Logged In: YES 
user_id=1398779

2005/12/06 :
I am not the original bug submitter but as I stumbled upon
the same problem, I thought it would be useful to give some
clues.

I ran wideland build9-7 on Debian unstable (package from
Martin Quinson's page, downloaded on 2005/12/06).

Kernel : 2.6.11 (on 32 bits mode)
CPU : AMD Athlon64 3200
RAM : 1 GB
GPU : GeForce 2 MX 400 with nVidia close-source driver

It happened in the Tutorial II campaign.
I had already build mines (Iron Ore, Coal, Granite) +  one farm.
I was building a Tavern, a Gamemaster hut, a quarry in the
north-eastern part of the map (north of the mountain), a
Well, a Lumberjack, a Bakery and a second Farm.

Here is the console output of the game, till the crash (at
the bottom) :
=================================================
(beginning is missing)
MO(853): [road]: Go pick up item from 0
MO(853): Bob::walk_to_index: Move from 2 to 0.
MO(2115): Bob::walk_to_index: Move from 0 to 3.
MO(803): [road]: Go pick up item from 1
MO(803): Bob::walk_to_index: Move from 0 to 2.
MO(874): Bob::walk_to_index: Move from 3 to 2.
MO(2418): [transport]: pick up from flag.
WareList: Wanting to remove 1/46 wares of type (34)
MO(2418): Bob::walk_to_index: Move from 0 to 2.
MO(2336): [road]: Idle.
MO(929): [program]: plant#6
MO(929):   Return(1)
MO(929): start_task_return
MO(929): pushed task
MO(929): done
MO(929): [return]: Move to building's flag
MO(1311): [road]: Idle.
MO(1615): [road]: Idle.
MO(1327): [transport]: pick up from flag.
WareList: Wanting to remove 1/169 wares of type (35)
MO(1327): Bob::walk_to_index: Move from 0 to 2.
WareList: Wanting to remove 1/10 wares of type (28)
TI(2449): go to next flag
MO(845): Flag::call_carrier(2449): Call
MO(1255): notify_ware(0): already acked 0
MO(836): [transport]: back to idle.
MO(836): find_pending_item: flag 1
MO(836): [road]: delay (acked for 1)
TW(2473): location flag == destination flag
MO(2473): [transfer]: on road 2193, to flag 2191, index is 0
MO(2473): [transfer]: arrive at flag 2191
TW(2473): location flag == destination flag
MO(2473): [transfer]: move from flag to building
MO(836): [road]: Go pick up item from 1
MO(836): [transport]: pick up from flag.
WareList: Wanting to remove 1/35 wares of type (15)
MO(2413): [road]: Idle.
MO(836): Bob::walk_to_index: Move from 2 to 0.
TW(2505): trim start flag (road)
TW(2505): move to first flag
MO(2505): [transfer]: on road 828, to flag 845, index is 2
MO(2505): [transfer]: arrive at flag 845
TW(2505): go to next flag
MO(2505): [transfer]: move to next flag via road 1254
MO(1908): Bob::walk_to_index: Move from 2 to 1.
WareList: Wanting to remove 1/46 wares of type (34)
TI(2358): go to next flag
MO(1538): Flag::call_carrier(2358): Call
MO(1518): notify_ware(1)
MO(1540): [transport]: back to idle.
MO(1540): Bob::walk_to_index: Move from 0 to 1.
MO(1518): [road]: Go pick up item from 1
MO(1518): Bob::walk_to_index: Move from 1 to 2.
MO(1255): [transport]: pick up from flag.
WareList: Wanting to remove 1/169 wares of type (35)
MO(1255): Bob::walk_to_index: Move from 0 to 2.
WareList: Wanting to remove 1/169 wares of type (35)
TI(2401): go to next flag
MO(1275): Flag::call_carrier(2401): Call
MO(1311): notify_ware(1)
MO(1316): [transport]: back to idle.
MO(1316): find_pending_item: flag 0
MO(1316): [road]: delay (acked for 0)
MO(1311): [road]: Go pick up item from 1
MO(1311): Bob::walk_to_index: Move from 1 to 2.
MO(767): [transport]: Move into building.
