| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Kris Kennaway <kris(at)obsecurity(dot)org> |
| Cc: | "Marc G(dot) Fournier" <scrappy(at)postgresql(dot)org>, pgsql-hackers(at)postgresql(dot)org, freebsd-stable(at)freebsd(dot)org |
| Subject: | Re: semaphore usage "port based"? |
| Date: | 2006-04-03 03:26:52 |
| Message-ID: | 27571.1144034812@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
Kris Kennaway <kris(at)obsecurity(dot)org> writes:
> On Sun, Apr 02, 2006 at 11:17:49PM -0400, Tom Lane wrote:
>> I have no objection to doing that, so long as you are actually doing it
>> correctly. This example shows that each jail must have its own SysV
>> semaphore key space, else information leaks anyway.
> By default SysV shared memory is disallowed in jails.
Hm, the present problem seems to be about semaphores not shared memory
... although I'd not be surprised to find that there's a similar issue
around shared memory. Anyway, if FBSD's position is that they are
uninterested in supporting SysV IPC in connection with jails, then I
think the Postgres project position has to be that we are uninterested
in supporting Postgres inside FBSD jails. Sorry Marc :-(
regards, tom lane
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