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=-13.7 required=3.0 tests=BAYES_00,FROM_LOCAL_DIGITS, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS 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 9075FC433DB for ; Sat, 9 Jan 2021 17:02:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 54DD323A79 for ; Sat, 9 Jan 2021 17:02:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725966AbhAIRBs (ORCPT ); Sat, 9 Jan 2021 12:01:48 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:40921 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726011AbhAIRBp (ORCPT ); Sat, 9 Jan 2021 12:01:45 -0500 Received: by mail-il1-f197.google.com with SMTP id g1so13318414ilq.7 for ; Sat, 09 Jan 2021 09:01:30 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=TKUoXu927qEWQVV5Epbyzc7Ss7cy0HmJolu4+tIMmUI=; b=BzwEfjJz28zvCNVzkdmgIUVycWt/Wsy8cMjNvfe77mGLKU3V+9w/oEJr+0P3ggSMoX pbJlFGIWKPjVM9qBxP+AtbOArD3C+ZBCqK5NooA21Da+v5IqkkanS5S7smWF7deGc5To DhkKH1nqxJDcgn85ZoD/UlqSR/T7t/U7h9I4TYk4wA5GLXKb2+3Aunnw/S4S8GrlsDzE NHaOfRgxUq0/vYvdb2AzXm1mJQms9+7goSD9qZe4kmuuLUX+4rOJBfrzW6GCeiUDBLac mVLSC6kC6TK+mZs/0JeGnoF5FdD/WRv8ssa2pl+nxt2Y32wjOyDSgUW1aKuDqpDs1oFq PGLw== X-Gm-Message-State: AOAM530rP+ai7jAzJhTMo6n/xp0HUCtt+pvsvDI99PHs6NyyM5/Aqbe/ t4p0B08ZXr44PX+RM5eocYnFlPg6pO61NgOS7E6/BIks4/Tr X-Google-Smtp-Source: ABdhPJwpCDQCauEE8T5RinO+sglwtX2Wf03+cIUORnl4QvxsgoLfN20TgVTsEVpOZ5X7+qwp6ZSWudIC7bxQVULggumWU5sdTQq8 MIME-Version: 1.0 X-Received: by 2002:a02:63cd:: with SMTP id j196mr8221257jac.61.1610211664742; Sat, 09 Jan 2021 09:01:04 -0800 (PST) Date: Sat, 09 Jan 2021 09:01:04 -0800 In-Reply-To: <06c3d80d-eb09-5cda-e0bf-862400d02433@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004a4ef105b87a9e10@google.com> Subject: Re: BUG: unable to handle kernel paging request in percpu_ref_exit From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@kernel.org, mingo@redhat.com, peterz@infradead.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, will@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+99ed55100402022a6276@syzkaller.appspotmail.com Tested on: commit: d9d05217 io_uring: stop SQPOLL submit on creator's death git tree: git://git.kernel.dk/linux-block kernel config: https://syzkaller.appspot.com/x/.config?x=2455d075a1c4afa8 dashboard link: https://syzkaller.appspot.com/bug?extid=99ed55100402022a6276 compiler: gcc (GCC) 10.1.0-syz 20200507 Note: testing is done by a robot and is best-effort only.