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authorRobert Haas <rhaas@postgresql.org>2015-08-04 12:58:54 -0400
committerRobert Haas <rhaas@postgresql.org>2015-08-04 13:05:52 -0400
commit11ed4bab50ba6d80cc982cc4ae4675df705eda4b (patch)
tree1b89d600e3af9dee9b2ec54a14314449ca7b11ff /src/backend/executor/nodeLimit.c
parentbd8f768926f7eed520ba30bc135018ec24e0dd91 (diff)
Cap wal_buffers to avoid a server crash when it's set very large.
It must be possible to multiply wal_buffers by XLOG_BLCKSZ without overflowing int, or calculations in StartupXLOG will go badly wrong and crash the server. Avoid that by imposing a maximum value on wal_buffers. This will be just under 2GB, assuming the usual value for XLOG_BLCKSZ. Josh Berkus, per an analysis by Andrew Gierth.
Diffstat (limited to 'src/backend/executor/nodeLimit.c')
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