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Date:      Mon, 16 Mar 2015 19:52:10 -0400
From:      J David <j.david.lists@gmail.com>
To:        Konstantin Belousov <kostikbel@gmail.com>
Cc:        freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: Significant memory leak in 9.3p10?
Message-ID:  <CABXB=RSt0MgEyoJs4o5utTg7oSu0RZ%2B-czeY0k-Ro%2BfRubK3kQ@mail.gmail.com>
In-Reply-To: <20150316232404.GM2379@kib.kiev.ua>
References:  <CABXB=RRhynY5FWvw3tHrLFRyitTemavXYLBpev5Mjs_kPqimXA@mail.gmail.com> <20150316232404.GM2379@kib.kiev.ua>

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On Mon, Mar 16, 2015 at 7:24 PM, Konstantin Belousov
<kostikbel@gmail.com> wrote:
> There are a lot of possibilities to create persistent anonymous shared
> memory objects.  Not complete list is tmpfs mounts, swap-backed md disks,
> sysv shared memory, possibly posix shared memory (I do not remember which
> implementation is used in stable/9).

If that's the explanation, how could it be
detected/measured/investigated/resolved/prevented?

Under ordinary circumstances, machines will go run like this for days/weeks:

Mem: 549M Active, 3623M Inact, 567M Wired, 3484K Cache, 827M Buf, 3156M Free
Swap: 1024M Total, 1024M Free

Then, when this happens, it rapidly degrades from that to so bad that
processes start getting killed for being out of swap space.

Thanks!


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