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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_2 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 59102C432C0 for ; Wed, 20 Nov 2019 10:55:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3B76D22445 for ; Wed, 20 Nov 2019 10:55:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728929AbfKTKz4 (ORCPT ); Wed, 20 Nov 2019 05:55:56 -0500 Received: from mx2.suse.de ([195.135.220.15]:34622 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727230AbfKTKz4 (ORCPT ); Wed, 20 Nov 2019 05:55:56 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id E8F146A54D; Wed, 20 Nov 2019 10:55:53 +0000 (UTC) Message-ID: <1574247349.14298.30.camel@suse.com> Subject: Re: INFO: task hung in chaoskey_disconnect From: Oliver Neukum To: Stephen Boyd , alexandre.belloni@bootlin.com, andreyknvl@google.com, arnd@arndb.de, b.zolnierkie@samsung.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, lvivier@redhat.com, mchehab+samsung@kernel.org, mpm@selenic.com, syzbot , syzkaller-bugs@googlegroups.com Date: Wed, 20 Nov 2019 11:55:49 +0100 In-Reply-To: <5dcee59a.1c69fb81.188d.e4b9@mx.google.com> References: <000000000000cdaa560596acbc4e@google.com> <5dcee59a.1c69fb81.188d.e4b9@mx.google.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Am Freitag, den 15.11.2019, 09:51 -0800 schrieb Stephen Boyd: > Quoting syzbot (2019-11-06 04:32:09) > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: b1aa9d83 usb: raw: add raw-gadget interface > > git tree: https://github.com/google/kasan.git usb-fuzzer > > console output: https://syzkaller.appspot.com/x/log.txt?x=16ae2adce00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=79de80330003b5f7 > > dashboard link: https://syzkaller.appspot.com/bug?extid=f41c4f7c6d8b0b778780 > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10248158e00000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16afbf7ce00000 > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+f41c4f7c6d8b0b778780@syzkaller.appspotmail.com > > I suspect this is because of the kthread getting stuck problem reported > by Maciej. Maybe try the commit that Herbert picked up. Do you have a commit ID so we can test an exported patch? Regards Oliver