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| author | Robert Haas <rhaas@postgresql.org> | 2015-08-04 12:58:54 -0400 |
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| committer | Robert Haas <rhaas@postgresql.org> | 2015-08-04 13:05:43 -0400 |
| commit | cd52e4a2b945403659219350c4d4c6e6539a1e11 (patch) | |
| tree | 896cbbfe8a4abee900527fbce76b468a8284b875 /src/backend/access/gist/gistbuild.c | |
| parent | 9d7d0e640c21bfa36e1eeb7e7c9fcdbb2cfb9763 (diff) | |
| download | postgresql-cd52e4a2b945403659219350c4d4c6e6539a1e11.tar.gz postgresql-cd52e4a2b945403659219350c4d4c6e6539a1e11.zip | |
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/access/gist/gistbuild.c')
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