Identifying Messages

[Doug Donalson]

I have a core dump where the back trace is all "Swarm" calls.  As a result,
I can't tell whether the call was a message my simulation scheduled or a
"tcl events" error or...?  Is there a way for me to decode the back trace to
see what the offending message was and/or intended reciepient?

Here is the back trace:

Program received signal SIGSEGV, Segmentation fault.
0x69cfc170 in swarm_directory_objc_find (env=0x0, object=0x4663da8)
    at /src/Swarm/swarm/src/defobj/directory.m:206
206 /src/Swarm/swarm/src/defobj/directory.m: No such file or directory.
(gdb) where
where
#0  0x69cfc170 in swarm_directory_objc_find (env=0x0, object=0x4663da8)
    at /src/Swarm/swarm/src/defobj/directory.m:206
#1  0x69cfc196 in swarm_directory_objc_find_java (env=0x0, object=0x4663da8)
    at /src/Swarm/swarm/src/defobj/directory.m:215
#2  0x69ce3679 in _i_Object_s__forward__ (self=0x0, _cmd=0x4663da8,
    aSel=0x256f42c, argFrame=0x69ce3665)
    at /src/Swarm/swarm/src/defobj/DefObject.m:605
#3  0x641ca0b0 in __objc_forward (object=0x4663da8, sel=0x45b08b0,
    args=0x40fcbc) at /src/Swarm/swarm/libobjc/sendmsg.c:571
#4  0x641c9e4d in __objc_word_forward (rcv=0x4663da8, op=0x40fcbc)
    at /src/Swarm/swarm/libobjc/sendmsg.c:499
#5  0x69dc253f in __builtin_avcall ()
#6  0x69d001db in objc_call (fa=0x482da38)
    at /src/Swarm/swarm/src/defobj/_fcall.m:167
#7  0x69ce8730 in _i_FCall_c__performCall (self=0x482d588, _cmd=0x4819ee0)
    at /src/Swarm/swarm/src/defobj/FCall.m:550
#8  0x69ccc147 in _i_ActionTo_c___performAction__ (self=0x478f518,
    _cmd=0x69dfaebc, anActivity=0x478f518)
    at /src/Swarm/swarm/src/activity/Action.m:286
#9  0x69cd82cd in _i_Activity_c___run_ (self=0x47ff1e8, _cmd=0x69dffbe4)
    at /src/Swarm/swarm/src/activity/XActivity.m:190
#10 0x69cd81fa in _i_Activity_c___run_ (self=0x479e198, _cmd=0x69dffbcc)
    at /src/Swarm/swarm/src/activity/XActivity.m:148
#11 0x69cd81fa in _i_Activity_c___run_ (self=0x481b1a8, _cmd=0x69dffbcc)
    at /src/Swarm/swarm/src/activity/XActivity.m:148
#12 0x69cd81fa in _i_Activity_c___run_ (self=0x47f1268, _cmd=0x69dffbcc)
    at /src/Swarm/swarm/src/activity/XActivity.m:148
#13 0x69cd81fa in _i_Activity_c___run_ (self=0x481aea8, _cmd=0x69dffbcc)
    at /src/Swarm/swarm/src/activity/XActivity.m:148
#14 0x69cd81fa in _i_Activity_c___run_ (self=0x476a698, _cmd=0x69dffbcc)
    at /src/Swarm/swarm/src/activity/XActivity.m:148
#15 0x69cd8113 in _i_Activity_c__run (self=0x4819ee0, _cmd=0x69dffbb4)
    at /src/Swarm/swarm/src/activity/XActivity.m:76
#16 0x69c544f9 in _i_ControlPanel__startInActivity_ (self=0x4819ee0,
    _cmd=0x69dce638, activityID=0x4819ee0)
    at /src/Swarm/swarm/src/simtoolsgui/ControlPanel.m:100
#17 0x69c554b4 in _i_GUISwarm__go (self=0x464d688, _cmd=0x69dcee58)
    at /src/Swarm/swarm/src/simtoolsgui/GUISwarm.m:49
#18 0x40113c in main (argc=73761600, argv=0x40e044) at main.m:31

Thx,

   D4

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* Dr. Doug Donalson             Office: (805) 893-2962
* Ecology, Evolution,           Home:   (805) 961-4447
* and Marine Biology            email address@hidden
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* Santa Barbara Ca. 93106
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*
*   The most exciting phrase to hear in science, the one that
*   heralds new discoveries, is not "EUREKA" (I have found it) but
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