Re: [B2-devel] Still same crash/problem

[Gwenole B. <gb...@di...>]

On Wed, 16 Jan 2002, Hetz Ben Hamo wrote:

> > Probably "someone" is trying to access above the SratchMemory area. It
> > could be a compiler bug too. Please try compiling with optimizations off
> > (edit the CXXFLAGS in Makefile).
>
> CXXFLAGS =  -O2 -I/usr/X11R6/include -I/usr/include/gtk-1.2
> -I/usr/include/glib-1.2 -I/usr/lib/glib/include -I/usr/X11R6/include
> -fno-merge-constants
> ^^ thats what I modified, which brings the same problem (same error).
> removing also the -fno-merge-constants make B2 screams "floating point
> exception".

-fno-merge-constants is mandatory with "2.96"-RH/MDK, 3.0-RH/MDK, or FSF
3.1. Probably due to a bug in the constants merging code. I have yet to
check with the current gcc 3.1 snapshots. Otherwise, B2 indeed crashes.

Please try with s/-O2/-O0/ and keep -fno-merge-constants.

> I tried to compile with and without DGA support - same error.

Sorry, I meant at runtime. ;-)

> Actually, it doesn't work well - I get on the "mac" - "sorry, a system error
> occured. "system" "illegal instruction"
> And on the console: Illegal instruction: 000b at 00034888
> Thats on the 68030 with FPU, or with 68040. With the 68040 mode I get at the
> console: Illegal instruction: 000b at 0003c9dc

Hmmm, then probably a cpu core bug. Please try this one:

In the generated Makefile, change all occurrences of $(OBJ_DIR)/cpuopti
used in any cpufast?.s: rule with a cat. i.e. Don't use the cpuopti pass.

> I'm on IRC in irc.kde.org server (on channel #winehq) - feel free to contact
> me and I'll let you in to 1 of my machines if you want to test or change B2..

Sorry, I have another idea but I really have to go now.

Bye,
Gwenole.