#9583: Unhandled SIGSEGV with 4.5.2.alpha0 on t2
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Reporter: mpatel | Owner: drkirkby
Type: defect | Status: new
Priority: blocker | Milestone: sage-4.5.2
Component: solaris | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by SimonKing):
Hi John!
Yes, I already found out that indeed I have an account on t2.math. I could
see only part of the advices, but at least I added a .profile in my home
dictionary containing
{{{
if [ `uname -n` = t2 ] ; then
. /usr/local/gcc-4.4.1-sun-linker/gcc441sun
fi
}}}
Then, I unpacked the pre-built sage in some directory of mine (but not in
/scratch, perhaps that would have been better), and Sage started.
Replying to [comment:14 jhpalmieri]:
> ...
> In the file {{{SAGE_ROOT/local/include/singular/kstd1.h}}}, the
variables {{{Kstd1_deg}}} and {{{Kstd1_mu}}} are defined differently;
could that be causing the problem?
> {{{
> extern int LazyPass,LazyDegree,mu,Kstd1_deg;
> #define Kstd1_mu mu
> }}}
Yes, this is something that we have been wondering about in Kaiserslautern
at Sage Days 23.5.
My understanding is that the line {{{#define Kstd1_mu mu}}} has the same
effect as replacing {{{Kstd1_mu}}} by {{{mu}}} in any C-file that includes
the header {{{kstd1.h}}} - in particular, this should also hold for the
Cython-generated C-files. Hans Schönemann (Singular developer) agreed that
this should not be a problem. And I used similar {{{#define}}} tricks
myself repeatedly, so far without problem.
But this was all using gcc -- Could it be that t2/Sun compiler behave
differently in that regard?
However, I would expect -- if {{{kstd1.h}}} really is to blame for it -
that Singular would not build. Recall that this is a file verbously taken
from Singular.
Cheers,
Simon
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9583#comment:15>
Sage <http://www.sagemath.org>
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