MO(1316): [road]: Go pick up item from 0
MO(1316): [transport]: pick up from flag.
WareList: Wanting to remove 1/46 wares of type (34)
MO(1316): Bob::walk_to_index: Move from 0 to 3.
TW(871): trim start flag (road)
TW(871): move to first flag
MO(871): [transfer]: on road 766, to flag 710, index is 2
MO(871): [transfer]: arrive at flag 710
TW(871): location flag == destination flag
MO(871): [transfer]: move from flag to building
MO(1258): [transport]: pick up from flag.
WareList: Wanting to remove 1/10 wares of type (28)
MO(1258): Bob::walk_to_index: Move from 0 to 2.
MO(1540): [road]: Idle.
WareList: Wanting to remove 1/169 wares of type (35)
TI(2488): go to next flag
MO(1608): Flag::call_carrier(2488): Call
MO(1615): notify_ware(1)
MO(1616): [transport]: back to idle.
MO(1616): Bob::walk_to_index: Move from 0 to 1.
MO(1615): [road]: Go pick up item from 1
MO(1615): Bob::walk_to_index: Move from 1 to 2.
WareList: Wanting to remove 1/169 wares of type (35)
TI(2489): go to next flag
MO(1878): Flag::call_carrier(2489): Call
MO(2336): notify_ware(0)
MO(1880): [transport]: back to idle.
MO(1880): Bob::walk_to_index: Move from 0 to 1.
MO(2336): [road]: Go pick up item from 0
MO(2336): Bob::walk_to_index: Move from 1 to 0.
MO(1617): [road]: Idle.
WareList: Wanting to remove 1/169 wares of type (35)
TI(2502): go to next flag
MO(845): Flag::call_carrier(2502): Call
MO(1071): [transport]: back to idle.
MO(1071): Bob::walk_to_index: Move from 2 to 1.
MO(1908): [road]: Idle.
TW(2260): trim start flag (road)
TW(2260): move to first flag
MO(2260): [transfer]: on road 1254, to flag 1252, index is 2
MO(2260): [transfer]: arrive at flag 1252
TW(2260): go to next flag
MO(2260): [transfer]: move to next flag via road 1257
TW(2473): location == destination
MO(2473): [transfer]: Success
<<Transfer::has_finished()
MO(2473): [buildingwork]: Nothing to be done.
MO(2472): stat: lastOk: 0% percOk: 0% trend: =
MO(2472): ProductionSite: program start: work
MO(2472): PSITE: program work#0
MO(2472):   Sleep(35000)
WareList: Wanting to remove 1/169 wares of type (35)
TI(2477): go to next flag
MO(1365): Flag::call_carrier(2477): Call
MO(1374): [transport]: back to idle.
MO(1374): Bob::walk_to_index: Move from 2 to 1.
WareList: Wanting to remove 1/169 wares of type (35)
MO(2004): [return]: Drop item on flag
TI(2512): go to next flag
MO(1878): Flag::call_carrier(2512): Call
MO(1880): notify_ware(0)
MO(2004): [return]: Move back into building
MO(929): [return]: Move back into building
MO(1518): [transport]: pick up from flag.
WareList: Wanting to remove 1/46 wares of type (34)
MO(1518): Bob::walk_to_index: Move from 2 to 0.
MO(1311): [transport]: pick up from flag.
WareList: Wanting to remove 1/169 wares of type (35)
MO(1311): Bob::walk_to_index: Move from 2 to 0.
WareList: Wanting to remove 1/169 wares of type (35)
MO(767): [transport]: Arrived in building.
TI(2468): location == destination
WareList: Wanting to remove 1/169 wares of type (35)
<<Transfer::has_finished()
MO(767): [transport]: Move out of building.
MO(1219): [transport]: pick up from flag.
WareList: Wanting to remove 1/169 wares of type (35)
MO(1219): Bob::walk_to_index: Move from 3 to 1.
MO(1101): [program]: chop#3
MO(1101):   Object(fall)
MO(1101):   object(2387): type = 2
WareList: Wanting to remove 1/169 wares of type (35)
MO(1094): [return]: Drop item on flag
TI(2513): go to next flag
MO(868): Flag::call_carrier(2513): Call
MO(1101): [program]: chop#4
MO(1101):   Animation(350, 2000)
MO(1094): [return]: Move back into building
MO(891): PSITE: program work#1
MO(891):   Checking(trunk)
MO(891):     okay
MO(891):   Check done!
