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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B890C4332F for ; Wed, 4 May 2022 08:15:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346114AbiEDITX (ORCPT ); Wed, 4 May 2022 04:19:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346106AbiEDITV (ORCPT ); Wed, 4 May 2022 04:19:21 -0400 Received: from bmailout3.hostsharing.net (bmailout3.hostsharing.net [176.9.242.62]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 83A9C1FCD6; Wed, 4 May 2022 01:15:45 -0700 (PDT) Received: from h08.hostsharing.net (h08.hostsharing.net [83.223.95.28]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "*.hostsharing.net", Issuer "RapidSSL TLS DV RSA Mixed SHA256 2020 CA-1" (verified OK)) by bmailout3.hostsharing.net (Postfix) with ESMTPS id 94FA0101951B0; Wed, 4 May 2022 10:15:43 +0200 (CEST) Received: by h08.hostsharing.net (Postfix, from userid 100393) id 67F464D2E9; Wed, 4 May 2022 10:15:43 +0200 (CEST) Date: Wed, 4 May 2022 10:15:43 +0200 From: Lukas Wunner To: Ferry Toth Cc: Steve Glendinning , UNGLinuxDriver@microchip.com, Oliver Neukum , "David S. Miller" , Jakub Kicinski , Paolo Abeni , netdev@vger.kernel.org, linux-usb@vger.kernel.org, Andre Edich , Oleksij Rempel , Martyn Welch , Gabriel Hojda , Christoph Fritz , Lino Sanfilippo , Philipp Rosenberger , Heiner Kallweit , Andrew Lunn , Russell King Subject: Re: [PATCH net-next 0/7] Polling be gone on LAN95xx Message-ID: <20220504081543.GA21083@wunner.de> References: <20220503082612.GA21515@wunner.de> <2a436486-a54d-a9b3-d839-232a38653af3@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2a436486-a54d-a9b3-d839-232a38653af3@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, May 03, 2022 at 04:26:58PM +0200, Ferry Toth wrote: > On 03-05-2022 10:26, Lukas Wunner wrote: > > On Mon, May 02, 2022 at 10:33:06PM +0200, Ferry Toth wrote: > > > I have "DMA-API: debugging enabled by kernel config" > > > and this (I guess) shows me before and after the patches: > > > > > > ------------[ cut here ]------------ > > > DMA-API: xhci-hcd xhci-hcd.1.auto: cacheline tracking EEXIST, overlapping > > > mappings aren't supported > > > > That is under investigation here: > > https://bugzilla.kernel.org/show_bug.cgi?id=215740 > > > > It's apparently a long-standing bug in the USB core which was exposed > > by a new WARN() check introduced in 5.14. > > I'm not sure this is correct. The issue happens for me only when connecting > the SMSC9414. > > Other usb devices I have (memory sticks, wifi, bluetooth) do not trigger > this. Hm, I've taken the liberty to add that information to the bugzilla. Thanks, Lukas