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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 A0755C432C2 for ; Wed, 25 Sep 2019 18:32:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D56921655 for ; Wed, 25 Sep 2019 18:32:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2501964AbfIYScA (ORCPT ); Wed, 25 Sep 2019 14:32:00 -0400 Received: from netrider.rowland.org ([192.131.102.5]:42083 "HELO netrider.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S2439896AbfIYSb7 (ORCPT ); Wed, 25 Sep 2019 14:31:59 -0400 Received: (qmail 5400 invoked by uid 500); 25 Sep 2019 14:31:58 -0400 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 25 Sep 2019 14:31:58 -0400 Date: Wed, 25 Sep 2019 14:31:58 -0400 (EDT) From: Alan Stern X-X-Sender: stern@netrider.rowland.org To: Piergiorgio Sartor cc: Christoph Hellwig , Jens Axboe , USB list , , Kernel development list Subject: Re: reeze while write on external usb 3.0 hard disk [Bug 204095] In-Reply-To: <20190925170741.GA5235@lazy.lzy> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, 25 Sep 2019, Piergiorgio Sartor wrote: > 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. One thing you can try is git bisect from 5.1.20 (or maybe just 5.1.0) to 5.2.8. If you can identify a particular commit which caused the problem to start, that would help. Alan Stern