MO(891): PSITE: program work#2
MO(891):   Consuming(trunk)
WareList: Wanting to remove 2/169 wares of type (35)
0x8afe230: add_request(0x8a5d4f0) for ware Trunk, target is 891
MO(891):   Consume done!
MO(1071): [road]: Idle.
MO(891): PSITE: program work#3
MO(891):   Animate(104,24000)
REQ: 891 (4178173) <- 845 (ware 35), priority 169671
HANDLE: 891 -> 845, ware 35, priority 169671
Request: start item transfer for 35
TI(2502): go to next flag
MO(845): Flag::call_carrier(2502): Call
  request is still around, reschedule timer
  nexttimer: 200
MO(2336): [transport]: pick up from flag.
WareList: Wanting to remove 1/167 wares of type (35)
MO(2336): Bob::walk_to_index: Move from 0 to 2.
REQ: 891 (4178173) <- 851 (ware 35), priority 184479
HANDLE: 891 -> 851, ware 35, priority 184479
Request: start item transfer for 35
TI(2493): go to next flag
MO(851): Flag::call_carrier(2493): Call
MO(803): notify_ware(1): already acked 1
TW(871): location == destination
MO(871): [transfer]: Success
<<Transfer::has_finished()
WareList: Wanting to remove 1/10 wares of type (3)
MO(871): schedule reget auto task
TW(2505): trim start flag (road)
TW(2505): move to first flag
MO(2505): [transfer]: on road 1254, to flag 1252, index is 2
MO(2505): [transfer]: arrive at flag 1252
TW(2505): go to next flag
MO(2505): [transfer]: move to next flag via road 1257
WareList: Wanting to remove 1/167 wares of type (35)
TI(2403): go to next flag
MO(1434): Flag::call_carrier(2403): Call
MO(1540): notify_ware(1)
MO(1440): [transport]: back to idle.
MO(1440): find_pending_item: flag 0
MO(1440): [road]: delay (acked for 0)
MO(1616): [road]: Idle.
MO(1540): [road]: Go pick up item from 1
MO(1540): Bob::walk_to_index: Move from 1 to 2.
MO(1440): [road]: Go pick up item from 0
MO(1440): Bob::walk_to_index: Move from 3 to 0.
WareList: Wanting to remove 1/167 wares of type (35)
TI(2347): go to next flag
MO(1252): Flag::call_carrier(2347): Call
MO(1255): [transport]: back to idle.
MO(1255): find_pending_item: flag 0
MO(1255): [road]: delay (acked for 0)
WareList: Wanting to remove 1/35 wares of type (15)
TI(2500): go to next flag
MO(799): Flag::call_carrier(2500): Call
MO(803): notify_ware(0): already acked 1
MO(836): [transport]: back to idle.
MO(836): find_pending_item: flag 0
MO(836): [road]: delay (acked for 0)
MO(1255): [road]: Go pick up item from 0
MO(1255): Bob::walk_to_index: Move from 2 to 0.
MO(836): [road]: Go pick up item from 0
MO(836): [transport]: pick up from flag.
WareList: Wanting to remove 1/26 wares of type (38)
MO(836): Bob::walk_to_index: Move from 0 to 2.
MO(1880): [road]: delay (acked for 0)
MO(1880): [road]: Go pick up item from 0
MO(1880): Bob::walk_to_index: Move from 1 to 0.
MO(929): [return]: Back home.
MO(929): [program]: plant#7
MO(929):   End of program
MO(929): [buildingwork]: Nothing to be done.
MO(928): ProductionSite: program ends (success)
MO(803): [transport]: pick up from flag.
WareList: Wanting to remove 1/167 wares of type (35)
MO(803): Bob::walk_to_index: Move from 2 to 0.
MO(928): ProductionSite: program start: work
MO(928): PSITE: program work#0
MO(928):   Sleep(16000)
MO(2418): [transport]: Move into building.
