 0x00000000004b8bb7 in ai_manage_military (pplayer=0x1fb6df0,
punit=0x1f4b660) at aiunit.c:2145
id = 7104
__FUNCTION__ = "ai_manage_military"
#13 0x00000000004badd7 in ai_manage_unit (pplayer=0x1fb6df0, punit=0x1f4b660)
at aiunit.c:2330
bodyguard = (struct unit *) 0x0
is_ferry = <value optimized out>
__FUNCTION__ = "ai_manage_unit"
#14 0x00000000004295ef in ai_manage_ferryboat (pplayer=0x1fb6df0,
punit=0x1f508e0) at aiferry.c:1049
boss = (struct unit *) 0x1f4b660
ptile = <value optimized out>
pcity = <value optimized out>
sanity = 249
unit_data = (struct unit_ai *) 0x1f509f0
__FUNCTION__ = "ai_manage_ferryboat"
#15 0x00000000004baeca in ai_manage_unit (pplayer=0x1fb6df0, punit=0x1f508e0)
at aiunit.c:2310
bodyguard = (struct unit *) 0x0
is_ferry = true
__FUNCTION__ = "ai_manage_unit"
#16 0x00000000004bb8dd in ai_manage_units (pplayer=0x1fb6df0) at
aiunit.c:2436
punit = (struct unit *) 0x1f508e0
punit_index = 185
punit_size = 200
__FUNCTION__ = "ai_manage_units"
#17 0x0000000000436209 in ai_do_first_activities (pplayer=0x1fb6df0) at
aihand.c:482
No locals.
#18 0x000000000040d97d in srv_main () at srv_main.c:684
__FUNCTION__ = "srv_main"
#19 0x0000000000404819 in main (argc=4, argv=0x7fffd8946bd8) at
civserver.c:372
inx = 4
showhelp = false
showvers = false
option = <value optimized out>
__FUNCTION__ = "main"
(file #10638)
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