[taxipilot-develop] [ taxipilot-Bugs-1250774 ] Compiles w/out error. Crashes @ start.

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Bugs item #1250774, was opened at 2005-08-03 07:28
Message generated for change (Comment added) made by tfry
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https://sourceforge.net/tracker/?func=detail&atid=409706&aid=1250774&group_id=33948

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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: jda (jaddin)
Assigned to: Thomas Friedrichsmeier (tfry)
Summary: Compiles w/out error. Crashes @ start.

Initial Comment:
**Re-submitted with contact info**

v0.9.1

Seemed to compile fine with no errors.  After launch,
aRts immdiately crashes when you advance to the game
screen.  The intro screen continues to run with all
animation and text scroller functioning.  When you
press 'Space' to begin the game, Taxipilot crashes
completely.  

Configuration :
KDE 3.3.2
alsa 1.0.8
aRts 1.3.2

----------------------------------------------------------------------

>Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-08-29 19:41

Message:
Logged In: YES 
user_id=300591

Thanks for all your answers! 

Ok, so now I know, where exactly the crash occurs 
(actually it's already visible in the backtrace, but I just 
couldn't believe it really showed the problem). It's in 
lines 178-219 of taxipilotapp.cpp. More specifically in 
line 181. 
Now the problem is, this code is perfectly valid. I've 
searched google and various bug databases but 
could not find any pointers. So I'm not really attaching 
high hopes to this attempt: Could you replace lines 
178-219 of taxipilotapp.cpp with this slightly modified 
version? 

bool TaxipilotApp::eventFilter(QObject *, QEvent 
*event) { 
	if (event->type() == QEvent::AccelOverride) { 
		KKey key (static_cast<QKeyEvent*> (event)); 

		if (SUp.contains (key)) { 
			tp->current_key_ud = -1; 
		} else if (SDown.contains (key)) { 
			tp->current_key_ud = 1; 
		} else if (SLeft.contains (key)) { 
			tp->current_key_lr = -1; 
		} else if (SRight.contains (key)) { 
			tp->current_key_lr = 1; 
		} else { 
			return false; 
		} 
		return true; 
	} else if (event->type() == QEvent::KeyRelease) { 
		KKey key(static_cast<QKeyEvent*> (event)); 

		if (SUp.contains (key)) { 
			if (tp->current_key_ud == -1) { 
				tp->current_key_ud = 0; 
			} 
		} else if (SDown.contains (key)) { 
			if (tp->current_key_ud == 1) {; 
				tp->current_key_ud = 0; 
			} 
		} else if (SLeft.contains (key)) { 
			if (tp->current_key_lr == -1) { 
				tp->current_key_lr = 0; 
			} 
		} else if (SRight.contains (key)) { 
			if (tp->current_key_lr == 1) { 
				tp->current_key_lr = 0; 
			} 
		} else { 
			return false; 
		} 
		return true; 
	} 
	return false; 
} 

In theory it should not really affect the crash 
(unfortunately), but at least it's slightly better code. 
And who knows, maybe the previous version 
triggered some obscure compiler bug that this 
version does not... 

----------------------------------------------------------------------

Comment By: jda (jaddin)
Date: 2005-08-26 07:45

Message:
Logged In: YES 
user_id=1323063

1) Right you are.  Apparently it is crashing no matter what key 
is pressed. I tried 'F', 'L', ans several other random keys. They 
all have the same result. 

2) I attempted to start the game with Game>New.  The game 
did start!  Then I pressed the arrow key and it crashed.   

Thanks. 

----------------------------------------------------------------------

Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-08-25 22:32

Message:
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Ok, this is still mysterious. Your answers to 1) and 4) 
seem to indicate, that this has little to do with actually 
starting the game. Maybe it's really more about 
handling the space-key. 
In order to confirm/disconfirm this suspicion, could 
you try out the following things, and tell me what 
happens (if anything): 

1) Press some other key instead of space. In 
particular, please try the 'F'-key (that keypress should 
trigger some of the same lines of code). 
2) Instead of pressing space, start the game via 
Game->New. 

For the time being, I believe the crash in aRTs is 
probably a separate issue. I'll try to figure out the 
more severe one first. 

Thanks for your patience! 

----------------------------------------------------------------------

Comment By: jda (jaddin)
Date: 2005-08-25 21:28

Message:
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Thanks for your help. 
I know that these things are difficult with the countless 
variables the Linux environment presents. 

