[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Swarm-Support] crash when running: *** event raised for error: Inva
|
From: |
Rick Riolo |
|
Subject: |
Re: [Swarm-Support] crash when running: *** event raised for error: InvalidArgument *** function: nil_method() |
|
Date: |
Tue, 5 Oct 2004 06:32:30 -0400 (EDT) |
>From a quick scan of it:
The key things to notice are
> The message `drop' was sent to nil.
and then a little farther down:
/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/internal.m:651
#6 0x0804a89f in -[Forager die] (self=0x81c5890, _cmd=0x805dcb0) at
Forager.m:273
#7 0x0804a62e in -[Forager predatorAttack] (self=0x81c5890,
_cmd=0x805dcc0) at Forager.m:243
The program is sending a drop message to some object in the
Forager.m die method -- at that line number (273), called from the
predatorAttack method.
So you need to look at Forager.m 273, and following the calls that get
you there, figure out why the program is trying to send 'drop'
to nil, i.e., trying to send it to nil (0 address) stored
in some variable, list, etc.
In general, work from the top of such a trace to find the
ultimate crash message (message sent to nil in this case), then
work down and find references to things in your program
(vs in the swarm libs).
- r
Rick Riolo address@hidden
Center for the Study of Complex Systems (CSCS)
4477 Randall Lab
University of Michigan Ann Arbor MI 48109-1120
Phone: 734 763 3323 Fax: 734 763 9267
http://cscs.umich.edu/~rlr
On Tue, 5 Oct 2004, phillip paul lucs wrote:
> Date: Tue, 5 Oct 2004 19:04:02 +1000 (EST)
> From: phillip paul lucs <address@hidden>
> Reply-To: Swarm Support <address@hidden>
> To: address@hidden
> Subject: [Swarm-Support] crash when running: *** event raised for error:
> InvalidArgument *** function: nil_method()
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> hi,
>
> i installed swarm as follows,
>
> http://www.philliplucs.net/docs/swarmhowto.html
>
> i then compiled the source code provided by Pepper and Smuts (99), The
> evolution of cooperation in an ecological context: An agent-based model as
> follows:
>
> http://www.philliplucs.net/docs/peppersmuts99howto.html
>
> i'm finding when a forager is called by a predator the simulation crashes.
> i've used gdb to do a backtrace to try and make some sense of it.
>
> (gdb) run
> Starting program: /usr/local/src/assign/eco
> numPlants = 256
> worldSize = 36
> *** event raised for error: InvalidArgument
> *** function: nil_method(), file:
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/internal.m,
> line: 651
> The message `drop' was sent to nil.
> *** execution terminating due to error
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/Symbol.m:187
> - -[Error(c) _raiseEvent:]
>
> Program received signal SIGABRT, Aborted.
> 0x406e7741 in kill () from /lib/libc.so.6
> (gdb) backtrace
> #0 0x406e7741 in kill () from /lib/libc.so.6
> #1 0x406e74c5 in raise () from /lib/libc.so.6
> #2 0x406e8a08 in abort () from /lib/libc.so.6
> #3 0x40280f0b in debugabort (
> filename=0x40212940
> "/home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/Symbol.m",
> lineno=187, function=0x40212b1a "-[Error(c) _raiseEvent:]")
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/misc/debugabort.c:9
> #4 0x401f621d in -[Error(c) _raiseEvent:] (self=0x8099570,
> _cmd=0x40222250, eventData=0x4020b5bf)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/Symbol.m:187
> #5 0x401fd714 in nil_method (receiver=0x0, op=0x805dd60)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/internal.m:651
> #6 0x0804a89f in -[Forager die] (self=0x81c5890, _cmd=0x805dcb0) at
> Forager.m:273
> #7 0x0804a62e in -[Forager predatorAttack] (self=0x81c5890,
> _cmd=0x805dcc0) at Forager.m:243
> #8 0x08049b14 in -[Forager step] (self=0x81c5890, _cmd=0x805ef00) at
> Forager.m:60
> #9 0x4001bddb in L10 () from /usr/lib/swarm/libswarm.so.0
> #10 0x081c5890 in ?? ()
> #11 0x0805ef00 in _OBJC_SELECTOR_TABLE ()
> #12 0x081e4480 in ?? ()
> #13 0x401b2e84 in __DTOR_END__ () from /usr/lib/swarm/libactivity.so.5
> #14 0x00000002 in ?? ()
> #15 0x081e5128 in ?? ()
> #16 0xbffff568 in ?? ()
> #17 0x40198a5a in -[ActionGroup(c) __performPlan:] (self=0x81f1fb0,
> _cmd=0x401abf78)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/CompoundAction.m:176
> #18 0x40209120 in objc_call (fa=0x81f1b00)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/_fcall.m:199
> #19 0x401f8712 in -[FCall(c) _performCall] (self=0x81569c8, _cmd=0x401abf90)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/defobj/FCall.m:749
> #20 0x40197156 in -[ActionTo(c) __performAction::] (self=0x81564f8,
> _cmd=0x401b0fb8, anActivity=0x8156450)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/Action.m:329
> #21 0x401a164b in -[Activity(c) __run:] (self=0x8156450, _cmd=0x401b0f90)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:257
> #22 0x401a14fc in -[Activity(c) __run:] (self=0x8155a30, _cmd=0x401b0f90)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:207
> #23 0x401a14fc in -[Activity(c) __run:] (self=0x81f0b90, _cmd=0x401b0f90)
> - ---Type <return> to continue, or q <return> to quit---
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:207
> #24 0x401a14fc in -[Activity(c) __run:] (self=0x81f0970, _cmd=0x401b0f90)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:207
> #25 0x401a14fc in -[Activity(c) __run:] (self=0x81f0e00, _cmd=0x401b0f90)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:207
> #26 0x401a14fc in -[Activity(c) __run:] (self=0x81ef908, _cmd=0x401b0f18)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:207
> #27 0x401a127c in -[Activity(c) _run] (self=0x81ef908, _cmd=0x4006a098)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/activity/XActivity.m:93
> #28 0x4005b99a in -[ControlPanel startInActivity:] (self=0x81549d0,
> _cmd=0x4006a8e0, activityID=0x81ef908)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/simtoolsgui/ControlPanel.m:94
> #29 0x4005c444 in -[GUISwarm go] (self=0x814fb00, _cmd=0x805d7e8)
> at
> /home/pauljohn/LinuxDownloads/redhat/BUILD/swarm-2.1.140.20020514/src/simtoolsgui/GUISwarm.m:70
> #30 0x0804976b in main (argc=1, argv=0x805d7b8) at main.m:32
>
> i'm lost to say the very least on fixing this.
>
> regards,
> phillip lucs
>
>
>
>
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.2.5 (GNU/Linux)
>
> iD8DBQFBYmOBIz1XfOolnxURAv6lAJ99lxcLjnYxXg1LErJc/RVUJ0yoSwCcDLkI
> VCRwKX3cXUIPsVhTJiczHII=
> =oqDv
> -----END PGP SIGNATURE-----
> _______________________________________________
> Support mailing list
> address@hidden
> http://www.swarm.org/mailman/listinfo/support
>