From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 875D3C11F67 for ; Tue, 29 Jun 2021 10:40:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6AFBB61DA7 for ; Tue, 29 Jun 2021 10:40:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233163AbhF2Km3 (ORCPT ); Tue, 29 Jun 2021 06:42:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232410AbhF2KmX (ORCPT ); Tue, 29 Jun 2021 06:42:23 -0400 Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0563FC061760 for ; Tue, 29 Jun 2021 03:39:56 -0700 (PDT) Received: by mail-qk1-x72e.google.com with SMTP id 65so13092720qko.5 for ; Tue, 29 Jun 2021 03:39:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lucidpixels.com; s=google; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding:thread-index:content-language; bh=gpnegibjESzjLmnBYt7iWeZ4TVX2erbyB91qo1q1cTY=; b=dwa990JYjfCO2j4/nhKKkViSHjS9L0H+K1FtX5K9G9PkQxj65m4j03+XZDG/UUro+y W/O6XljGt5pgPmYmMwmg94HgN1hv6RdddnQP/po2408nMAREoBWOSuAppzSh0NfAiTaB +ochfxrtkyQ+LMiJezC9vg1jIrcxfW57ZlEz8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding:thread-index:content-language; bh=gpnegibjESzjLmnBYt7iWeZ4TVX2erbyB91qo1q1cTY=; b=fXR4xT/352ZFoVkW5GL1aud613nw+hZoBwzDGtn3u3Ey/yVSJmmb7lSlS4OU/hWrW3 ADGZaPbuKRgklPrxZxukWRAUt8pnufe2GjVbSRp7Ts396wEF+rGn2oSlcyskmGRYzG4L SopwTazEDFpcqFBAJV1nz4CYazGHYmf/zmxYkqEjDjB3DokIAyVYC1JZTmq85gABqG0P uD6jaT8yVEl7t9ispvulCemqqIyvLNgJLNJ1vlQy/P59O14ylqOUJ5elY+IU+uCp8fi4 omNoUZFxzarYEI23LaNo7i91iKI29ucJKeyk0X1GZ/z+wn/lGnnSaPmp12nyNKfPpJBA WpHA== X-Gm-Message-State: AOAM533fExSqfkKJo4doGJOlIHWqHPs173Ahwo6BDwx/pbBTQ0e6l+Mw Lx9OW5XGXS9DyU1Cs7g0bCds36UtOIFiRlrK X-Google-Smtp-Source: ABdhPJwkPNLdoyLz2ROEczMKE9xRmrZDvc+8ruNBqbNaV4JsBFLfcrQ/7KdmiosAKgQZiWEKzcdjnQ== X-Received: by 2002:ae9:ed52:: with SMTP id c79mr14710480qkg.260.1624963194427; Tue, 29 Jun 2021 03:39:54 -0700 (PDT) Received: from WARPC ([2600:4040:400a:8500::f7aa]) by smtp.gmail.com with ESMTPSA id s6sm423535qkc.125.2021.06.29.03.39.53 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 29 Jun 2021 03:39:53 -0700 (PDT) From: "Justin Piszcz" To: , Subject: linux 5.13 kernel regression for NFS server Date: Tue, 29 Jun 2021 06:39:53 -0400 Message-ID: <004d01d76cd3$18db1830$4a914890$@lucidpixels.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: Adds0xh8TyPplr3rRaqlXbtYqWYwkg== Content-Language: en-us Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, ISSUE: Can no longer mount NFS server(5.13) share. WORKAROUND: Reverting back to the 5.13-rc7 kernel for the NFS server, all clients can then mount the share. Kernel 5.13 vs. 5.13-rc7 for x86_64 With Kernel 5.13-rc7: ## mount is successful (from multiple clients, phone, tv, other Linux client) # mount 192.168.1.2:/r1 /r1 # With Kernel 5.13 (hangs from multiple clients, phone, tv, other Linux client) ## mount hangs: # mount 192.168.1.2:/r1 /r1 (strace output where it is hanging) ... clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f2285e303d0) = 1741 wait4(1741, 0x7ffeaab6ce08, 0, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set) --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- wait4(1741, No user changes in the kernel .config other than the comment for the version text: --- config-20210628.1624867695 2021-06-28 04:08:15.152781940 -0400 +++ config-20210628.1624867962 2021-06-28 04:12:42.591981706 -0400 @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/x86 5.13.0-rc7 Kernel Configuration +# Linux/x86 5.13.0 Kernel Configuration # CONFIG_CC_VERSION_TEXT="gcc (Debian 10.2.1-6) 10.2.1 20210110" CONFIG_CC_IS_GCC=y Justin.