rnysm...@yahoo.com writes: > This month, we upgrade the libpq5 from 8.4.7 to 8.4.11.(libpq-dev > 8.4.11-0ubuntu0.11.04) Our service program become unstable after upgrading.
It seems rather improbable that a deadlock inside glibc would be our bug. Also, I've just looked very carefully through all the diffs between 8.4.7 and 8.4.11 (or at least, all the diffs affecting libpq) and I don't see anything that could plausibly lead to this behavior. > After search the mailing list, we found someone else have the similar > problem: > http://archives.postgresql.org/pgsql-general/2011-03/msg00895.php I can't help observing that that person is also using ubuntu, and that we have not heard similar complaints from anybody else. Ubuntu-specific glibc bug perhaps? A slightly different theory is an ubuntu-specific openssl bug; if there were something wrong in the internal locking in libcrypto, it could well lead to a backtrace like this. regards, tom lane -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs