From owner-freebsd-stable@FreeBSD.ORG Fri Dec 5 00:23:36 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 4A7BBFAC for ; Fri, 5 Dec 2014 00:23:36 +0000 (UTC) Received: from mail-pa0-x235.google.com (mail-pa0-x235.google.com [IPv6:2607:f8b0:400e:c03::235]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 16EB6E62 for ; Fri, 5 Dec 2014 00:23:36 +0000 (UTC) Received: by mail-pa0-f53.google.com with SMTP id kq14so18743985pab.26 for ; Thu, 04 Dec 2014 16:23:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:content-type:subject:message-id:date:to:mime-version; bh=PI3r+ki9iunJyuaKwU8VWGSFZ1igYyiU074xi9BqxcY=; b=V4R+saRROuC6pMGjlzYgHB5caZ/vMYLIkJbnJeCd+n5O54oWYVVokTaMqdEvBXoR82 dtnZ5Ir1CspcoC7O9bCewpugD0ComyUovk4ZU0S/KDV9GO7Nt6klyWCnZZab9YzJyRga uNAHRD0p/k9OPYQ8yetXm8j2vbZh55Z9DJ89JPY8VGLFEbYCjBQNESQwZUwJdYMfy/b8 +bWq+yv68g4r8V/UMQcSEAKiPbCvIS6KorEq+Cr1exBmmFZXL83FTyqbM/Aede69ULBV Eun6jptKGrCeWfw7dUivCqZ0PB9aHnmpzUV/+8U8jDLnV9PN/fhtS0Zc8drvocl6xMaj cUWw== X-Received: by 10.68.201.226 with SMTP id kd2mr29997549pbc.75.1417739015625; Thu, 04 Dec 2014 16:23:35 -0800 (PST) Received: from [10.51.2.189] ([199.101.130.202]) by mx.google.com with ESMTPSA id a13sm24502340pdm.44.2014.12.04.16.23.33 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 04 Dec 2014 16:23:34 -0800 (PST) From: George Kola Subject: Freed UMA keg Lost pages of memory Message-Id: <34C30B88-EB9C-4AF6-B986-257170604F1C@gmail.com> Date: Thu, 4 Dec 2014 16:23:33 -0800 To: freebsd-stable@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 8.1 \(1993\)) X-Mailer: Apple Mail (2.1993) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2014 00:23:36 -0000 We are running FreeBSD 10.1 and we had 4 1 TB SSDs in L2ARC which we = removed and made into a separate zpool.=20 I ran sysctl and noticed a strange message showing this lost memory. I have pasted output of sysctl -a |grep UMA. Any idea why this is = happening ? Any fixes or suggested solution ? hosts (1/10): sjc1-prod1-01.voxer.com Freed UMA keg (zio_data_buf_1024) was not empty (333 items). Lost 171 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (138 items). Lost 583 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (84 items). Lost 148 = pages of memory. Freed UMA keg (zio_data_buf_1024) was not empty (380 items). Lost 175 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (154 items). Lost 328 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (67 items). Lost 91 = pages of memory. Freed UMA keg (zio_data_buf_1024) was not empty (256 items). Lost 95 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (170 items). Lost 383 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (117 items). Lost 257 = pages of memory. hosts (1/10): sjc1-prod1-02.voxer.com Freed UMA keg (zio_data_buf_1024) was not empty (336 items). Lost 175 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (157 items). Lost 638 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (83 items). Lost 150 = pages of memory. Freed UMA keg (zio_data_buf_1024) was not empty (329 items). Lost 140 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (216 items). Lost 425 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (85 items). Lost 130 = pages of memory. Freed UMA keg (zio_data_buf_1024) was not empty (437 items). Lost 173 = pages of memory. Freed UMA keg (zio_data_buf_1536) was not empty (165 items). Lost 576 = pages of memory. Freed UMA keg (zio_data_buf_2048) was not empty (103 items). Lost 273 = pages of memory. Thanks, George