From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 444C5318BA7 for ; Thu, 2 Jul 2026 16:34:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783010096; cv=none; b=Q43Ci9YcTtje7/GT+8hs//3jNX0KQ+JvfJtggUwHQR0V7nwIx17WrWmnYRz+/mVLmO/AG9K42bNnyef91BpXwvc7c/wcRfBNjuOyZEyy72d96RAXzKpHSsoTg0kUny0z8Patlmh+yGCrM83nT6g80I/wNSWRauo+57Zo5tX+/PU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783010096; c=relaxed/simple; bh=Vo9F9EIvLh+3M3TnCX3YLKisUPFs6vlEtUHrCqhT3qM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OmvO8Itp1wGm9rBQ44GEJUaBLXRCMW14MoN5KpAfl5KvG4giODjADUba6Ifopi4wSut3PrBloKyMP7ehyxW7DU41lB4bwuFlHETlV5lMU2MOaeETtLycR9qgs/UjqaKwyX+dQ7svO9oEYfc2+Jiv/Vbg9oWbsrr/XNflzMvRNCQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=VJZHi0Jk; arc=none smtp.client-ip=80.241.56.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="VJZHi0Jk" Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:b231:465::202]) (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) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4grjCX1R1tz9v0J; Thu, 2 Jul 2026 18:34:48 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1783010088; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tDsKjaHsLWNkHCpBGU2Yp8fOx9IGtHQiRXgsn+7Dk/4=; b=VJZHi0JkkfVFRoB1+AIgOWArqxZVEbOLm5uW7B9uiTxmv1IYzIvUpwfm/0FVj5riOL6Q/J yn0N9FAclJuXbDmP1S0kyBnKM8F7TSl8QRm4DMQUEVSAVR891UwxR8jBo0a+RgbBGEYR2g rGmO4WBUY8KGflg5IbXoSYn6Z/31Ac+pDLCzPBmVNtXwmU2c5knrDTyUbQBwDWT66+9S8m gYC56HttrFWBtC9b/7Y1Z5Hs9hSJOawDXXLywShiAvtA6dhn/G3PqycFb4oYvUUSVYzFTB 4lEXFGT4q8QmEB2119ELFH2y3IPP/uc45lUKItyDJX2B1j7EzLe8ggtW7UW1WA== Message-ID: <5885fa3b-4893-474f-9de7-c3693ce89504@mailbox.org> Date: Thu, 2 Jul 2026 18:34:46 +0200 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: 7.1 regression bisected to "usb: core: Fix SuperSpeed root hub wMaxPacketSize" To: Greg Kroah-Hartman Cc: Michal Pecio , Mathias Nyman , linux-usb@vger.kernel.org References: <577c7ba6-c638-4e73-acac-fbf6c4fb4ccc@linux.intel.com> <20260702105152.415afeaa.michal.pecio@gmail.com> <80bdd3da-33c0-44b4-a1af-6aca44c1acd6@mailbox.org> <2026070255-rerun-unstable-a90a@gregkh> <2026070243-retread-sensuous-aab2@gregkh> From: =?UTF-8?Q?Michel_D=C3=A4nzer?= Content-Language: de-CH-frami, en-CA In-Reply-To: <2026070243-retread-sensuous-aab2@gregkh> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-MBO-RS-ID: 757ee101be8c3312b78 X-MBO-RS-META: ydruw6hpxwq9gwfiu6gsh9azaai5tfk6 On 7/2/26 14:38, Greg Kroah-Hartman wrote: > On Thu, Jul 02, 2026 at 02:25:04PM +0200, Michel Dänzer wrote: >> On 7/2/26 14:22, Greg Kroah-Hartman wrote: >>> On Thu, Jul 02, 2026 at 02:20:05PM +0200, Michel Dänzer wrote: >>>> On 7/2/26 10:51, Michal Pecio wrote: >>>>> On Thu, 2 Jul 2026 00:09:42 +0300, Mathias Nyman wrote: >>>>>> On 7/1/26 19:02, Michel Dänzer wrote: >>>>>>> >>>>>>> The ethernet port of a Lenovo ThinkPad USB-C Dock Gen2 connected to >>>>>>> a ThinkPad P14s Gen 5 AMD stopped working in 7.1. >>>>>>> >>>>>>> ip addr show enx482ae347e7c3 >>>>>>> >>>>>>> says the interface doesn't exist. The only thing about it in dmesg >>>>>>> is: >>>>>>> >>>>>>> r8152 8-1.1:1.0 enx482ae347e7c3: renamed from eth0 >>>>>>> >>>>>>> In previous kernels, dmesg had more lines about it: >>>>>>> >>>>>>> r8152 8-1.1:1.0 enx482ae347e7c3: renamed from eth0 >>>>>>> r8152 8-1.1:1.0 enx482ae347e7c3: carrier on >>>>>>> r8152 8-1.1:1.0 enx482ae347e7c3: carrier off >>>>>>> r8152 8-1.1:1.0 enx482ae347e7c3: carrier on >>>>>>> >>>>>>> >>>>>>> I bisected this to d1e280334b7f ("usb: core: Fix SuperSpeed root >>>>>>> hub wMaxPacketSize"). Reverting that commit on top of 7.1.2 fixes >>>>>>> the issue. >>>>> >>>>> Incredibly bizarre, I wonder if it's some userspace madness. >>>> >>>> That reminded me that I'm using (an older upstream version of) usbguard. Unfortunately its GUI notifications when it blocks a USB device aren't working reliably currently. >>>> >>>> Manually firing up its settings app revealed that it was indeed blocking the USB3 hub. Overriding it to be allowed fixed the issue with the bisected commit. >>>> >>>> Looks like a false alert after all, sorry for the noise, and thanks for the help. >>> >>> Thanks for letting us know, and this isn't the first time that usbguard >>> has caused a problem recently. Did we change something that broke it's >>> functionality? >> >> My assumption is that this change results in usbguard considering the >> USB3 hub a different device, so the persistent settings to allow it no >> longer applied. > > "different" in what way, because it is a different speed? Why would > usbguard be prohibiting hubs? What I mean is that usbguard considers the hub two different devices with or without the bisected kernel commit. No idea what exactly makes the difference though. -- Earthling Michel Dänzer \ GNOME / Xwayland / Mesa developer https://redhat.com \ Libre software enthusiast