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Re: [Bug-gforth] Crash on OS X
From: |
Bernd Paysan |
Subject: |
Re: [Bug-gforth] Crash on OS X |
Date: |
Fri, 2 Apr 2010 21:34:01 +0200 |
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KMail/1.13.2 (Linux/2.6.31.12-0.2-default; KDE/4.4.2; x86_64; ; ) |
Am Sonntag 21 Februar 2010 21:44:53 schrieb Bernd Paysan:
> Am Sonntag 21 Februar 2010 21:22:16 schrieb Torbjorn Kristoffersen:
> > I typed "see drop" in Gforth 0.7.0 on Mac OS X Snow Leopard (10.6.2 on
> > a Mac Pro) and the OS started behaving completely erratically.
> >
> > For one, all the icons on my desktop disappeared and I could no longer
> > start any programs.
> > I had a shell open, and it told me my user was suddenly gone. "id"
> > revealed that I had a uid, but no username!
> > Upon a restart, everything was fine again. I've reproduced the bug 3
> > times by typing "see drop".
> >
> > Did Gforth trigger a nasty OS X bug? Can anyone else please confirm
> > this?
>
> I tried this and it seems to work fine (from within Gforth, the
> disassembler output was as expected), but then all hell break lose. I
> couldn't start the Finder any more, the software update that found
> something didn't react, and finally, the menu folded down (Mac OS X 10.5).
> I can confirm that this triggers a nasty Mac OS X bug.
>
> What we do for see <primitive> on x86_64 is: We start gdb, and advice it to
> produce an assembler dump of the region of the primitive.
This seems now be fixed with the most recent Mac OS X bug - it now again works
for me. We had a bug report earlier here (one year ago), where I couldn't
reproduce it.
https://savannah.gnu.org/bugs/index.php?26261
I strongly suspect that this bug was introduced into Mac OS X about one year
ago, and my usual update lag back then caused me to mark the problem as "works
for me" back then.
--
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://www.jwdt.com/~paysan/
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