Re: /proc/self/oom_adj is deprecated in newer Linux kernels - Mailing list pgsql-hackers

From Tom Lane
Subject Re: /proc/self/oom_adj is deprecated in newer Linux kernels
Date
Msg-id 30709.1402413628@sss.pgh.pa.us
Whole thread Raw
In response to Re: /proc/self/oom_adj is deprecated in newer Linux kernels  (Andres Freund <andres@2ndquadrant.com>)
Responses Re: /proc/self/oom_adj is deprecated in newer Linux kernels  (andres@anarazel.de (Andres Freund))
List pgsql-hackers
Andres Freund <andres@2ndquadrant.com> writes:
> On 2014-06-10 11:04:52 -0400, Tom Lane wrote:
>> But anyway, yeah, the point of this feature is that the OOM priority
>> of the postmaster, and *only* the postmaster, should be raised.  Allowing
>> unprivileged people to break that is not attractive on any level.

> A superuser could already write a function that echoes into /proc?

Maybe I'm mistaken, but I thought once the fork_process code has reset our
process's setting to zero it's not possible to lower it again (without
privileges we'd not have).
        regards, tom lane



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