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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 7AEE1C33CB6 for ; Thu, 16 Jan 2020 11:34:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3F668214AF for ; Thu, 16 Jan 2020 11:34:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579174445; bh=YN8j+7TwUOddatueYP+sV+PGeo3r1YYN2GmB54ztjPY=; h=From:Date:Subject:To:Cc:List-ID:From; b=TlHo/hGGUsA2esmX+9nkdqkt2+T2jnz6Ie46s8gqrdGmmz17en+HFdeEZNtceZQHx m4HoF1mNqaMdBeEF8Yyh4ov79TwgH4tRbhWJtDgXvz7mcm+to3imgO0yt/3nQAa9p/ E3Z5WW8VjFjfRAnwsY7cEJtX6rS75e5WsmsxnR4s= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726684AbgAPLeE (ORCPT ); Thu, 16 Jan 2020 06:34:04 -0500 Received: from mail.kernel.org ([198.145.29.99]:60050 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725999AbgAPLeD (ORCPT ); Thu, 16 Jan 2020 06:34:03 -0500 Received: from mail-lf1-f52.google.com (mail-lf1-f52.google.com [209.85.167.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9DAAF207E0; Thu, 16 Jan 2020 11:34:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579174443; bh=YN8j+7TwUOddatueYP+sV+PGeo3r1YYN2GmB54ztjPY=; h=From:Date:Subject:To:Cc:From; b=lwY7747UA0/Ad4hTnw3SuGpIbJLCbA9KszNs9fiwKdqyA8sf4ZzW4ey+ZCN8L4OwB CiynAfoRzY8dRVxv86yNAEu37zYMydSQVQRJFex1tw24c+0+hbPqSRvwZwpyO6k/sP DXhHRJTxjpbom+9Fo99N0g4h4i8TfA4cyGiCTRbs= Received: by mail-lf1-f52.google.com with SMTP id 9so15319076lfq.10; Thu, 16 Jan 2020 03:34:02 -0800 (PST) X-Gm-Message-State: APjAAAVv71VuHjIYvykVbzn5rYJxyB4OhvzNmORfxVdukcBdjROUYksK Z+of5szNtiFnp+nWByuW+ZfEccpJ33r7XXI4oaU= X-Google-Smtp-Source: APXvYqz815lAbzRqNAw2pY9/fYiNRD+W0UE/cSdNWD7dLJrFmYug7V2XJAKoNgovEbrpV53MUMWcopTLiK8WGABLR3k= X-Received: by 2002:a19:ca0f:: with SMTP id a15mr2219060lfg.198.1579174440744; Thu, 16 Jan 2020 03:34:00 -0800 (PST) MIME-Version: 1.0 From: Krzysztof Kozlowski Date: Thu, 16 Jan 2020 12:33:49 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: [BISECT BUG] NFS v4 root not working after 6d972518b821 ("NFS: Add fs_context support.") To: Trond Myklebust , Anna Schumaker , linux-nfs@vger.kernel.org, "linux-kernel@vger.kernel.org" , David Howells , Al Viro , Scott Mayhew Cc: Arnd Bergmann Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, Bisect pointed to 6d972518b821 ("NFS: Add fs_context support.") for failures of mounting NFS v4 root on my boards: mount.nfs4 -o vers=4,nolock 192.168.1.10:/srv/nfs/odroidhc1 /new_root [ 24.980839] NFS4: Couldn't follow remote path [ 24.986201] NFS: Value for 'minorversion' out of range mount.nfs4: Numerical result out of range https://krzk.eu/#/builders/21/builds/1692 Full console log: https://krzk.eu/#/builders/21/builds/1692/steps/14/logs/serial0 Enabling NFS v4.1 in defconfig seems to help. I can send patches for this (for defconfigs) but probably the root cause should be fixed as well. Environment: 1. Arch ARM Linux 2. exynos_defconfig 3. Exynos boards (Odroid XU3, etc), ARMv7, octa-core (Cortex-A7+A15), Exynos5422 SoC 4. systemd, boot up with static IP set in kernel command line 5. No swap 6. Kernel, DTB and initramfs are downloaded with TFTP 7. NFS root from NFSv4 server Let me know if you need more details. Best regards, Krzysztof