Bruce Momjian wrote: > On Tue, Feb 11, 2014 at 01:28:01AM +0200, Marti Raudsepp wrote: > > On Tue, Feb 11, 2014 at 12:20 AM, Marti Raudsepp <marti@xxxxxxxxx> wrote: > > > This is on Ubuntu 13.10 (kernel 3.11) with XFS (mount ed with noatime, > > > no other customizations). > > > > I managed to track this down; XFS doesn't allow using O_DIRECT for > > writes smaller than the filesystem's sector size (probably same on > > other FSes). The XFS filesystem created by the Ubuntu installer uses > > 4kB sectors, for some weird reason: > > I have added the attached, applied C comment about Direct I/O write > failures and mismatched block sizes. Would it be more useful to report the test as failed and continue with other tests? -- Álvaro Herrera http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general