On Fri, May 7, 2021 at 1:43 PM Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> The interesting part of this is frame 6, which points here:
>
> case SYNC_METHOD_FDATASYNC:
> if (pg_fdatasync(fd) != 0)
> ereport(PANIC,
> (errcode_for_file_access(),
> errmsg("could not fdatasync file \"%s\": %m",
> XLogFileNameP(ThisTimeLineID, segno))));
Oh, and I see that 13 has 9989d37d "Remove XLogFileNameP() from the
tree" to fix this exact problem.