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| author | Thomas Munro <tmunro@postgresql.org> | 2020-02-01 14:29:13 +1300 |
|---|---|---|
| committer | Thomas Munro <tmunro@postgresql.org> | 2020-02-01 22:57:46 +1300 |
| commit | 600387f5dd286d6ca72a578b09ef3765f45d95e6 (patch) | |
| tree | 8efba0ef9dc7e2c4cb81f1bc07a69c98a599e693 /src/backend/access/gist/gistutil.c | |
| parent | 25dc267a1be573c36c4e40dce651ae462f17eb9e (diff) | |
| download | postgresql-600387f5dd286d6ca72a578b09ef3765f45d95e6.tar.gz postgresql-600387f5dd286d6ca72a578b09ef3765f45d95e6.zip | |
Fix memory leak on DSM slot exhaustion.
If we attempt to create a DSM segment when no slots are available,
we should return the memory to the operating system. Previously
we did that if the DSM_CREATE_NULL_IF_MAXSEGMENTS flag was
passed in, but we didn't do it if an error was raised. Repair.
Back-patch to 9.4, where DSM segments arrived.
Author: Thomas Munro
Reviewed-by: Robert Haas
Reported-by: Julian Backes
Discussion: https://postgr.es/m/CA%2BhUKGKAAoEw-R4om0d2YM4eqT1eGEi6%3DQot-3ceDR-SLiWVDw%40mail.gmail.com
Diffstat (limited to 'src/backend/access/gist/gistutil.c')
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