Conflict between Mma and Compact Virtual

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Conflict between Mma and Compact Virtual*From*: riddle at mathcs.emory.edu (Larry Riddle)*Date*: Tue, 18 Aug 92 21:22:52 -0400

Two weeks ago I sent a message to technical support at both Wolfram Research and Connectix about a conflict I have been experiencing between Mathematica 2.0 (and 2.1) and Compact Virtual that results in Mathematica crashing when I quit the program when I am using virtual memory under the Finder. So far I have received no response from either company. I don't expect anyone on this mailing list to tell me how to solve this problem (thought if you could...) but I am wondering if anyone else has experienced such problems with a similar hardware setup. More details are given below if you're interested. Hardware background: Macintosh SE with a Mobius 68030 accelerator with 4 megs on the accelerator and 2.5 megs on the mother board, one-page monitor Systme 6.07 With this same hardware setup, I had no problems running Mathematica 1.2 using virtual memory with Virtual 2.0. However, when I upgraded to Mathematica 2.0, the program would crash every time when I quit (but *usually* not while I was using the program). I then upgraded to Compact Virtual 3.0 but Mathematica 2.0 still crashed upon quitting. Just recently I upgraded to Mathematica 2.1 which also crashes upon quitting. Crashes only occur when using the Finder. Under multifinder Mathematica does not crash using virtual memory (of course, I also do not have enough memory to do much in Mathematica since under multifinder the largest unused block is only about 3000K). Crashes only occur when using virtual memory. If the amount of memory is set to 4096, so no virtual memory is used and "extended memory" is unchecked, Mathematical will not crash upon quitting. When the amount of memory is set to 8192, Mathematical crashes upon quitting. Here are the messages I get when Mathematical 2.1 crashes upon quitting. The bomb box alternates between "address error" and "math coprocessor not installed". I installed SoftwareFPU and then when the program quits the screen simply freezes with no bomb box. I installed Macsbug and when Mathematica crashed got the message undefined A-trap at 007A3382 *MOVEM.L (A7)+,A0/A1 The command sc7 gives the message Damage stack: A7 must be even and <= CurStackBase Larry Riddle | riddle at mathcs.emory.edu PREFERRED Agnes Scott College | {rutgers,gatech}!emory!riddle UUCP Dept of Math | riddle at emory.bitnet NON-DOMAIN BITNET Decatur, GA 30030 | (404) 371-6222 AT&T