1) 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->idle->data': Info: sound-element not given. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->idle->data': Info: alpha-attribute not given. 
Assuming 'no' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Adding prefix 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/' 
to filename: 'evilbot/idle2_0000.png' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Found animation 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/evilbot/idle2_%1.png' 
in cache. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->idle->data': Info: anim_oscillating-attribute 
not given. Assuming 'no' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->idle->data': Info: sound-element not given. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->teleporting': Info: alpha-attribute not given. 
Assuming 'no' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Adding prefix 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/' 
to filename: 'evilbot/teleporting_0000.png' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Found animation 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/evilbot/teleporting_%1.png' 
in cache. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->teleporting': Info: 
anim_frame_period-attribute not given. Assuming 50 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->teleporting': Info: sound-element not given. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->still': Info: alpha-attribute not given. 
Assuming 'no' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Adding prefix 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/' 
to filename: 'evilbot/still.png' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
Info: Found animation 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/evilbot/still.png' 
in cache. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->still': Info: anim_frame_period-attribute not 
given. Assuming 50 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->still': Info: anim_oscillating-attribute not 
given. Assuming 'no' 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document->still': Info: sound-element not given. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node 'document': Info: hello-element not given. 
In file 
'/usr/share/apps/taxipilot/game_data/old_mission/passengers/passenger2.passenger': 
In node '#INVALID#': Info: sound-element not given. 
KCrash: Application 'taxipilot' crashing... 

2) The aRts crash only occurs when sound is active.  The final 
crash that exits the TaxiPilot occurs no matter which state the 
sound is in. 

3) The gcc version is 3.4.3 .  I just double checked the entire 
compilation process and it does not give any indication of a 
problem that I can see.  No errors or warnings are printed at 
the end of the process. 

4) Yes, the game does crash on any mission.  They will all do 
as earlier described.  It all seems to go well up until you press 
the space bar to begin. 

----------------------------------------------------------------------

Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-08-24 13:38

Message:
Logged In: YES 
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I must admit I don't really have a clue, what might be  
going wrong. A few questions (blind guesses, but  
maybe they do shed some light):  

1) Could you run "taxipilot --debug-level 3" and post 
the last 20 lines of output? 

2) Since the crash does not seem to be directly 
related to sound: Does aRTs crash consistently on 
every launch of Taxipilot or only sometimes (on my 
system, lately, I see soundserver crashes every now 
and then for a variety of apps)? 

3) Which version of gcc are you using? Any chance 
this may have something to do with the transition to 
gcc 4? Any warnings during the linking stage? 

4) Does the game crash regardless of which 
mission you chose? 

Thanks! 

----------------------------------------------------------------------

Comment By: jda (jaddin)
Date: 2005-08-23 23:32

Message:
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Thanks for the response.  I did attempt to run the program
with sound un-checked with the same results.  When simply
running in the console, it gives the message 'Application
TaxiPilot crashing'  Kcrash gives SIG 11 dialog.  This is
the backtrace information...

Using host libthread_db library "/lib/tls/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1242732864 (LWP 27578)]
[KCrash handler]
#7  0xb6c8bc05 in KKey::init () from /usr/lib/libkdecore.so.4
#8  0xb6c8bc84 in KKey::KKey () from /usr/lib/libkdecore.so.4
#9  0x0807128d in TaxipilotApp::eventFilter ()
#10 0xb66c397e in QObject::activate_filters ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#11 0x08186318 in ?? ()
#12 0x0818b668 in ?? ()
#13 0xbfffef40 in ?? ()
#14 0xb7ff3d68 in _dl_lookup_symbol_x (
    undef_name=0xf684086 <Address 0xf684086 out of bounds>, 
    undef_map=0x9684086, ref=0x0, symbol_scope=0x0,
version=0x8186318, 
    type_class=135844584, flags=0, skip_map=0x8190310) at
dl-lookup.c:251

---------

This is some other debug (gdb) data...

Starting program: /usr/bin/taxipilot
[Thread debugging using libthread_db enabled]
[New Thread -1242732864 (LWP 26273)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1242732864 (LWP 26273)]
0xb6c8bc05 in KKey::init () from /usr/lib/libkdecore.so.4

Run till exit from #0  0xb6c8bc05 in KKey::init () from
/usr/lib/libkdecore.so.4
KCrash: Application 'taxipilot' crashing...
Detaching after fork from child process 26509.

Program exited with code 0375.

-----------

I have libkdecore/devel 4 3.3.2-124.2

Thanks!

----------------------------------------------------------------------

Comment By: Thomas Friedrichsmeier (tfry)
Date: 2005-08-23 16:48

Message:
Logged In: YES 
user_id=300591

Sorry for the long delay! 

Could you please try running taxipilot from the  
console and post any error-messages shown?  

Also, in order to confirm whether or not this really is  
an issue related to sound, could you try to disable  
sound prior to pressing 'Space' (Settings->Configure 
Taxipilot), and check whether it still crashes? 

Thanks for your feedback! 

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=409706&aid=1250774&group_id=33948