On Tue, Sep 26, 2017 at 10:12 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Thomas Munro <thomas.mu...@enterprisedb.com> writes: >> I think the problem here is that posix_fallocate() doesn't set errno. > > Huh. So the fact that it worked for me is likely because glibc's > emulation *does* allow errno to get set. > >> Will write a patch. > > Thanks, I'm out of time for today.
See attached, which also removes the ENOSYS stuff which I believe to be now useless. Does this make sense? Survives make check-world and my simple test procedure on a 3.10.0-327.36.1.el7.x86_64 system. postgres=# select test_dsm(1000000000000); ERROR: could not resize shared memory segment "/PostgreSQL.2043796572" to 1000000000000 bytes: No space left on device postgres=# select test_dsm(1000); test_dsm ---------- (1 row) -- Thomas Munro http://www.enterprisedb.com
0001-Fix-error-handling-for-posix_fallocate.patch
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