On Friday, August 24, 2012 04:53:36 PM Tom Lane wrote: > Andres Freund <and...@2ndquadrant.com> writes: > > ./pod/perl581delta.pod: > > At startup Perl blocks the SIGFPE signal away since there isn't much > > Perl can do about it. Previously this blocking was in effect also for > > programs executed from within Perl. Now Perl restores the original > > SIGFPE handling routine, whatever it was, before running external > > programs. > > So there's a gap in the "restore" logic someplace. > > > perl.h also has some tidbits: ... > > That doesn't sound very well reasoned and especially not very well tested > > to me. > > Time to file a Perl bug? We probably should workaround that bug anyway given that its a pretty trivial DOS using only a trusted language and it will take quite some time to push out newer perl versions even if that bug gets fixed.
Doing a pqsignal(SIGFPE, FloatExceptionHandler) after PERL_SYS_INIT3 seems to work. Is that acceptable? Andres -- Andres Freund http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
