MATLAB: Do MATLAB and Simulink hang or generate a bus error when I try to close the S-Function Builder block window in R13 on the Mac OSX

blockboxbuilderbusbuttoncancelcrashdialogerrorfreezehangkillr13s-functionsimulink

I am using Simulink 5.0 (R13) on a Mac OSX. I start off by creating a new Simulink model with the S-Function Builder block in it. Then I open the dialog box of the S-Function Builder and type in an S-Function name. If I then decide to hit the 'Cancel' button, MATLAB either exits, freezes, or I get the following bus error:
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 Configuration:
   MATLAB Version:   6.5.0.182190a (R13)
   Operating System: Darwin 5.4 Darwin Kernel Version 5.4: Wed Apr 10 09:27:47 PDT 2002; 
   Window System:    The XFree86 Project, Inc (40200000), display :0.0
   Current Visual:   0x22 (class 4, depth 24)
   Virtual Machine:  Java 1.3.1 with Apple Computer, Inc. Java HotSpot(TM) Client VM (mixed mode)
   r0 = 00bb9644   r8 = 004812dc  r16 = bfff32a0  r24 = 00000000
   r1 = bfff2f90   r9 = 0d866898  r17 = fd0026d8  r25 = 00000000
   r2 = 0047ce90  r10 = 0003116b  r18 = bfff32e4  r26 = 00000000
   r3 = 00000000  r11 = 00c25da8  r19 = bfff3288  r27 = bfff30a8
   r4 = 007d88b0  r12 = 00bd888c  r20 = fd002968  r28 = 0bb668c0
   r5 = 0bb668c0  r13 = 023018e0  r21 = fd002700  r29 = 0bb668c0
   r6 = bfff30a8  r14 = 0231d2d0  r22 = fd002700  r30 = 007d88b0
   r7 = 0047b37c  r15 = 017a25e8  r23 = 3e1014a8  r31 = 00bdba84
   pc = 00bdbab4   sp = 00043f04  psw = 0000d030   cr = 44022280
   lr = 00bdbab4  xer = 00000014  ctr = 00bd888c   mq = 00000000
   vrsave = 0000000a
 Stack Trace:
   [0] libmwudd.dylib:UDInterface::getE(UDDatabaseClient *, UDPropInfo *, UDErrorStatus *)(0, 0x007d88b0, 0x0bb668c0, 0xbfff30a8) + 68 bytes

Best Answer

This bug has been fixed in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:
This is a bug in Simulink 5.0 (R13) that has been reported to our development staff to be fixed in a future release.
As a workaround, click on the 'OK' button in the S-Function Builder dialog box, then proceed with your block diagram modelling.
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