Andres Freund <and...@2ndquadrant.com> writes: > Isn't the far more obvious thing ot just not build postgres with -pie on > 32bit? It's hardly a security benefit if it allows plain user to crash > the server.
Yeah, that's what I was doing when I was at Red Hat --- PIE mode would be nice, but not when it breaks basic functionality. I think throwing an error out of a SIGBUS handler is right out. There would be no way to know exactly what code we were interrupting. It's the same reason we don't let, eg, the SIGALRM handler throw a timeout error directly (in most places anyway). >> * PostgreSQL allocates lots of heap using brk() instead of mmap() > It doesn't really do that, btw. It's the libc's mmap that makes those > decisions, not postgres. It occurs to me that maybe this is a glibc bug, not a kernel bug? regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers