From owner-freebsd-fs@freebsd.org Fri May 18 14:41:04 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7C2BBEAA3E3 for ; Fri, 18 May 2018 14:41:04 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id F33B478D6E for ; Fri, 18 May 2018 14:41:03 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: by mailman.ysv.freebsd.org (Postfix) id B3AC8EAA3E2; Fri, 18 May 2018 14:41:03 +0000 (UTC) Delivered-To: fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A118AEAA3E1 for ; Fri, 18 May 2018 14:41:03 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: from mail-qt0-x22a.google.com (mail-qt0-x22a.google.com [IPv6:2607:f8b0:400d:c0d::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 31D7978D6B for ; Fri, 18 May 2018 14:41:03 +0000 (UTC) (envelope-from rysto32@gmail.com) Received: by mail-qt0-x22a.google.com with SMTP id m9-v6so10539684qtb.5 for ; Fri, 18 May 2018 07:41:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=Z8Tt9+Yapf6c4L8XstiwvDlN3Ixeje1wwD8qmYeMnFI=; b=V/LSbHM8ahQW56Gj7LS0kYYB0lX5SSLkNS7Y2mkQ7chYmOoX7eW5Up3HILmlcKb+/n x2FlnRLkYdh4+dEA8WBZXf76HGLG4NSSsNw7IBAF7lmdhSViYXH+sjuHPNRyKRzMBko8 8A2D+rBy7SNVNg4Y3v43MggjwHwn5NnJTTBdH0Re2qOMrGRLQQDPDq48fuf+fHA6Cyvp tUO4wBVMl17If1cLoj58/FuMeUIgqMDWdHy/CiwavxV0xzwoHGD4XaRd5kg11RYM2xtx JeaOrE6Zt+OWqNx6fChdksgjnby7xXEWGK5mFjDBvVLAsFhdAiyZkjdYAs2ezMNOIY+d yd2A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Z8Tt9+Yapf6c4L8XstiwvDlN3Ixeje1wwD8qmYeMnFI=; b=Ic5L4ucAm7+Um/caWmM1JQsJjDIjCW5YLPRC63UGzxvSq0IE0Tj8WwIsbVFFNeSwOj cAZfrPYFIX89CA0De63lAGay8Enarmpemrcdvh+n7PMhCNmi7xaJqqcm0PsZ/ypiNOD1 Fzkfa7b1iTPWAfkB2UsQ//0dyTcLOfYZ8l2PoWG760GAyyYHuobDMvU737lRWTQWICr2 5DAWeNiETWYsHdUr8/36Skrnlz+J68S+xVeIdUexWx9j2vFiVUAjGf7GiscNdBgyFmwe 5olYrC1En3L+uclhdxLSMT2vtbcggd6s7O95J7pT/AA/PL3Lk5wDm3laFi1nkCU+JYGK 4UOg== X-Gm-Message-State: ALKqPweeVoL8XsdDKeNHuLa2kl+75JAO8BVigrkRlEuEleGjmvenkXXn MMmXRTk5VPnlDur85lAu4mLC4VO2hixuehDI7ROkaA== X-Google-Smtp-Source: AB8JxZowFxqtH7SNNidVHzMTH4v6Tpf9gmZababQjbgE2Akb6wDNHHcWwGA80xZH0/JtCl1RAW06FNKboUqNvhvUXyM= X-Received: by 2002:ac8:3487:: with SMTP id w7-v6mr9486090qtb.220.1526654462217; Fri, 18 May 2018 07:41:02 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac8:6707:0:0:0:0:0 with HTTP; Fri, 18 May 2018 07:41:01 -0700 (PDT) From: Ryan Stone Date: Fri, 18 May 2018 10:41:01 -0400 Message-ID: Subject: "nfsd server cache flooded" To: "freebsd-fs@freebsd.org" Content-Type: text/plain; charset="UTF-8" X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 May 2018 14:41:04 -0000 Earlier in the week I tried running a buildworld on a 11.1-RELEASE system that had /usr/obj mounted via nfsv4 from a 12-CURRENT server. After some time, the build hung I saw this message start repeating in /var/log/messages: May 15 08:23:03 rstone-server kernel: nfsd server cache flooded, try increasing vfs.nfsd.tcphighwater In 12-CURRENT, sysctl vfs.nfsd.tcphighwater defaults to 0, so I have no idea what a reasonable value to set would be. Any advice?