core dump on 0.64.2 SPARC/Solaris 2.6 in eigen (PR#223)

[Peter Dalgaard BSA]

Thomas Lumley <thomas@biostat.washington.edu> writes:

> On Fri, 9 Jul 1999 bates@stat.wisc.edu wrote:
> 
> > ..
> > R is now configured for sparc-sun-solaris2.6
> > 
> >   Source directory:         .
> >   Installation directory:   /unsup/R-0.64.2
> >   C compiler:               gcc -g -O2
> >   FORTRAN compiler:         g77 -O2
> >   Gnome support:            no
> > 
> > $ gcc --version
> > egcs-2.91.66
> > $ g77 --version
> > GNU Fortran 0.5.24-19981002
> 
> I don't have this problem under Solaris 2.7 using gcc and Sun Workshop f77
> 

This is very likely the same trouble that I just spent some time
analyzing with Vin Everett on Sparc Linux (RedHat 6.0). We traced it
to something that looks suspiciously like a compiler error. I actually
considered asking around if anyone used same egcs version on Solaris,
but though "nah, probably not"....

Doug, could you 

- recompile eigen.o with -g 
- run it with -d gdb
- see if the crash resembles the one below

...
> eigen(cbind(-1,c(1:2,0),0:2)) # complex values

Program received signal SIGSEGV, Segmentation fault.
hqr2_ (nm=0x1, n=0x70d99fc8, low=0xefffed94, igh=0xefffed90,
h=0x70d99f80,
    wr=0x70d99f68, wi=0x70d99f50, z=0x70d99f00, ierr=0x70d99ed0)
    at eigen.f:2120
2120                   RA = RA + H(I,J) * H(J,NA)
Current language:  auto; currently fortran
(gdb) p j
$1 = 0
(gdb) p na
$2 = 0
(gdb) p en
$3 = 3
(gdb) p n
$4 = (PTR TO -> ( integer )) 0x70d99fc8
(gdb) p nm
$5 = (PTR TO -> ( integer )) 0x1


-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907
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