Path: utzoo!attcan!utgpu!watmath!iuvax!rutgers!apple!keith
From: keith@Apple.COM (Keith Rollin)
Newsgroups: comp.sys.mac.programmer
Subject: Re: MPW C 3.0 System Error 33 Crashes
Message-ID: <30538@apple.Apple.COM>
Date: 12 May 89 04:14:25 GMT
References: <152@cbw1.UUCP>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 32

In article <152@cbw1.UUCP> cbw1!brian@umbc3.UMD.EDU (Brian Cuthie) writes:
>
>I have been having problems compiling some programs with the MPW C 3.0
>compiler on my Mac IIx.  Specifically,  there appears to be a somewhat random
>occurance of system error 33 while at 'stripaddress+08b4'.  Rebooting and
>recompiling almost always works.
>
>I know of other people having similar problems.  Is this a known problem ?
>Does it have a fix/workaround ?
>
>Thanks,
>
>Brian

Sorry for the delay on this one. With all of the WWDC going on this week, I
wasn't able to get an answer for a while.

Unfortunately, we don't really know why this happens. It seems to be a problem
with the C compiler itself. Somewhere along the way, it randomly trashes a
relocatable block header, putting in a funny pattern. We haven't been able to
get a reproducable case for this, but recent fixes to the MPW C compiler seem
to minimize the effect. If you can help us determine a set of steps we can 
follow to accurately reproduce the problem, that would help us out immensely!



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"Argue for your Apple, and sure enough, it's yours" - Keith Rollin, Contusions