Re: DBI 1.38 / perl 5.8.0 ithreads / Solaris causes segfault

[Terence J. Young, D.C.]

How can you tell if threads are enabled?

How do you know if you are using 64 bit integers (is this a solaris 
thing or a Perl thing?)

terry

Michael Peppler wrote:

One of the DBD::Sybase users is reporting that DBD::Sybase segfaults on
startup when built with DBI 1.38, perl 5.8.0 with ithreads and 64 bit
integers (but NOT 64 bit everything).
DBD::Sybase fails the first time it tries to access DBIS:

In dbd_init() we have:

   if(DBIS->debug >= 2) {
       char *p = "";
       if((sv = perl_get_sv("DBD::Sybase::VERSION", FALSE)))
           p = SvPV(sv, lna);
and it segfaults on the if() statement.

If I'm not mistaken, this comes from the following:

# define DBIS (*(dbistate_t**)&SvIVX(DBISTATE_ADDRSV))

which is used if MULTIPLICITY is defined (which it is when ithreads is
enabled).
SvIVX will return a 64 bit entity in this situation, but pointers are 32
bit.
I have a feeling that there isn't any direct work-around, other than not
using 64 bit integers?
Michael