Fix broken mmap failure-detection code, and improve error message.
Per an observation by Thom Brown that my previous commit made an
overly large shmem allocation crash the server, on Linux.
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/39715af23ae459684963c350dd69eafa2d502e7e
Modified Files
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src/backend/port/sysv_shmem.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
