Date: Tue, 6 Mar 2018 11:34:56 -0600 From: Larry Rosenman <ler@lerctr.org> To: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> Cc: Trond =?utf-8?Q?Endrest=C3=B8l?= <Trond.Endrestol@fagskolen.gjovik.no>, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: Strange ARC/Swap/CPU on yesterday's -CURRENT Message-ID: <20180306173455.oacyqlbib4sbafqd@ler-imac.lerctr.org> In-Reply-To: <201803061640.w26GeA4g049742@pdx.rh.CN85.dnsmgr.net> References: <alpine.BSF.2.21.1803060854330.97064@mail.fig.ol.no> <201803061640.w26GeA4g049742@pdx.rh.CN85.dnsmgr.net>
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[-- Attachment #1 --] On Tue, Mar 06, 2018 at 08:40:10AM -0800, Rodney W. Grimes wrote: > > On Mon, 5 Mar 2018 14:39-0600, Larry Rosenman wrote: > > > > > Upgraded to: > > > > > > FreeBSD borg.lerctr.org 12.0-CURRENT FreeBSD 12.0-CURRENT #11 r330385: Sun Mar 4 12:48:52 CST 2018 root@borg.lerctr.org:/usr/obj/usr/src/amd64.amd64/sys/VT-LER amd64 > > > +1200060 1200060 > > > > > > Yesterday, and I'm seeing really strange slowness, ARC use, and SWAP use and swapping. > > > > > > See http://www.lerctr.org/~ler/FreeBSD/Swapuse.png > > > > I see these symptoms on stable/11. One of my servers has 32 GiB of > > RAM. After a reboot all is well. ARC starts to fill up, and I still > > have more than half of the memory available for user processes. > > > > After running the periodic jobs at night, the amount of wired memory > > goes sky high. /etc/periodic/weekly/310.locate is a particular nasty > > one. > > I would like to find out if this is the same person I have > reporting this problem from another source, or if this is > a confirmation of a bug I was helping someone else with. > > Have you been in contact with Michael Dexter about this > issue, or any other forum/mailing list/etc? Just IRC/Slack, with no response. > > If not then we have at least 2 reports of this unbound > wired memory growth, if so hopefully someone here can > take you further in the debug than we have been able > to get. What can I provide? The system is still in this state as the full backup is slow. > > > > > Limiting the ARC to, say, 16 GiB, has no effect of the high amount of > > wired memory. After a few more days, the kernel consumes virtually all > > memory, forcing processes in and out of the swap device. > > Our experience as well. > > ... > > Thanks, > -- > Rod Grimes rgrimes@freebsd.org -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 5708 Sabbia Drive, Round Rock, TX 78665-2106 [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQHABAABCgCqFiEEHjgknedhWzvJgwVzaXyZsatIp30FAlqe0T8sFIAAAAAAFQAO cGthLWFkZHJlc3NAZ251cGcub3JnbGVyQGxlcmN0ci5vcmdfFIAAAAAALgAoaXNz dWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDFFMzgy NDlERTc2MTVCM0JDOTgzMDU3MzY5N0M5OUIxQUI0OEE3N0QACgkQaXyZsatIp301 sgf/aUtGxOg7uDRbVfuS9FhkhuszYV4dovqrg6Et6zstUWrmJXbp43dBALl1e8OF vAiDWByns800aBeyZvlBKwSBKobpnVAccdvwcBZjDKNMAQIjo6ktk+dVzhNZwhha Qn234pEBeDfACE8al913Ae3q8UH2aBMZ9ANiXn+TpDdoKVjI1y9WISFBg9taWTMR G5xPoXy4SwEtAuPcO+Mn07+X9HiSvG9o9e277GC32WrOFsqQN95MdjEN7j8/Yzpr xZARXHkf68dqX2t6v0Gehj4sDhmAyhQJ4BO/cZgt1snmxw0ZF21gqYjep4WI/P3X 1W9D0Lulu75e5Y37bBIkUxTXEw== =MDT0 -----END PGP SIGNATURE-----help
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