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=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 C7FF6C433E0 for ; Sat, 9 Jan 2021 17:01:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7E4472343F for ; Sat, 9 Jan 2021 17:01:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726541AbhAIRBq (ORCPT ); Sat, 9 Jan 2021 12:01:46 -0500 Received: from mail-il1-f200.google.com ([209.85.166.200]:36810 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725966AbhAIRBp (ORCPT ); Sat, 9 Jan 2021 12:01:45 -0500 Received: by mail-il1-f200.google.com with SMTP id z15so13298771ilb.3 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=SHX68mmRWjoQfFpCy2/XkB8y8RIA6DiYAVByWY7iwMgR9n9D9WL1MdsBUz636nPh5Z vyj5SebxANFaH4DjsMxljKyZ+2agUG7kvYtaNDZdf/vnRt4yZri/E/6Mk1fcTZ+0ZPtE we+LH+T+sZVD401JTZPjniohCLC5GB/IpKV1kPPpnfgG6dZDHzK3xQHl6jXYqwNBOByq HuNiqU0K0fhklU7ZzfKiGgupL/bbWYmz0Bwi1ck0bZrt1CyzF2QBi0R33I7GF8cCk5jC GLad8lsU+gPECm1KsGKJHl02oR8nwCFaxs7NpImX11jxn05Pw2D4oBSJQUUUUPOLgcV6 ccIQ== X-Gm-Message-State: AOAM5322wfIcOLk9Km9GBImpfEMHACtE2LQ3SLednqosezI9UWG285uJ m6x60eH2oum0bdEclxgXUoCbxGsXzoepbhPBNmn11noP14bA 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: linux-kernel@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.