From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Andres Freund <andres(at)2ndquadrant(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Gurjeet Singh <gurjeet(at)singh(dot)im>, Peter Eisentraut <peter_e(at)gmx(dot)net>, PGSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: /proc/self/oom_adj is deprecated in newer Linux kernels |
Date: | 2014-06-10 15:40:25 |
Message-ID: | 31103.1402414825@sss.pgh.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
Andres Freund <andres(at)2ndquadrant(dot)com> writes:
> On 2014-06-10 11:14:43 -0400, Tom Lane wrote:
>> Because it would convert the intended behavior (postmaster and only
>> postmaster is exempt from OOM kill) into a situation where possibly
>> all of the database processes are exempt from OOM kill, at the whim
>> of somebody who should not have the privilege to decide that.
> Meh^3. By that argument we need to forbid superusers to create any form
> of untrusted functions. Forbid anything that does malloc(), system(),
> fork(), whatever from a user's influence.
That's utter and complete nonsense. We're discussing an operation that is
root-privileged (ie, lowering a process's OOM score), not random stuff
that unprivileged processes can do.
regards, tom lane
From | Date | Subject | |
---|---|---|---|
Next Message | Andres Freund | 2014-06-10 15:45:36 | Re: /proc/self/oom_adj is deprecated in newer Linux kernels |
Previous Message | Robert Haas | 2014-06-10 15:39:13 | Re: /proc/self/oom_adj is deprecated in newer Linux kernels |