MO(1374): [road]: Idle.
WareList: Wanting to remove 1/167 wares of type (35)
TI(2467): go to next flag
MO(1325): Flag::call_carrier(2467): Call
MO(1374): notify_ware(0)
MO(1327): [transport]: back to idle.
MO(1327): Bob::walk_to_index: Move from 2 to 1.
MO(1374): [road]: Go pick up item from 0
MO(1374): Bob::walk_to_index: Move from 1 to 0.
MO(853): [transport]: pick up from flag.
MO(853): [transport]: Nothing on flag.
MO(853): Bob::walk_to_index: Move from 0 to 1.
MO(1749): [program]: plant#2
MO(1749):   Walk(1)
MO(1749):   coords(22,29)
MO(1749):   reached
MO(1749): [program]: plant#3
MO(1749):   Animation(429, 500)
MO(1540): [transport]: pick up from flag.
WareList: Wanting to remove 1/167 wares of type (35)
MO(1540): Bob::walk_to_index: Move from 2 to 0.
MO(1094): [return]: Back home.
MO(1094): [program]: chop#7
MO(1094):   End of program
MO(1094): [buildingwork]: Nothing to be done.
MO(1093): ProductionSite: program ends (success)
MO(2004): [return]: Back home.
MO(2004): [program]: chop#7
MO(2004):   End of program
MO(2004): [buildingwork]: Nothing to be done.
MO(2003): ProductionSite: program ends (success)
MO(2003): stat: lastOk: 100% percOk: 100% trend: =
MO(1093): ProductionSite: program start: work
MO(1093): PSITE: program work#0
MO(1093):   Sleep(25000)
MO(2003): ProductionSite: program start: work
MO(2003): PSITE: program work#0
MO(2003):   Sleep(25000)
MO(767): find_pending_item: flag 0
MO(767): [road]: delay (acked for 0)
MO(767): [road]: Go pick up item from 0
MO(767): Bob::walk_to_index: Move from 2 to 0.
WareList: Wanting to remove 1/167 wares of type (35)
TI(2316): go to next flag
MO(2124): Flag::call_carrier(2316): Call
MO(2128): notify_ware(0)
MO(2115): [transport]: back to idle.
MO(2115): Bob::walk_to_index: Move from 3 to 1.
MO(2128): [road]: Go pick up item from 0
MO(2128): Bob::walk_to_index: Move from 1 to 0.
MO(1749): [program]: plant#4
MO(1749):   Plant: 45 at 22,29
MO(1749): [program]: plant#5
MO(1749):   Animation(429, 500)
MO(1101): [program]: chop#5
MO(1101):   CreateItem(trunk)
MO(1101): [program]: chop#6
MO(1101):   Return(1)
MO(1101): start_task_return
MO(1101): pushed task
MO(1101): done
MO(1101): [return]: Move to building's flag
REQ: 709 (0) <- 1100 (ware 35), priority 0
HANDLE: 709 -> 1100, ware 35, priority 0
Request: start item transfer for 35
  request is still around, reschedule timer
  nexttimer: 200
MO(1615): [transport]: pick up from flag.
WareList: Wanting to remove 1/168 wares of type (35)
MO(1615): Bob::walk_to_index: Move from 2 to 0.
MO(853): [road]: Idle.
MO(1749): [program]: plant#6
MO(1749):   Return(1)
MO(1749): start_task_return
MO(1749): pushed task
MO(1749): done
MO(1749): [return]: Move to building's flag
WareList: Wanting to remove 1/10 wares of type (28)
TI(2446): go to next flag
MO(823): Flag::call_carrier(2446): Call
MO(1258): [transport]: back to idle.
MO(1258): find_pending_item: flag 0
MO(1258): [road]: delay (acked for 0)
MO(1880): [transport]: pick up from flag.
WareList: Wanting to remove 1/168 wares of type (35)
MO(1880): Bob::walk_to_index: Move from 0 to 2.
MO(1258): [road]: Go pick up item from 0
MO(1258): Bob::walk_to_index: Move from 2 to 0.
MO(1327): [road]: Idle.
MO(1374): [transport]: pick up from flag.
