William Yu <wyu@talisys.com> writes:
> I then tried to put the WAL directory onto a ramdisk. I turned off
> swapping, created a tmpfs mount point and copied the pg_xlog directory
> over. Everything looked fine as far as I could tell but Postgres just
> panic'd with a "file permissions" error. Anybody have thoughts to why
> tmpfs would not work?
I'd say you got the file or directory ownership or permissions wrong.
regards, tom lane