Date: Wed, 13 Sep 2017 10:56:55 -0500 From: Dan Nelson <dnelson_1901@yahoo.com> To: Borja Marcos <borjam@sarenet.es> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: Unusually high "Wired" memory Message-ID: <CAG0h62QkdYc_74i4jqBNU2FpkhRdai095HP705xqNC2E-Y=TqQ@mail.gmail.com>
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2017-09-12 1:27 GMT-05:00 Borja Marcos <borjam@sarenet.es>: > > > > On 11 Sep 2017, at 11:25, Borja Marcos <borjam@sarenet.es> wrote: > > > >> Since I=E2=80=99ve updated a machine to 11.1-STABLE I am seeing a rath= er unusual growth of Wired memory. > >> > >> Any hints on what might have changed from 11-RELEASE to 11.1-RELEASE a= nd 11.1-STABLE? > > vmstat -z and vmstat -m follow > > % vmstat -z > ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP > [...] > g_bio: 376, 0,15235172, 248,477839025, 0, 0 > [...] 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 ).
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