Tom Lane wrote: > Alvaro Herrera <alvhe...@2ndquadrant.com> writes: > > Aaron W. Swenson wrote: > >> In the 4 years that that particular line has been there, not once had > >> anyone else run into it on Gentoo until a couple months ago. > >> And it isn't a case of end users missing it as we have arch testers > >> that test packages before marking them suitable for public consumption. > >> Alpha is one of the arches. > > > This means that not once has anybody compiled in an Alpha in 4 years. > > Well, strictly speaking, there were no uses of pg_read_barrier until 9.4. > However, pg_write_barrier (which used "wmb") was in use since 9.2; so > unless you're claiming your assembler knows wmb but not rmb, the code's > failed to compile for Alpha since 9.2.
Actually according to this http://www.cs.cmu.edu/afs/cs.cmu.edu/academic/class/15213-f98/doc/alpha-asm.pdf there is a wmb instruction but there is no rmb. -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
