Re: [Discuss-gnuradio] Make Check Failures under FC9 on Intel

[Don Ward]

Eric Blossom wrote:

> On Wed, Jun 18, 2008 at 01:53:33PM -0400, Suprin, Charles E. wrote:
> > Eric,
> >
> > Looks like the current compiler in
> >
> > g++ --version
> > g++ (GCC) 4.3.0 20080428 (Red Hat 4.3.0-8)
> > Copyright (C) 2008 Free Software Foundation, Inc.
> >
> > I saw the earlier traffic that discussed a compile problem from around
> > June 2 2008.  However now we pass compile and fail the checks.
> >
> >
> > Charles
>
> I supect a compiler bug.
> Here's the list of bugs fixed from 4.3.0 to 4.3.1
> http://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=4.3.1
>
> I suggest testing with gcc 4.3.1 and see if the problem is still
> there.  If it's gone, problem solved, otherwise there's more sleuthing to 
> do.

I ran into this today with gcc 4.3.1 on Debian (testing).  Line 101 of 
qa_gr_fxpt_nco.cc

 new_nco.sincos ((gr_complex*)new_block, SIN_COS_BLOCK_SIZE);

only fills the first 1696 members of new_block (though SIN_COS_BLOCK_SIZE = 
100000).  Adding printf statements to new_nco.sincos or compiling 
qa_gr_fxpt_nco.cc with -O1 makes the problem go away.

-- Don W.

> > -----Original Message-----
> > From: Eric Blossom [mailto:address@hidden
> > Sent: Wednesday, June 18, 2008 1:43 PM
> > To: Suprin, Charles E.
> > Cc: address@hidden
> > Subject: Re: [Discuss-gnuradio] Make Check Failures under FC9 on Intel
> >
> > On Wed, Jun 18, 2008 at 11:18:47AM -0400, Suprin, Charles E. wrote:
> > > Hello,
> > >
> > > I am attempting to install and compile the svn version 8598 version
> > of
> > > gnuradio on a Fedora 9 Pentium 4.  It compiles fine but throws errors
> > > during make check.
> > >
> > > !!!FAILURES!!!
> > >
> > > Test Results:
> > >
> > > Run:  90   Failures: 1   Errors: 0
> > >
> > > 1) test: qa_gr_fxpt_nco::t1 (F) line: 101 qa_gr_fxpt_nco.cc
> > >
> > > double equality assertion failed
> > >
> > > - Expected: -0.857728600502014
> > >
> > > - Actual  : 0
> > >
> > > - Delta   : 9.99999974737875e-06
> > >
> > >
> > >
> > > It seems there is an issue both in how it computes the actual and the
> > > Delta.
> > >
> > >
> > >
> > > A few quick Google searches and scanning the mailing list did not
> > show
> > > any one else having the issue.
> > >
> > >
> > >
> > > Is anyone else having this issue?
> > > Charles
> >
> > I believe I saw this or something like it when I tested with gcc 4.3.0
> > a few months ago.  I didn't worry too much about it since the list of
> > known bugs for the compiler was pretty long, and this was the first
> > release of 4.3.0  What version of g++ is shipping with F9?
> >
> >   $ g++ --version
> >
> > Eric
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
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> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio


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