On Fri, Mar 29, 2024 at 4:00 PM Thomas Munro <thomas.mu...@gmail.com> wrote: > On Fri, Mar 29, 2024 at 3:48 PM Noah Misch <n...@leadboat.com> wrote: > > The thread Alvaro and Tom cited contains an analysis. It's a compiler bug. > > You can get past the compiler bug by upgrading your compiler; both ibm-clang > > 17.1.1.2 and gcc 13.2.0 are free from the bug. > > For the specific issue that triggered that, I strongly suspect that it > would go away if we just used smgrzeroextend() instead of smgrextend() > using that variable with the alignment requirement, since, as far as I > can tell from build farm clues, the otherwise similar function-local > static variable used by the former (ie one that the linker must still > control the location of AFAIK?) seems to work fine.
Oh, sorry, I had missed the part where newer compilers fix the issue too. Old out-of-support versions of AIX running old compilers, what fun.