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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A03E4C636CD for ; Tue, 7 Feb 2023 14:40:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231476AbjBGOkk (ORCPT ); Tue, 7 Feb 2023 09:40:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50900 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231327AbjBGOjZ (ORCPT ); Tue, 7 Feb 2023 09:39:25 -0500 Received: from mail-io1-xd48.google.com (mail-io1-xd48.google.com [IPv6:2607:f8b0:4864:20::d48]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D2FE73EFE5 for ; Tue, 7 Feb 2023 06:37:44 -0800 (PST) Received: by mail-io1-xd48.google.com with SMTP id z23-20020a6b6517000000b00718172881acso9174609iob.7 for ; Tue, 07 Feb 2023 06:37:44 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=MHvmkN0/lz5e2uZSzTP0PAhn6qcrEsMnI/EGrNMX6Dc=; b=uHQTS0sc8tt8y4mzO3Heun2vwyZHtJww4Sp7SKV2pFAcgQec1My70+r/2WCc304RBe XEg3nGLJLfE0zYUBnF0EdjuqMOd4b4x0YqKyHWOr/suu1A6PVkx8ROmwnZEOCMFbGSy4 236RbdTes9yZ8H0pPldZGzUtUfN2bOq3WpE7V5taxzi7rjSnInwvTMBMVdBZtbHl0Ob9 +u+bYPGzjDiu2drAcM1NgjgtPA5s/QBStZXbvDHBXNgWiKyUuv6VaVYHBMDRygsvI3B4 m8UkrwzWtAvBIf5b7+Wttkg7u7TIWBV/H4N0sgJpWJ69ROKnYuwjmS4A6pz26U+v2tvj INHA== X-Gm-Message-State: AO0yUKU5BBWLIOpKviO+theErDABig8UnP1Qns/3xQxPxPkW+bkbz4eG CJ3tit6toAQJMh6zmhGg/brGIzIUfiKfz7hGS5/LfrcJGSXz X-Google-Smtp-Source: AK7set+RDCmQu7vyyueNAp2uziZXT5n6La9Hx5rltbF9uY3E6YW4Ax8bXn5BpYe4GzAoOntIdCxbbbpoWNsfviOgzxqB3qa6V47/ MIME-Version: 1.0 X-Received: by 2002:a05:6e02:14c3:b0:310:ce0a:d866 with SMTP id o3-20020a056e0214c300b00310ce0ad866mr2462405ilk.23.1675780277262; Tue, 07 Feb 2023 06:31:17 -0800 (PST) Date: Tue, 07 Feb 2023 06:31:17 -0800 In-Reply-To: <3151379.1675779370@warthog.procyon.org.uk> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000025e37805f41d0049@google.com> Subject: Re: [syzbot] kernel BUG in __tlb_remove_page_size (2) From: syzbot To: akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com, dhowells@redhat.com, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, npiggin@gmail.com, peterz@infradead.org, syzkaller-bugs@googlegroups.com, will@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: INFO: rcu detected stall in corrupted rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P5549 } 2638 jiffies s: 2817 root: 0x0/T rcu: blocking rcu_node structures (internal RCU debug): Tested on: commit: fab9eebf iov_iter: Kill ITER_PIPE git tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/ iov-fixes console output: https://syzkaller.appspot.com/x/log.txt?x=14e2c6f3480000 kernel config: https://syzkaller.appspot.com/x/.config?x=facc234423e66dc6 dashboard link: https://syzkaller.appspot.com/bug?extid=d87dd8e018fd2cc2528b compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Note: no patches were applied.