One test in data.cc crashes Octave 3.1.51

[John W. Eaton]

On 12-Aug-2008, Jaroslav Hajek wrote:

| On Mon, Aug 11, 2008 at 10:54 PM, Thomas Treichl <Thomas.Treichl at gmx.net> wrote:
| > Hi,
| >
| > I have still some more problems after compiling 3.1.51 for PPC (but overall just
| > 7 test failures). One special test in data.cc crashes Octave, I have found out
| > the source where it appears (data.cc, line 1064):
| >
| >   %!assert(log2(complex(0,Inf)), Inf + log2(i));
| >
| > I split the commands and found out more:
| >
| >   octave:1> A = Inf
| >   A = Inf
| >   octave:2> B = log2(i)
| >   B =  0.00000 + 2.26618i
| >   octave:3> A+B
| >   panic: Segmentation fault -- stopping myself...
| >   ans = Inf + attempting to save variables to `octave-core'...
| >   save to `octave-core' complete
| >   Segmentation fault
| >
| 
| I can't reproduce this crash. Can you share your config.log, or just
| tell me whether you have log2 in libm?
| 
| 
| > And I don't have any idea where to go from here looking for this bug. My second

To start with, run Octave under gdb and find out where it crashes.

jwe