Re: [v9.1] sepgsql - userspace access vector cache

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Kohei Kaigai <Kohei(dot)Kaigai(at)emea(dot)nec(dot)com>
Cc: Yeb Havinga <yebhavinga(at)gmail(dot)com>, PgHacker <pgsql-hackers(at)postgresql(dot)org>, Kohei KaiGai <kaigai(at)kaigai(dot)gr(dot)jp>
Subject: Re: [v9.1] sepgsql - userspace access vector cache
Date: 2011-08-18 17:21:44
Message-ID: CA+TgmoarcpAO=YsP=5487NBEwoT365dmGX0pwuwMvzue_Y7QeQ@mail.gmail.com
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On Thu, Aug 18, 2011 at 1:00 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> [more problems]

OK, I'm giving up for now. I hit two more snags:

1. chkselinuxenv uses "which", and a Fedora 15 minimal install doesn't
include that. I fixed that by installing "which", but maybe we ought
to be looking for a way to eliminate that dependency, like testing for
the commands you need by running them with --help, or something like
that.

2. restorecon doesn't correctly set the permissions for me on
~/project/bin/psql. I get:

[rhaas(at)f15selinux sepgsql]$ ls -Z ~/project/bin/psql
-rwxr-xr-x. rhaas rhaas unconfined_u:object_r:user_home_t:s0
/home/rhaas/project/bin/psql

Now I can fix that by applying bin_t manually, as suggested in the
documentation. However, that just moves the failure to library load
time. regression.diffs has multiple copies of this error message:

/home/rhaas/project/bin/psql: error while loading shared libraries:
libpq.so.5: failed to map segment from shared object: Permission
denied

Help!

Thanks,

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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