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Injection points created under injection_points_set_local() are cleaned up by a shmem_exit() callback. The spinlock used by the module would be hold while calling InjectionPointDetach(), which is incorrect as spinlocks should avoid external calls while hold. This commit changes the shmem_exit() callback to detach the points in three steps with the spinlock acquired twice, knowing that the injection points should be around with the conditions related to them: - Scans for the points to detach in a first loop, while holding the spinlock. - Detach them. - Remove the registered conditions. It is still possible for other processes to detach local points concurrently of the callback. I have wanted to restrict the detach, but Noah has mentioned that he has in mind some cases that may require this capability. No tests in the tree based on injection points need that currently. Thinko in f587338dec87. Reported-by: Noah Misch Reviewed-by: Noah Misch Discussion: https://postgr.es/m/20240501231214.40@rfd.leadboat.com
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 (but see also below) examples/ Demonstration programs for libpq that double as regression tests via "make check" isolation/ Tests for concurrent behavior at the SQL level kerberos/ Tests for Kerberos/GSSAPI authentication and encryption ldap/ Tests for LDAP-based authentication 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