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=-5.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,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 74580C432C0 for ; Wed, 20 Nov 2019 20:17:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4CC8B20872 for ; Wed, 20 Nov 2019 20:17:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="EQ65JBR8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726722AbfKTURV (ORCPT ); Wed, 20 Nov 2019 15:17:21 -0500 Received: from mail-pl1-f194.google.com ([209.85.214.194]:42334 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726346AbfKTURV (ORCPT ); Wed, 20 Nov 2019 15:17:21 -0500 Received: by mail-pl1-f194.google.com with SMTP id j12so295461plt.9 for ; Wed, 20 Nov 2019 12:17:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=message-id:mime-version:content-transfer-encoding:in-reply-to :references:subject:from:to:user-agent:date; bh=pEcboEGWgRcR/lCzkZsNrTAeSBzrBEcSRW5Q19SXbMI=; b=EQ65JBR8bkeY9w4g/Uc09Y4QqY5RWsrMSpC5TXkqOYfEwzwY+zBJfbxvIxys0nqjFy 02qA8zcrbdxss7Z6s0fO8IYZ5yywKee2UPfYlgGwEbt1owwZNYuTR8739myDYq87p60K ThgCbPjw2lXpTi7Q3s24f+XS315ywP8gZaqHM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:mime-version :content-transfer-encoding:in-reply-to:references:subject:from:to :user-agent:date; bh=pEcboEGWgRcR/lCzkZsNrTAeSBzrBEcSRW5Q19SXbMI=; b=tCg2Qc6DhSy+eDbNgtW5X4BMR984NjOKknVq9mQ77BWJ6Gv3KwXhssHIBSs8Vk69wD kC7YUb7pcSirsVcucnnA6mAKrKqGkb4xDf1jPmvNb47vsLfNnvmhiKW43PM28baQcRDw cx0mfX5SJdW2R7a7QiLnI6PtjUaN59b1GQWWrZJJaxWkvG75YQq7O1ZRa3nHdVm+9oN1 AehqcdASspSwWT8vLdJBDd24Rfybewrcs5/Z+xi9oUlA7fE0Tae38nlNEi2KfmEXa2yJ YPzTM7LSWZ5RXzikP2ETe1ZVoTuctOuNc+sXGhXRemCEtwuHFKxBXjP6v4bgbsu+EkLF H9mw== X-Gm-Message-State: APjAAAU4plqpkwumA6XTGC7bSHWE/Mcxu4BkYPZBHh7embRD67+sG/Qz cJvPSf2/z6ryW5vszwnD9v+Ang== X-Google-Smtp-Source: APXvYqzpSqQYefyJ3ZiEe7Zp8CiqqyaHPThJUtrwF7mFi9vdQx6QxD53EHr8zOke3ntXqED5vcNQhw== X-Received: by 2002:a17:902:b481:: with SMTP id y1mr4627808plr.76.1574281040440; Wed, 20 Nov 2019 12:17:20 -0800 (PST) Received: from chromium.org ([2620:15c:202:1:fa53:7765:582b:82b9]) by smtp.gmail.com with ESMTPSA id s15sm89632pgc.3.2019.11.20.12.17.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Nov 2019 12:17:19 -0800 (PST) Message-ID: <5dd59f4f.1c69fb81.17c48.0540@mx.google.com> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <1574247349.14298.30.camel@suse.com> References: <000000000000cdaa560596acbc4e@google.com> <5dcee59a.1c69fb81.188d.e4b9@mx.google.com> <1574247349.14298.30.camel@suse.com> Subject: Re: INFO: task hung in chaoskey_disconnect From: Stephen Boyd To: Oliver Neukum , 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 User-Agent: alot/0.8.1 Date: Wed, 20 Nov 2019 12:17:18 -0800 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Quoting Oliver Neukum (2019-11-20 02:55:49) > Am Freitag, den 15.11.2019, 09:51 -0800 schrieb Stephen Boyd: > > Quoting syzbot (2019-11-06 04:32:09) > > > Hello, > > >=20 > > > syzbot found the following crash on: > > >=20 > > > 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=3D16ae2adce= 00000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=3D79de80330= 003b5f7 > > > dashboard link: https://syzkaller.appspot.com/bug?extid=3Df41c4f7c6d8= b0b778780 > > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D1024815= 8e00000 > > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D16afbf7ce= 00000 > > >=20 > > > IMPORTANT: if you fix the bug, please add the following tag to the co= mmit: > > > Reported-by: syzbot+f41c4f7c6d8b0b778780@syzkaller.appspotmail.com > >=20 > > I suspect this is because of the kthread getting stuck problem reported > > by Maciej. Maybe try the commit that Herbert picked up. >=20 > Do you have a commit ID so we can test an exported patch? >=20 I sent the patch in. See https://lkml.kernel.org/r/00000000000019acd8059770= 942b@google.com for what happened. It didn't make a difference. I'll have to stare at it a little more to figure out what's going on.