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=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_IN_DEF_DKIM_WL 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 D09FDC2BB9A for ; Thu, 17 Dec 2020 08:19:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B175238E5 for ; Thu, 17 Dec 2020 08:19:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727783AbgLQITk (ORCPT ); Thu, 17 Dec 2020 03:19:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35730 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727781AbgLQITk (ORCPT ); Thu, 17 Dec 2020 03:19:40 -0500 Received: from mail-qv1-xf31.google.com (mail-qv1-xf31.google.com [IPv6:2607:f8b0:4864:20::f31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B1E9CC061794 for ; Thu, 17 Dec 2020 00:18:59 -0800 (PST) Received: by mail-qv1-xf31.google.com with SMTP id l7so12909891qvt.4 for ; Thu, 17 Dec 2020 00:18:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=5VQg7Qq6tu9zxEiOHWHdVZC+h6E0ef9ck17g1uIq278=; b=JiQsm1xH9UW6+PT9gLz89MNIxj6KBYXql+gCE8wkihR9NAvOX7KpOCM/9cefnTv3lR q8I4WTdZo+TDkCag7yIKnHY+hhasYZAL6+fohN4tCZyLhBQZg+nJfFZ8MbjO1fZSzSs9 sKnFb57GeKrVj1XsWwkBxRApKKCiw0IAg3QWpAzIXksF/AyUvXwBiTbpyh0tWPh2bFlV OCuS8eyah3aaHvWroPQC07NszabIlb4iPIJMtM70rhFqUSKhqeyIS4SsLXep6pcEX/kN r17nqSa7So8qGDQSi/VXcKrJHGGTo+l1gDmrIKA7tbMYmR3rpdJEkAaUkkY1RJwgXmi5 eQvQ== 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:cc; bh=5VQg7Qq6tu9zxEiOHWHdVZC+h6E0ef9ck17g1uIq278=; b=Pq4M/d3UQ+7uBPQMzsC0aKUPt/t2+AUgGa3L6DPkHTq53lAM1meqR74NG8HTAF5ziF nS1myY1lr05wEieIC5CBLuJmMgJAscRbGssbWqfLxe8+9BD6S/WE0EWiyifqFu00hL7l Rz3LJt1yt0V6i6cgkWIwflJPgZeQO5ozlzcbVWsksa+7voUzRw5KdEYyCmMCcSI9SkqT hPYcidFdMknyrM9yensYC50EfbHWysLePytfctTbabAPxgYfGFwsw0g9LA10V/pdLP0k Q2xc8KmYjTrZK/WHQkk4YLnuQTeEd23nOPUeJz+4SJUdJH4qjwLuDoYhBCN8JQCVKNh/ Fj/w== X-Gm-Message-State: AOAM532s58q2MPdHvdJvC1nb3uQPGP/Z2NF8q2RUUZbzr/MP8ijuH6fq LVgNb9XTJUHXdZQ3zIaeTRot9crjxhpqukltfR4w/A== X-Google-Smtp-Source: ABdhPJyMAxUvSxPZNp7c19iP1MJhJ0bR5Yv/kJcGX8Ex7UvCtSI4xwbzgaZS8dJXfg+pTmJTHUo3J0yAza8eKWA295o= X-Received: by 2002:a0c:b20d:: with SMTP id x13mr47798309qvd.18.1608193138660; Thu, 17 Dec 2020 00:18:58 -0800 (PST) MIME-Version: 1.0 References: <000000000000f683660598300559@google.com> <0000000000002aca3d05b69503ac@google.com> In-Reply-To: <0000000000002aca3d05b69503ac@google.com> From: Dmitry Vyukov Date: Thu, 17 Dec 2020 09:18:45 +0100 Message-ID: Subject: Re: INFO: rcu detected stall in sys_open (2) To: syzbot Cc: Borislav Petkov , David Miller , David Howells , =?UTF-8?B?RnLDqWTDqXJpYyBXZWlzYmVja2Vy?= , Herbert Xu , "H. Peter Anvin" , linux-afs@lists.infradead.org, "open list:HARDWARE RANDOM NUMBER GENERATOR CORE" , LKML , Ingo Molnar , Ingo Molnar , syzkaller-bugs , Thomas Gleixner , "the arch/x86 maintainers" Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org On Wed, Dec 16, 2020 at 2:40 PM syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit 1d0e850a49a5b56f8f3cb51e74a11e2fedb96be6 > Author: David Howells > Date: Fri Oct 16 12:21:14 2020 +0000 > > afs: Fix cell removal > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=128ceadf500000 > start commit: c85fb28b Merge tag 'arm64-fixes' of git://git.kernel.org/p.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=de7f697da23057c7 > dashboard link: https://syzkaller.appspot.com/bug?extid=7ee926c5e237e614ccb1 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1227c177900000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13553f60500000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: afs: Fix cell removal > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection #syz fix: afs: Fix cell removal