[coLinux-users] Re: floating point problems (was: using 2.6 kernels, moving to latest coLinux snapshot, etc.)

[gboutwel <gbo...@pr...>]

sl...@bl... wrote:

> Joe Wells  writes:



> What is puzzling me is that I don't understand why only Firefox

> is affected by this.  I am running many other programs that
use floating

> point and none of them have this problem.  Gnumeric uses many
of

> the  same libraries as Firefox (I am building Firefox against
GTK2)

> and it seems to run.  (Actually, it crashes the first time
I run it (no

> idea why because the Gnome software helpfully hides the cause
and pops

> up a window saying it has crashed but without giving the signal),
but

> then if I run it immediately afterward it runs fine.  This
is new since

> the upgrade to the coLinux 2004-07-19 snapshot.  Strange.)
 GV also

> runs fine, and it surely is doing a lot of floating point operations

> to scale and render fonts.

> 

> Comments?



Joe,



  Did you emerge or re-emerge firefox after updating to the new
snapshot?  We have another person on IRC who reported getting
FPEs all of a sudden.  He changed his cflags to something a little
safer and re-emerged his system with the new cflags and he no
longer gets FPEs.  I've been using the latest sources including
the changes in the 07/19 snapshot for like a month now, on Gentoo
with out a single FPE.  I just emerged firefox and I don't see
any FPE while I'm using it at all.



  Is it possible that the prior versions of coLinux allowed FP
operations that shouldn't have been allowed and now that we've
fixed that, it's identifying a situation that was being allowed
but shouldn't have been in FireFox?  The only significant change
between 0.6.1 and 0719 in regards to FP operations was that flop20
didn't pass and now does.



George



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