Tighten up error recovery for fast-path locking. The previous code could cause a backend crash after BEGIN; SAVEPOINT a; LOCK TABLE foo (interrupted by ^C or statement timeout); ROLLBACK TO SAVEPOINT a; LOCK TABLE foo, and might have leaked strong-lock counts in other situations. Report by Zoltán Böszörményi; patch review by Jeff Davis. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/53c5b869b464d567c3b8f617201b49a395f437ab Modified Files -------------- src/backend/access/transam/xact.c | 4 +- src/backend/storage/lmgr/README | 2 +- src/backend/storage/lmgr/lock.c | 91 ++++++++++++++++++++++++++++++------- src/backend/storage/lmgr/proc.c | 19 +++++--- src/backend/tcop/postgres.c | 6 +- src/include/storage/lock.h | 1 + src/include/storage/proc.h | 2 +- 7 files changed, 94 insertions(+), 31 deletions(-)
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