Re: GC stack marking

[Dave Love]

Richard Stallman <address@hidden> writes:

>     If there's going to be another pretest, you might consider turning on
>     the conservative stack marking with the default saving mechanism at
>     least for Solaris, Irix, SunOS4 and OSF/Alpha under GCC.
> 
> 21.3 is a bug-fix release.

Sure.  The marking avoids bugs from missing gcpros which people seem
to be finding.

> Pretests for 21.3 are clearly the wrong
> time to try anything like that.

I successfully tried it long ago on those systems and it's already
released for SPARC and Alpha lignux.  It's not clear to me that the
risk outweighs the risk of missing gcpros, so I thought it was worth
raising.

> Instead, maybe we should try this in the trunk.

It was already on the trunk, except for Solaris.  (I realize the
problem that those platforms don't seem to get tested properly.)

By the way, the gcpro/staticpro fixes for Fapropos_internal on the
trunk aren't in the pretest source as far as I know.