From owner-freebsd-questions@freebsd.org Wed Aug 25 13:54:36 2021 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 81D1B674FC0 for ; Wed, 25 Aug 2021 13:54:36 +0000 (UTC) (envelope-from parv.0zero9@gmail.com) Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4GvnXW4RrCz4nsN for ; Wed, 25 Aug 2021 13:54:35 +0000 (UTC) (envelope-from parv.0zero9@gmail.com) Received: by mail-wr1-x436.google.com with SMTP id d26so16256725wrc.0 for ; Wed, 25 Aug 2021 06:54:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=C0GhUDHTX6q8/8zo27TZayhXA85bCvmxO1tvR0O8FlY=; b=mQQ9zAvOXMgJTS99WS4ZoigMHj3s2ZOlkf2+3qVu7gkW/Pyj+ysPRRWVg6KDn6qwUv w7HHi37uYOeSvk5owLlz5cGbvJqUNPJ1+VWNu76+cKE5D+bvsMTGn5yNshd9E9DKhkCb D4L6fFiITDHtpp9+A0uNdNkhKADdgkounjnyVmtB9JP07XYhYOKfJ73wpOdBU4wd3e4h OHdcS2AorYxD86GzPjKyydIEMSG2XEWP3tOaeakEXaLuR5WmqzkLJKsWf7ImGmm40jJt u7XGYYnXocZ0yDv4hjA7Ph696ZiMKdHd/8Oz9bNqm71CwnYQWCJ/RHEO6EAIa6U8bw66 nAeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=C0GhUDHTX6q8/8zo27TZayhXA85bCvmxO1tvR0O8FlY=; b=dq92rjVSYdb5EbG9xFt1aElwcNv4jFeTidEjiQUtBffbOa+SExorladOQJzEkymMp6 /VcEkyQhfSIAPUezmW0cdiKsiqtIrDu0LPjBNtAf27Crn4Hw/NCksBBntwjtTXJBzvNK EZXKEvXdmqriWVBweBpWXN1vB7NrQ/xd/0UA0mbDo5ZbIWmpK8+x1WGdVIuSdEuerVju 5OxVtPh4jsua8AskLFsPGWwI4iYtgYOkYn5rYdaF97MU+Oc/uA5C+HqgJf3/oSI6oUQY 41CtBRGxVKwkF1rX5VtWS8BqWdVgFg5bcsi6JnGeqoNkMIJsJfiVL4z8S84ijre427u9 x6Kw== X-Gm-Message-State: AOAM533K8UARia0z6kWlg+N533iYGxOszYkPVsDUaYnKm5DXaytXXjo9 XkVT5sFQ7e/Q+LcdoMrnldtb05zN9gTLfeg3sEu48G/Kcj4= X-Google-Smtp-Source: ABdhPJx8MQuVZthOFuA4aHL1jySwkU3hybkE853OWtlxnRT7DWNJKELe7gXd0sx80PbRUsbEw7WuBHxlV4k+FwheSBs= X-Received: by 2002:adf:cd10:: with SMTP id w16mr26308126wrm.404.1629899668190; Wed, 25 Aug 2021 06:54:28 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: "parv/freebsd" Date: Wed, 25 Aug 2021 03:52:46 -1000 Message-ID: Subject: Re: NFS v3 - FreeBSD 12 server connection getting timed out on CentOS 8 client To: freebsd-questions@freebsd.org X-Rspamd-Queue-Id: 4GvnXW4RrCz4nsN X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=mQQ9zAvO; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of parv0zero9@gmail.com designates 2a00:1450:4864:20::436 as permitted sender) smtp.mailfrom=parv0zero9@gmail.com X-Spamd-Result: default: False [-0.07 / 15.00]; R_SPF_ALLOW(-0.20)[+ip6:2a00:1450:4000::/36:c]; FREEMAIL_FROM(0.00)[gmail.com]; TO_DN_NONE(0.00)[]; MID_RHS_MATCH_FROMTLD(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; ASN(0.00)[asn:15169, ipnet:2a00:1450::/32, country:US]; TAGGED_FROM(0.00)[freebsd]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; NEURAL_SPAM_MEDIUM(1.00)[1.000]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_SPAM_SHORT(0.93)[0.932]; RCVD_IN_DNSWL_NONE(0.00)[2a00:1450:4864:20::436:from]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-questions] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.34 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Aug 2021 13:54:36 -0000 On Tue, Aug 24, 2021 at 2:20 PM parv/freebsd wrote: Hi me, On Sun, Aug 22, 2021 at 8:05 PM parv/freebsd wrote: > > (I have rearranged my quoted email) > > [CentOS 8 NFS v3 client sometimes prints ...] > >> Aug 21 08:31:04 [CLIENT] kernel: watchdog: BUG: soft lockup - CPU#0 stuck >> for 22s! [kworker/u24:0:672075] >> >> Aug 21 08:31:04 [CLIENT] kernel: watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/u24:10:672632] >> >> ... > How do I go about investigating or solve this? > > ... > I have collected tcpdump output on both server & client ... > > https://github.com/parv/centos8-nfs3-issue/ > ... While trying to find if there is an update for CentOS 8 "nfs-utils" package, I came upon the thread on "linux-nfs" mailing list ... CPU lockup in or near new filecache code, 201912, https://marc.info/?l=linux-nfs&m=157599524312895&w=2 ; a patch, 201912, https://marc.info/?l=linux-nfs&m=157609449120027&w=2 ; more to come, 202001 https://marc.info/?l=linux-nfs&m=157807452103938&w=2 ? Now the question is will the fix be available on CentOS 8 anytime soon, as above thread was concerned with, AIUI, kernel 5.5 (CentOS 8 kernel is hovering around 4.18)? Not a FreeBSD issue anymore, however, seems like. - parv