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Subject: Re: Unusually high "Wired" memory
From: Borja Marcos <borjam@sarenet.es>
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Date: Thu, 14 Sep 2017 10:25:33 +0200
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To: Dan Nelson <dnelson_1901@yahoo.com>
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> On 13 Sep 2017, at 17:56, Dan Nelson via freebsd-stable =
<freebsd-stable@freebsd.org> wrote:
>=20
> 2017-09-12 1:27 GMT-05:00 Borja Marcos <borjam@sarenet.es>:
>>=20
>>=20
>>> On 11 Sep 2017, at 11:25, Borja Marcos <borjam@sarenet.es> wrote:
>>>=20
>>>> Since I=E2=80=99ve updated a machine to 11.1-STABLE I am seeing a =
rather unusual growth of Wired memory.
>>>>=20
>>>> Any hints on what might have changed from 11-RELEASE to =
11.1-RELEASE and 11.1-STABLE?
>>=20
>> vmstat -z and vmstat -m follow
>>=20
>> % vmstat -z
>> ITEM                   SIZE  LIMIT     USED     FREE      REQ FAIL =
SLEEP
>> [...]
>> g_bio:                  376,      0,15235172,     248,477839025,   0, =
  0
>> [...]
>=20
>=20
> I think this is the problem - you're leaking g_bio objects (5.7 GB
> currently allocated if you multiply SIZE*USED).  I'm seeing the same
> thing and it looks like it started after the recent ZFS merges from
> -current.  I have filed a bugreport with some more info (
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222288 ).

Confirmed, thank you :)

Going back to RELENG-11.1 solved it, so the slip must be quite recent.




Borja.