Re: simpleExperBug crashed ...

[Pietro Terna]

        I have the same problem. I can add that simpleExperBug was running
when compiled against the 1.0.0 binary distribution of Swarm for Linux. I
have modified it to introduce a correction in Bug.m (so set the color to the
2 value) and now the application goes in sementation error.

        However, I'm not absolutely sure of that, because in my Linux box
Swarm 1.0.0 is not more present (also looking at Santa Fe it is impossible
to find 1.0.0 binary version) and so I cannot repeat the experience.

        Yours, Pietro 


At 15.23 14/05/97 +0200, you wrote:
>
>I have some problems with running the simpleExperBug application from the
>tutorial-1.0.1 package on my Linux Box (Slackware 96). It crashes with a
>Segmentation fault immediately after I press the Go button. I am using the
>libraries that I downloaded from the santafe and gcc and gdb (no objc
>support) that came with Linux. I am sending the output of the backtrace
>command from gdb after the bug crashed. 
>
>I don't have the time look into the thing myself, so if anybody knows
>anything about this, please post the patch. Unless somebody posts the
>patch by the end of the next week, I will try to find the bug in the
>bug:), in a week or two. (I have some exams next week, so ... all work,
>no play:) 
>
>Thanks,
>Vladimir
>
>------------------------------------------------
>Here is the output from the gdb (c style, sorry!)
>
>(gdb) backtrace
>#0  0x80c3a80 in objc_msg_lookup ()
>#1  0x80751ca in notifyObjectDropped (anObject=0x81aca38, realloc=0x0, 
>    pd=0x81aeb68) at ProbeDisplay.m:54
>#2  0x805ea62 in _i_Object_s__dropAllocations_ (self=0x81aca38,
>_cmd=0x80ef190, 
>    componentAlloc=0 '\000') at DefObject.m:161
>#3  0x805e8a3 in _obj_dropAlloc (mapalloc=0xbffff594, objectAllocation=0
>'\000')
>    at DefObject.m:110
>#4  0x808a782 in _i_Zone_c__mapAllocations_ (self=0x81ac9d0, _cmd=0x80ef1e0, 
>    mapalloc=0xbffff594) at Zone.m:390
>#5  0x805eb81 in _i_Object_s__dropAllocations_ (self=0x81ac9d0,
>_cmd=0x80ef230, 
>    componentAlloc=0 '\000') at DefObject.m:188
>#6  0x805ed70 in _i_Object_s__drop (self=0x81ac9d0, _cmd=0x80e9ea0)
>    at DefObject.m:219
>#7  0x804fbd8 in _i_ExperSwarm__dropModel (self=0x816f188, _cmd=0x80e9cc0)
>    at ExperSwarm.m:381
>#8  0x805f5ad in _i_Object_s__perform_ (self=0x816f188, _cmd=0x80eac18, 
>    aSel=0x80e9cc0) at DefObject.m:448
>#9  0x8050ec8 in _i_ActionTo_0___performAction__ (self=0x81a4c60, 
>    _cmd=0x80fa580, anActivity=0x81ac4a8) at Action.m:164
>#10 0x8088718 in _i_Activity_c___run_ (self=0x81ac4a8, _cmd=0x80fa568)
>    at XActivity.m:150
>#11 0x80885e3 in _i_Activity_c___run_ (self=0x81abc08, _cmd=0x80fa568)
>    at XActivity.m:121
>#12 0x80885e3 in _i_Activity_c___run_ (self=0x81ab350, _cmd=0x80fa548)
>    at XActivity.m:121
>#13 0x8088448 in _i_Activity_c__run (self=0x81ab350, _cmd=0x80f0c9c)
>    at XActivity.m:67
>#14 0x8065297 in _i_GUISwarm__go (self=0x816f188, _cmd=0x80e9790)
>    at GUISwarm.m:45
>#15 0x804e172 in main (argc=1, argv=0xbffff7fc) at main.m:32
>#16 0x804dd0b in ___crt_dummy__ ()
>
>
>
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