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,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 81641C2D0E4 for ; Tue, 24 Nov 2020 21:24:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD44220866 for ; Tue, 24 Nov 2020 21:24:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=natalenko.name header.i=@natalenko.name header.b="YemTNNq4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730878AbgKXVYc (ORCPT ); Tue, 24 Nov 2020 16:24:32 -0500 Received: from vulcan.natalenko.name ([104.207.131.136]:46580 "EHLO vulcan.natalenko.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727966AbgKXVYb (ORCPT ); Tue, 24 Nov 2020 16:24:31 -0500 Received: from mail.natalenko.name (vulcan.natalenko.name [IPv6:fe80::5400:ff:fe0c:dfa0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by vulcan.natalenko.name (Postfix) with ESMTPSA id 0FD6F8AAF01; Tue, 24 Nov 2020 22:24:28 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=natalenko.name; s=dkim-20170712; t=1606253068; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Ef6cqFP5rtCRJRsC0pbk1fWvr/gryXZqDbAGKXuGsf0=; b=YemTNNq45rDxGydtNUuLfNISH2jCVhRnhFHbWWaQkIHyBHC8z5H2mHBnJJgQgB3Yu8chNo QHt/ssDLKmNm+6NK2wW1maqb6n4VypVcLAjoQRoROic98FDJzj+inNcewLtxuhOXD22zTT 4KnZC8NDVQfOTy9/M4k7aLYpgQAY+qc= MIME-Version: 1.0 Date: Tue, 24 Nov 2020 22:24:27 +0100 From: Oleksandr Natalenko To: Ard Biesheuvel Cc: David Laight , linux-efi , kernel list , matthew.garrett@nebula.com, jk@ozlabs.org, Greg Kroah-Hartman Subject: Re: Oops (probably) unmounting /oldroot/firmware/efi/efivars. In-Reply-To: References: <5f31cde519b941308412b3849197ee7c@AcuMS.aculab.com> User-Agent: Roundcube Webmail/1.4.9 Message-ID: X-Sender: oleksandr@natalenko.name Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi. On 24.11.2020 15:23, Ard Biesheuvel wrote: > Surely caused by > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/efivarfs?id=fe5186cf12e30facfe261e9be6c7904a170bd822 This also soaked through the stable queue into v5.9.11, and now the same BUG is triggered in the latest stable kernel. /cc Greg -- Oleksandr Natalenko (post-factum)