WareList: Wanting to remove 1/168 wares of type (35)
MO(1374): Bob::walk_to_index: Move from 0 to 2.
MO(1333): [program]: chop#3
MO(1333):   Object(fall)
MO(1333):   object(2355): type = 2
MO(1333): [program]: chop#4
MO(1333):   Animation(350, 2000)
MO(2292): [program]: chop#3
MO(2292):   Object(fall)
MO(2292):   object(2301): type = 2
WareList: Wanting to remove 1/46 wares of type (34)
MO(2418): [transport]: Arrived in building.
TI(2332): location == destination
WareList: Wanting to remove 1/46 wares of type (34)
<<Transfer::has_finished()
MO(2292): [program]: chop#4
MO(2292):   Animation(350, 2000)
MO(2418): [transport]: Move out of building.
TW(2260): trim start flag (road)
TW(2260): move to first flag
MO(2260): [transfer]: on road 1257, to flag 823, index is 2
MO(2260): [transfer]: arrive at flag 823
TW(2260): go to next flag
MO(2260): [transfer]: move to next flag via road 1218
MO(2128): [transport]: pick up from flag.
WareList: Wanting to remove 1/168 wares of type (35)
MO(2128): Bob::walk_to_index: Move from 0 to 2.
WareList: Wanting to remove 1/168 wares of type (35)
TI(2401): go to next flag
MO(1279): Flag::call_carrier(2401): Call
MO(1327): notify_ware(0)
MO(1311): [transport]: back to idle.
MO(1311): Bob::walk_to_index: Move from 0 to 1.
MO(1327): [road]: Go pick up item from 0
MO(1327): Bob::walk_to_index: Move from 1 to 0.
WareList: Wanting to remove 1/26 wares of type (38)
TI(2508): go to next flag
MO(1874): Flag::call_carrier(2508): Call
MO(1882): notify_ware(1)
MO(2262): [transport]: back to idle.
MO(2262): Bob::walk_to_index: Move from 0 to 2.
MO(1882): [road]: Go pick up item from 1
MO(1882): Bob::walk_to_index: Move from 1 to 2.
MO(1568): PSITE: program plant#2
MO(1568):   Worker(plant)
MO(1569): [program]: plant#0
MO(1569):   SetDescription: tribe:fern0
MO(1569): [program]: plant#1
MO(1569):   selected 18,41
MO(1569): [program]: plant#2
MO(1569):   Walk(1)
MO(1568): Building::leave_check_and_wait
MO(1568): Building::leave_check_and_wait: Leave now
MO(1569): [leavebuilding]: Leave (stay in location)
WareList: Wanting to remove 1/168 wares of type (35)
TI(2488): go to next flag
MO(1599): Flag::call_carrier(2488): Call
MO(1880): notify_ware(1)
MO(1615): [transport]: back to idle.
MO(1615): Bob::walk_to_index: Move from 0 to 1.
WareList: Wanting to remove 1/46 wares of type (34)
TI(2358): go to next flag
MO(1485): Flag::call_carrier(2358): Call
MO(1617): notify_ware(0)
MO(1518): [transport]: back to idle.
MO(1518): Bob::walk_to_index: Move from 0 to 1.
MO(1617): [road]: Go pick up item from 0
MO(1617): Bob::walk_to_index: Move from 2 to 0.
TW(2505): trim start flag (road)
TW(2505): move to first flag
MO(2505): [transfer]: on road 1257, to flag 823, index is 2
MO(2505): [transfer]: arrive at flag 823
TW(2505): go to next flag
MO(2505): [transfer]: move to next flag via road 1218
WareList: Wanting to remove 1/168 wares of type (35)
TI(2451): go to next flag
MO(799): Flag::call_carrier(2451): Call
MO(803): [transport]: back to idle.
MO(803): find_pending_item: flag 0
MO(803): [road]: delay (acked for 0)
WareList: Wanting to remove 1/168 wares of type (35)
MO(1216): Flag: wake up one from wait queue.
MO(1219): [waitforcapacity]: Wake up: flag capacity.
MO(1219): Bob::walk_to_index: Move from 1 to 0.
