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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 DD542C43331 for ; Tue, 24 Mar 2020 13:31:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA91A206F6 for ; Tue, 24 Mar 2020 13:31:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728992AbgCXNVD (ORCPT ); Tue, 24 Mar 2020 09:21:03 -0400 Received: from mx2.suse.de ([195.135.220.15]:44086 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728769AbgCXNVB (ORCPT ); Tue, 24 Mar 2020 09:21:01 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 93DE4AC0C; Tue, 24 Mar 2020 13:21:00 +0000 (UTC) Message-ID: <1585056047.7151.21.camel@suse.de> Subject: Re: lockdep warning in urb.c:363 usb_submit_urb From: Oliver Neukum To: Qais Yousef Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Date: Tue, 24 Mar 2020 14:20:47 +0100 In-Reply-To: <20200324104610.pqdtaocg6qctlnqv@e107158-lin> References: <20200323143857.db5zphxhq4hz3hmd@e107158-lin.cambridge.arm.com> <1584977769.27949.18.camel@suse.de> <20200323172932.5s7txy2juhut5qdv@e107158-lin.cambridge.arm.com> <1585040918.7151.6.camel@suse.de> <20200324104610.pqdtaocg6qctlnqv@e107158-lin> Content-Type: multipart/mixed; boundary="=-U07L1RnJRmO2Nvpmq+Bb" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org --=-U07L1RnJRmO2Nvpmq+Bb Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Am Dienstag, den 24.03.2020, 10:46 +0000 schrieb Qais Yousef: > > I should have stuck to what I know then. I misread the documentation. Hopefully > the attached looks better. I don't see the new debug you added emitted. That is odd. Please try echo "module usbcore +mfp" > /sys/kernel/debug/dynamic_debug/control with the attached improved patch. Regards Oliver --=-U07L1RnJRmO2Nvpmq+Bb Content-Disposition: attachment; filename="0001-usb-hub-additional-debugging.patch" Content-Transfer-Encoding: base64 Content-Type: text/x-patch; name="0001-usb-hub-additional-debugging.patch"; charset="UTF-8" RnJvbSA4OWI0MjBmNGI2ZmQ0MWU4OTAxMjY3ZWU2OThhYzllNWQ0OThmOGRiIE1vbiBTZXAgMTcg MDA6MDA6MDAgMjAwMQpGcm9tOiBPbGl2ZXIgTmV1a3VtIDxvbmV1a3VtQHN1c2UuY29tPgpEYXRl OiBNb24sIDIzIE1hciAyMDIwIDE2OjM0OjM1ICswMTAwClN1YmplY3Q6IFtQQVRDSCAxLzJdIHVz YjogaHViIGFkZGl0aW9uYWwgZGVidWdnaW5nCgotLS0KIGRyaXZlcnMvdXNiL2NvcmUvaHViLmMg fCAxICsKIDEgZmlsZSBjaGFuZ2VkLCAxIGluc2VydGlvbigrKQoKZGlmZiAtLWdpdCBhL2RyaXZl cnMvdXNiL2NvcmUvaHViLmMgYi9kcml2ZXJzL3VzYi9jb3JlL2h1Yi5jCmluZGV4IDU0Y2Q4ZWY3 OTVlYy4uMTJjZTJmZGM0YzJhIDEwMDY0NAotLS0gYS9kcml2ZXJzL3VzYi9jb3JlL2h1Yi5jCisr KyBiL2RyaXZlcnMvdXNiL2NvcmUvaHViLmMKQEAgLTE2MjksNiArMTYyOSw3IEBAIHN0YXRpYyBp bnQgaHViX2NvbmZpZ3VyZShzdHJ1Y3QgdXNiX2h1YiAqaHViLAogCQlyZXQgPSAtRU5PTUVNOwog CQlnb3RvIGZhaWw7CiAJfQorCWRldl9kYmcoaHViX2RldiwgIiVwIFVSQiBhbGxvY2F0ZWQgXG4i LCBodWItPnVyYik7CiAKIAl1c2JfZmlsbF9pbnRfdXJiKGh1Yi0+dXJiLCBoZGV2LCBwaXBlLCAq aHViLT5idWZmZXIsIG1heHAsIGh1Yl9pcnEsCiAJCWh1YiwgZW5kcG9pbnQtPmJJbnRlcnZhbCk7 Ci0tIAoyLjE2LjQKCg== --=-U07L1RnJRmO2Nvpmq+Bb--