Comment 11 for bug 24717

Thiemo Seufer wrote:
> Sven Luther wrote:
> > Package: gcc-4.0
> > Version: 4.0.2-3
> > Severity: grave
> > Justification: renders package unusable
> >
> >
> > Well, i confirm that this problem is also present on powerpc, using
> > gcc-4.0 4.0.2-3 makes the kernel build fail, while using -2 seems to be
> > ok. I have heard people mentioning two other arches where this is the
> > case (m68k and mips i think) on irc (on #debian-release i think even,
> > not sure), but no bug has been filed so i do it now.
> >
> > My powerpc builds failed with :
>
> For mips 2.6.12, which built fine with gcc 4.0.2-2:
>
> CC [M] fs/reiserfs/tail_conversion.o
> fs/reiserfs/tail_conversion.c: In function 'direct2indirect':
> fs/reiserfs/tail_conversion.c:138: internal compiler error:
> Floating point exception
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> For Debian GNU/Linux specific bug reporting instructions,
> see <URL:file:///usr/share/doc/gcc-4.0/README.Bugs>.
> make[5]: *** [fs/reiserfs/tail_conversion.o] Error 1
> make[4]: *** [fs/reiserfs] Error 2
>
> Sorry, no testcase yet.

The attached testcase triggers this bug on mips-linux when compiled
with "gcc -O2 -mabi=64 -c"

The appended patch reverts a single line of the diff between 4.0.2-2
and 4.0.2-3 and lets the testcase succeed. I don't know that part of
gcc enough to judge if it is a valid fix for the problem.

Sven, could you test if this fixes also the problem you see?

Thiemo