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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 C9AF6C5B578 for ; Wed, 3 Jul 2019 03:55:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 954982085A for ; Wed, 3 Jul 2019 03:55:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562126154; bh=CxUEK7U00Mpfhb84z/h3PGb5BzXqjCJA1mrtOyZ3IoI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=t/UA95GE2WbEbBZhZ+ILqXA30YVK/DV95gLcU2UmaH2wvgRMIN6D2L8sUUYYgstJI EnksIIAFa3ftD0g5NYcLYuaq06uFjFUwOdp3co5O+SMSgMkWHUuzhyjcR/Znevjzi6 mRUmlaNE1Xzv/sYOlMelN/kIx72WlcgCFXRzIn2c= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727205AbfGCDzx (ORCPT ); Tue, 2 Jul 2019 23:55:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:43290 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727025AbfGCDzx (ORCPT ); Tue, 2 Jul 2019 23:55:53 -0400 Received: from sol.localdomain (c-24-5-143-220.hsd1.ca.comcast.net [24.5.143.220]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9957220673; Wed, 3 Jul 2019 03:55:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562126152; bh=CxUEK7U00Mpfhb84z/h3PGb5BzXqjCJA1mrtOyZ3IoI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=BgUuNjweTsk7nr4lxrratRW6XoZEquf8p3dzbrg6fJ6XcVz0qod5YX+hWM71d8yPy SJsd3FL/aCPEedsOTRo+eO4HpJyUbynmFxST9H0sN6WLsVh58seKgq9yzrSLE/aE+4 ZG2avSvKWrsRqz2riDbtxM+yHbsvOQ1/bX8a25jc= Date: Tue, 2 Jul 2019 20:55:50 -0700 From: Eric Biggers To: Ravi Bangoria Cc: linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Song Liu , Kan Liang , Alexander Shishkin , Jiri Olsa , Namhyung Kim , syzkaller-bugs@googlegroups.com, Oleg Nesterov Subject: Re: Reminder: 22 open syzbot bugs in perf subsystem Message-ID: <20190703035550.GA633@sol.localdomain> References: <20190702054342.GB27702@sol.localdomain> <5a99f556-7449-55da-d901-0249352a5e15@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5a99f556-7449-55da-d901-0249352a5e15@linux.ibm.com> User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 03, 2019 at 09:09:55AM +0530, Ravi Bangoria wrote: > > > On 7/2/19 11:13 AM, Eric Biggers wrote: > > -------------------------------------------------------------------------------- > > Title: possible deadlock in uprobe_clear_state > > Last occurred: 164 days ago > > Reported: 201 days ago > > Branches: Mainline > > Dashboard link: https://syzkaller.appspot.com/bug?id=a1ce9b3da349209c5085bb8c4fee753d68c3697f > > Original thread: https://lkml.kernel.org/lkml/00000000000010a9fb057cd14174@google.com/T/#u > > > > Unfortunately, this bug does not have a reproducer. > > > > No one replied to the original thread for this bug. > > > > If you fix this bug, please add the following tag to the commit: > > Reported-by: syzbot+1068f09c44d151250c33@syzkaller.appspotmail.com > > > > If you send any email or patch for this bug, please consider replying to the > > original thread. For the git send-email command to use, or tips on how to reply > > if the thread isn't in your mailbox, see the "Reply instructions" at > > https://lkml.kernel.org/r/00000000000010a9fb057cd14174@google.com > > > > This is false positive: > https://marc.info/?l=linux-kernel&m=154925313012615&w=2 > What do you mean "false positive"? Your patch says there can be a deadlock. Also, your patch hasn't been merged yet. So doesn't it still need to be fixed? - Eric