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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 62751C4360D for ; Wed, 25 Sep 2019 17:08:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 41E07217F4 for ; Wed, 25 Sep 2019 17:08:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2408223AbfIYRIH (ORCPT ); Wed, 25 Sep 2019 13:08:07 -0400 Received: from mx009.vodafonemail.xion.oxcs.net ([153.92.174.39]:60396 "EHLO mx009.vodafonemail.xion.oxcs.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407544AbfIYRIH (ORCPT ); Wed, 25 Sep 2019 13:08:07 -0400 Received: from vsmx002.vodafonemail.xion.oxcs.net (unknown [192.168.75.192]) by mta-6-out.mta.xion.oxcs.net (Postfix) with ESMTP id 5D2D2605B16; Wed, 25 Sep 2019 17:08:04 +0000 (UTC) Received: from lazy.lzy (unknown [87.157.113.162]) by mta-6-out.mta.xion.oxcs.net (Postfix) with ESMTPA id B4A926066CF; Wed, 25 Sep 2019 17:07:47 +0000 (UTC) Received: from lazy.lzy (localhost [127.0.0.1]) by lazy.lzy (8.15.2/8.14.5) with ESMTPS id x8PH7gAS005723 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Wed, 25 Sep 2019 19:07:42 +0200 Received: (from red@localhost) by lazy.lzy (8.15.2/8.15.2/Submit) id x8PH7fiP005722; Wed, 25 Sep 2019 19:07:41 +0200 Date: Wed, 25 Sep 2019 19:07:41 +0200 From: Piergiorgio Sartor To: Piergiorgio Sartor Cc: Christoph Hellwig , Alan Stern , Jens Axboe , USB list , linux-block@vger.kernel.org, Kernel development list Subject: Re: reeze while write on external usb 3.0 hard disk [Bug 204095] Message-ID: <20190925170741.GA5235@lazy.lzy> References: <20190817095422.GA4200@lazy.lzy> <20190820072326.GD28968@lst.de> <20190820163722.GA2991@lazy.lzy> <20190826173833.GA4166@lazy.lzy> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190826173833.GA4166@lazy.lzy> User-Agent: Mutt/1.12.1 (2019-06-15) X-VADE-STATUS: LEGIT Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 26, 2019 at 07:38:33PM +0200, Piergiorgio Sartor wrote: > On Tue, Aug 20, 2019 at 06:37:22PM +0200, Piergiorgio Sartor wrote: > > On Tue, Aug 20, 2019 at 09:23:26AM +0200, Christoph Hellwig wrote: > > > On Mon, Aug 19, 2019 at 10:14:25AM -0400, Alan Stern wrote: > > > > Let's bring this to the attention of some more people. > > > > > > > > It looks like the bug that was supposed to be fixed by commit > > > > d74ffae8b8dd ("usb-storage: Add a limitation for > > > > blk_queue_max_hw_sectors()"), which is part of 5.2.5, but apparently > > > > the bug still occurs. > > > > > > Piergiorgio, > > > > > > can you dump the content of max_hw_sectors_kb file for your USB storage > > > device and send that to this thread? > > > > Hi all, > > > > for both kernels, 5.1.20 (working) and 5.2.8 (not working), > > the content of /sys/dev/x:y/queue/max_hw_sectors_kb is 512 > > for USB storage devices (2.0 and 3.0). > > > > This is for the PC showing the issue. > > > > In an other PC, which does not show the issus at the moment, > > the values are 120, for USB2.0, and 256, for USB3.0. > > Hi again, > > any news on this? > > Is there anything I can do to help? > > Should I report this somewhere else too? > > Currently this is quite a huge problem for me, > since the only working external storage is an > old 1394 HDD... Hi all, I'm now on kernel 5.2.16, from Fedora, and still I see the same issue. I guess it is not a chipset quirk, since there are two involved here. For the USB 2.0 I've (with "lspci"): USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI]) For USB 3.0 I've: USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller (prog-if 30 [XHCI]) Any idea on how to proceed? Thanks a lot. bye, -- piergiorgio