Re: plperl sigfpe reset can crash the server

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@2ndquadrant.com>
Cc: pgsql-hackers@postgresql.org, Andrew Dunstan <andrew@dunslane.net>, Hannu Krosing <hannu@2ndquadrant.com>
Date: 2012-08-24T14:53:36Z
Lists: pgsql-hackers
Andres Freund <andres@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?

			regards, tom lane