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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 20342C4CECE for ; Mon, 14 Oct 2019 10:57:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0205B207FF for ; Mon, 14 Oct 2019 10:57:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731449AbfJNK5D (ORCPT ); Mon, 14 Oct 2019 06:57:03 -0400 Received: from mx2.suse.de ([195.135.220.15]:43684 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731400AbfJNK5D (ORCPT ); Mon, 14 Oct 2019 06:57:03 -0400 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 AA960BAE0; Mon, 14 Oct 2019 10:57:01 +0000 (UTC) Message-ID: <1571050609.19529.11.camel@suse.com> Subject: Re: Lockup on USB and block devices From: Oliver Neukum To: Steven Rostedt , linux-block@vger.kernel.org, LKML , linux-usb@vger.kernel.org Cc: Jens Axboe , Greg Kroah-Hartman Date: Mon, 14 Oct 2019 12:56:49 +0200 In-Reply-To: <20191001134430.1f9c9c75@gandalf.local.home> References: <20191001134430.1f9c9c75@gandalf.local.home> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Am Dienstag, den 01.10.2019, 13:44 -0400 schrieb Steven Rostedt: > Not sure who to blame, but my server locked up when upgraded (accessing > volume group information), and echoing in "w" into sysrq-trigger showed > a bit of information. > > First, looking at my dmesg I see that my usb-storage is hung up, for > whatever reason. Thus, this could be the source of all issues. The reset of the device is hung. You may be hanging on dev_mutex. Is this repeatable? Regards Oliver