On Sun, Feb 25, 2024 at 8:50 AM Noah Misch <n...@leadboat.com> wrote: > On GNU/Linux x64, gcc correctly records alignment=2**12 for the associated > section (.rodata for bulk_write.o zero_buffer, .bss for pg_prewarm.o > blockbuffer). If I'm reading this right, neither AIX gcc nor xlc is marking > the section with sufficient alignment, in bulk_write.o or pg_prewarm.o:
Ah, that is a bit of a hazard that we should probably document. I guess the ideas to fix this would be: use smgrzeroextend() instead of this coding, and/or perhaps look at the coding of pg_pwrite_zeros() (function-local static) for any other place that needs such a thing, if it would be satisfied by function-local scope?
