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Because sigsetjmp() will restore the initial state with signals blocked, the code path in bgworker.c for reporting an error and exiting would execute that way. Usually this is fairly harmless; but if a parallel worker had an error message exceeding the shared-memory communication buffer size (16K) it would lock up, because it would wait for a resume-sending signal from its parallel leader which it would never detect. To fix, just unblock signals at the appropriate point. This can be shown to fail back to 9.6. The lack of parallel query infrastructure makes it difficult to provide a simple test case for 9.5; but I'm pretty sure the issue exists in some form there as well, so apply the code change there too. Vignesh C, reviewed by Bharath Rupireddy, Robert Haas, and myself Discussion: https://postgr.es/m/CALDaNm1d1hHPZUg3xU4XjtWBOLCrA+-2cJcLpw-cePZ=GgDVfA@mail.gmail.com |
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| authentication | ||
| examples | ||
| isolation | ||
| kerberos | ||
| ldap | ||
| locale | ||
| mb | ||
| modules | ||
| perl | ||
| recovery | ||
| regress | ||
| ssl | ||
| subscription | ||
| thread | ||
| Makefile | ||
| README | ||
README
PostgreSQL tests ================ This directory contains a variety of test infrastructure as well as some of the tests in PostgreSQL. Not all tests are here -- in particular, there are more in individual contrib/ modules and in src/bin. Not all these tests get run by "make check". Check src/test/Makefile to see which tests get run automatically. authentication/ Tests for authentication examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level locale/ Sanity checks for locale data, encodings, etc mb/ Tests for multibyte encoding (UTF-8) support modules/ Extensions used only or mainly for test purposes, generally not suitable for installing in production databases perl/ Infrastructure for Perl-based TAP tests recovery/ Test suite for recovery and replication regress/ PostgreSQL's main regression test suite, pg_regress ssl/ Tests to exercise and verify SSL certificate handling subscription/ Tests for logical replication thread/ A thread-safety-testing utility used by configure