WareList: Wanting to remove 1/46 wares of type (34)
TI(2503): go to next flag
MO(1216): Flag::call_carrier(2503): Call
MO(1219): notify_ware(0)
MO(1316): [transport]: return trip.
MO(1316): Bob::walk_to_index: Move from 3 to 0.
MO(803): [road]: Go pick up item from 0
MO(803): [transport]: pick up from flag.
WareList: Wanting to remove 1/35 wares of type (15)
MO(803): Bob::walk_to_index: Move from 0 to 2.
WareList: Wanting to remove 1/168 wares of type (35)
TI(2489): go to next flag
MO(2334): Flag::call_carrier(2489): Call
MO(2115): notify_ware(0)
MO(2336): [transport]: back to idle.
MO(2336): Bob::walk_to_index: Move from 2 to 1.
MO(2418): Bob::walk_to_index: Move from 2 to 1.
WareList: Wanting to remove 1/26 wares of type (38)
TI(2484): go to next flag
MO(845): Flag::call_carrier(2484): Call
MO(1255): notify_ware(0): already acked 0
MO(836): [transport]: back to idle.
MO(836): find_pending_item: flag 0
MO(836): [road]: delay (acked for 0)
MO(1333): [program]: chop#5
MO(1333):   CreateItem(trunk)
MO(836): [road]: Go pick up item from 0
MO(836): Bob::walk_to_index: Move from 2 to 0.
MO(1333): [program]: chop#6
MO(1333):   Return(1)
MO(1333): start_task_return
MO(1333): pushed task
MO(1333): done
MO(1333): [return]: Move to building's flag
MO(2292): [program]: chop#5
MO(2292):   CreateItem(trunk)
MO(2292): [program]: chop#6
MO(2292):   Return(1)
MO(2292): start_task_return
MO(2292): pushed task
MO(2292): done
MO(2292): [return]: Move to building's flag
REQ: 709 (0) <- 1332 (ware 35), priority 0
HANDLE: 709 -> 1332, ware 35, priority 0
Request: start item transfer for 35
  request is still around, reschedule timer
  nexttimer: 200
MO(1311): [road]: Idle.
MO(1518): [road]: Idle.
MO(767): [transport]: pick up from flag.
WareList: Wanting to remove 1/49 wares of type (4)
MO(765): Flag: wake up one from wait queue.
MO(762): [waitforcapacity]: Wake up: flag capacity.
MO(762): Bob::walk_to_index: Move from 1 to 2.
MO(767): Bob::walk_to_index: Move from 0 to 2.
REQ: 709 (0) <- 2291 (ware 35), priority 0
HANDLE: 709 -> 2291, ware 35, priority 0
Request: start item transfer for 35
  request is still around, reschedule timer
  nexttimer: 200
MO(1000): PSITE: program work#1
MO(1000):   Animate(153,20000)
MO(1327): [transport]: pick up from flag.
WareList: Wanting to remove 1/170 wares of type (35)
MO(1327): Bob::walk_to_index: Move from 0 to 2.
MO(1882): [transport]: pick up from flag.
WareList: Wanting to remove 1/26 wares of type (38)
MO(2150): ConstructionSite::check_work: step 7 completed
MO(2257): [buildingwork]: Nothing to be done.
Setting economy for object 0x8afc0c0, which is a 4 to (nil)
WareList: Wanting to remove 1/10 wares of type (3)
Setting economy for object 0x8b06c18, which is a 4 to 0x8afe230
0x8afe230: add_request(0x8affac8) for worker Farmer, target
is 2519
REQ: 709 (0) <- 2519 (ware 3), priority 0
Economy::process_request-- Created a 'farmer' needed
WareList: Wanting to remove 1/100 wares of type (5)
WareList: Wanting to remove 1/153 wares of type (5)
WareList: Wanting to remove 1/6 wares of type (29)
WareList: Wanting to remove 1/6 wares of type (29)
WareList: Wanting to remove 1/1 wares of type (7)
MO(2520): schedule reget auto task
MO(709):  We have created a(n) farmer
HANDLE: 709 -> 2519, ware 3, priority 0
Request: start worker transfer for 3
Critical Error: Unhandled exception: MO(2257): stack dirty
before update[gowarehouse]
=================================================

Hope it will help.

Regards,