Fix unsafe references to errno within error messaging logic. Various places were supposing that errno could be expected to hold still within an ereport() nest or similar contexts. This isn't true necessarily, though in some cases it accidentally failed to fail depending on how the compiler chanced to order the subexpressions. This class of thinko explains recent reports of odd failures on clang-built versions, typically missing or inappropriate HINT fields in messages.
Problem identified by Christian Kruse, who also submitted the patch this commit is based on. (I fixed a few issues in his patch and found a couple of additional places with the same disease.) Back-patch as appropriate to all supported branches. Branch ------ REL9_0_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/d17a667e8038c021eb38c203cc7aac2ea9dac0df Modified Files -------------- src/backend/commands/tablespace.c | 6 +++++- src/backend/port/sysv_sema.c | 14 ++++++++++---- src/backend/port/sysv_shmem.c | 19 +++++++++---------- 3 files changed, 24 insertions(+), 15 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
