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=-4.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 512F9C433E1 for ; Wed, 15 Jul 2020 11:16:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E69B620658 for ; Wed, 15 Jul 2020 11:16:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=canb.auug.org.au header.i=@canb.auug.org.au header.b="GkaBGqWr" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728516AbgGOLQD (ORCPT ); Wed, 15 Jul 2020 07:16:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725912AbgGOLQD (ORCPT ); Wed, 15 Jul 2020 07:16:03 -0400 Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15E66C061755; Wed, 15 Jul 2020 04:16:03 -0700 (PDT) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4B6FDs4szfz9sRf; Wed, 15 Jul 2020 21:15:57 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=canb.auug.org.au; s=201702; t=1594811759; bh=3WOh8dyM4Vi1i0NxC/9yQndiresf1N+xQQw5HKnVsqw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=GkaBGqWroEWltm8HhGQzyaVmSkDXgfMKwzCEeTOkAItaY8Y39meiPHPS4mMnGsgIj 6Lo4BFiF+GZDIwxdWsIOQVqY+WGmnFoO3XLeFEMNoD7yyssBTW1PmE6RfYukR7Jliy BkL42vqKecgwC60UQCQ6d6yLfUHihrxQouON6bHCkfx41epvvs2mdnln1GvlXhjWgZ MWqhyt4kro4RBdLWOxUZHmWSyXYz59z9A/T9fgewg6qmeP5Gobab0jLXeAbNHvuL0C Z1hUi9E1T6JGN5SRYLi1YdvCIZdH/n+5bZA0S+zl50wFudi0K+2cK0Da8N2uvUj52s JRK810a0dRk4g== Date: Wed, 15 Jul 2020 21:15:56 +1000 From: Stephen Rothwell To: syzbot Cc: akpm@linux-foundation.org, axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, pmladek@suse.com, qiang.zhang@windriver.com, syzkaller-bugs@googlegroups.com Subject: Re: WARNING in kthread_queue_work Message-ID: <20200715211556.61705064@canb.auug.org.au> In-Reply-To: <00000000000031a14405aa780bdb@google.com> References: <000000000000e6807f05aa4608b7@google.com> <00000000000031a14405aa780bdb@google.com> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/ahPpGGhSCtt9pBV9/XE.=pa"; protocol="application/pgp-signature"; micalg=pgp-sha256 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --Sig_/ahPpGGhSCtt9pBV9/XE.=pa Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Hi syzbot, On Wed, 15 Jul 2020 03:04:04 -0700 syzbot wrote: > > syzbot has bisected this issue to: >=20 > commit 4977caef05aa154f5e45a232fc4f0e1c74a0c739 > Author: Zhang Qiang > Date: Tue Jul 7 02:29:47 2020 +0000 >=20 > kthread: work could not be queued when worker being destroyed >=20 > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D12c58f5710= 0000 > start commit: 89032636 Add linux-next specific files for 20200708 > git tree: linux-next > final oops: https://syzkaller.appspot.com/x/report.txt?x=3D11c58f5710= 0000 > console output: https://syzkaller.appspot.com/x/log.txt?x=3D16c58f57100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3D64a250ebabc6c= 320 > dashboard link: https://syzkaller.appspot.com/bug?extid=3Dfa64e680a1ff320= 87778 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D16bf9f2f100= 000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D118380ed100000 >=20 > Reported-by: syzbot+fa64e680a1ff32087778@syzkaller.appspotmail.com > Fixes: 4977caef05aa ("kthread: work could not be queued when worker being= destroyed") >=20 > For information about bisection process see: https://goo.gl/tpsmEJ#bisect= ion #syz invalid This patch was removed. --=20 Cheers, Stephen Rothwell --Sig_/ahPpGGhSCtt9pBV9/XE.=pa Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEENIC96giZ81tWdLgKAVBC80lX0GwFAl8O5WwACgkQAVBC80lX 0Gw+DQf/fLLZPQPNoACTbZnOrP7NSSsjaXnens7+3QkbZlSCAiUCedarlTPop4Wm YHGepi0ykJtd1pFFHJg7+0fzSjqdHlr6JES5zMaWoTo9xjqj4Z2ko4e6ulCV51NA 7FOSUJ7KN7pbCuABwSx5sliQgD7tZaY7ZNYQJqiV9p1Eg4XD9tgqR9wjm/hH764b U1nJzaUwrhPZBFuKqyMuWDqiYarBVM+P6DrC8yNnIEt6LH89yeWYm9ew/zsjHKHz WKXtH7mFX904r5m92spjsHVJtQkJZpq7imBPLgKjy2nY4lKmQJtaqn+HsXkLJqGt SMRpnu8zcLsUNDXpOlj4HI/rcQYjMg== =Rc9o -----END PGP SIGNATURE----- --Sig_/ahPpGGhSCtt9pBV9/XE.=pa--