On 2020-Jan-28, Robert Haas wrote:
> On Fri, Jan 24, 2020 at 2:13 AM Michael Paquier <michael@paquier.xyz> wrote:
> > No, that's not right. I think that it is possible to loop over
> > ShmemProtectiveRegion in some cases. And actually, your patch is dead
> > wrong because this is some code called by the postmaster and it cannot
> > use FATAL.
>
> Uh, really? I am not aware of such a rule.
I don't think we have ever expressed it as such, but certainly we prefer
postmaster to be super robust ... rather live with a some hundred bytes
leak rather than have it die and take the whole database service down
for what's essentially a fringe bug that has bothered no one in a decade
and a half.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services