Re: Worth using personality(ADDR_NO_RANDOMIZE) for EXEC_BACKEND on linux? - Mailing list pgsql-hackers

Andres Freund <andres@anarazel.de> writes:
> On 2021-08-09 13:43:03 -0400, Robert Haas wrote:
>> On Mon, Aug 9, 2021 at 1:30 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
> How common is to get a failure?  I know I've run tests under
> EXEC_BACKEND and not seen any failures.  Not many runs though.

> I get check-world failures in about 1/2-1/3 of the runs, and a plain check
> fails in maybe 1/4 of the cases. It's pretty annoying because it often isn't
> trivial to distinguish whether I've broken something or whether it's
> randomization related...

I don't have numbers, but I do know that on Linux EXEC_BACKEND builds fail
often enough to be annoying if you don't disable ASLR.  If we can do
something not-too-invasive about that, it'd be great.

            regards, tom lane