On Thu, Oct 22, 2015 at 4:45 PM, Robert Haas <robertmh...@gmail.com> wrote: > On Fri, Oct 16, 2015 at 5:08 PM, Robert Haas <robertmh...@gmail.com> wrote: >> The shm_mq code handles blocking mode and non-blocking mode >> asymmetrically in a couple of places, with the unfortunate result that >> if you are using non-blocking mode, and your counterparty dies before >> attaching the queue, operations on the queue continue to return >> SHM_MQ_WOULD_BLOCK instead of, as they should, returning >> SHM_MQ_DETACHED. The attached patch fixes the problem. Thanks to my >> colleague Rushabh Lathia for helping track this down. >> >> (There's are some further bugs in this area outside the shm_mq code >> ... but I'm still trying to figure out exactly what they are and what >> we should do about them. This much, however, seems clear-cut.) > > ...and so I've committed it and back-patched to 9.4.
Sigh. This was buggy; I have no idea how it survived my earlier testing. I will go fix it. Sorry. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
