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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 26450C43331 for ; Thu, 5 Sep 2019 16:47:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EB11D206DE for ; Thu, 5 Sep 2019 16:47:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389917AbfIEQrG (ORCPT ); Thu, 5 Sep 2019 12:47:06 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:38338 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389741AbfIEQrF (ORCPT ); Thu, 5 Sep 2019 12:47:05 -0400 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92.1 #3 (Red Hat Linux)) id 1i5uuR-0002Cj-Kq; Thu, 05 Sep 2019 16:47:00 +0000 Date: Thu, 5 Sep 2019 17:46:59 +0100 From: Al Viro To: Naresh Kamboju Cc: Christoph Hellwig , Qian Cai , linux-fsdevel@vger.kernel.org, LKML , Linus Torvalds Subject: Re: "fs/namei.c: keep track of nd->root refcount status" causes boot panic Message-ID: <20190905164659.GO1131@ZenIV.linux.org.uk> References: <7C6CCE98-1E22-433C-BF70-A3CBCDED4635@lca.pw> <20190903123719.GF1131@ZenIV.linux.org.uk> <20190903130456.GA9567@infradead.org> <20190903134832.GH1131@ZenIV.linux.org.uk> <20190903135024.GA8274@infradead.org> <20190903135354.GI1131@ZenIV.linux.org.uk> <20190903153930.GA2791@infradead.org> <20190903175610.GM1131@ZenIV.linux.org.uk> <20190904123940.GA24520@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.0 (2019-05-25) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 05, 2019 at 02:43:12PM +0530, Naresh Kamboju wrote: > Hi Christoph and Al Viro, > > Linux next 20190904 boot PASS now. > May i know which patch fixed this problem ? commit 84a2bd39405ffd5fa6d6d77e408c5b9210da98de Author: Al Viro Date: Tue Jul 16 21:20:17 2019 -0400 fs/namei.c: keep track of nd->root refcount status And I'm not going to abstain from folding the trivial fix (LOOKUP_ROOT_GRABBED had been given the same value as LOOKUP_EMPTY) into the commit. Sorry. I don't know how to tell CI systems out there about cases like that ("earlier version of this commit used to have a bug, fix folded in"). Something like Supersedes: might or might not be useful for tracking; not sure.