From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1AD6B2C9D for ; Fri, 3 Dec 2021 11:36:44 +0000 (UTC) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 47D93212BD; Fri, 3 Dec 2021 11:36:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1638531403; h=from:from:reply-to: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=YxVqIw+861GcaenVjJM3bGgZxm5nCRtPOeohSohPRnM=; b=vLMfJKKFc545xbOtMxq+bv0O1JMz4b7M4KPqrY7JQNG7lIY7CLHUTas1L3Rv5nsid+O/5M LqnB+AaZg+VTkicEwGhMNdWl6H0WmnSiPtDH1uahsAWVjPnH3Y5lkbanrbi+DS7y2KfUkG Z7uzx6xoI4C0wBXIKSomnSJPkGVvgj4= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1638531403; h=from:from:reply-to: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=YxVqIw+861GcaenVjJM3bGgZxm5nCRtPOeohSohPRnM=; b=iA45PQo/fHdweVsauYxskIlaoZQvIwhGaP/c6+P5mGb2S4jsIcNGYXRl7RBRpKytDwqusc Grg/b/Z385wGQQDw== Received: from alsa1.suse.de (alsa1.suse.de [10.160.4.42]) by relay2.suse.de (Postfix) with ESMTP id 2F9AFA3B85; Fri, 3 Dec 2021 11:36:43 +0000 (UTC) Date: Fri, 03 Dec 2021 12:36:43 +0100 Message-ID: From: Takashi Iwai To: Mathias Nyman Cc: Robert Munteanu , Mathias Nyman , Greg Kroah-Hartman , tiwai@suse.com, regressions@lists.linux.dev, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Regression: plugging in USB scanner breaks all USB functionality In-Reply-To: References: <35f7428b39f996c793f5b4a6a314772681c73d7a.camel@apache.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Fri, 03 Dec 2021 11:57:38 +0100, Mathias Nyman wrote: > > On 2.12.2021 16.55, Robert Munteanu wrote: > > Hi, > > > > After updating from kernel 5.14.11 to 5.14.14 I am seeing the following > > problem: > > > > When plugging in an USB scanner ( Brother DSMobile DS-740D ) to my > > Lenovo P52 laptop I lose connection to all USB devices. Not only are > > the devices no longer available on the host, but no power is drawn by > > them. Only a reboot fixes the problem. > > > > The scanner is the only device that triggers the problem, even when it > > is the only device plugged in. I have a host of other devices, > > connected either directly or via a USB hub in my monitor: > > > > There is one xhci patch in that range that has caused other issues: > ff0e50d3564f xhci: Fix command ring pointer corruption while aborting a command > > That patch has a fix that is not yet applied, fix can be found here: > https://lore.kernel.org/linux-usb/20211126122340.1193239-2-mathias.nyman@linux.intel.com/ > or > https://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git/commit/?h=for-usb-linus&id=385b5b09c3546c87cfb730b76abe5f8d73c579a2 > > Does reverting the original patch, or applying the fix help? Thanks! For convenience, I'm building a test 15.5.x kernel for openSUSE TW in OBS home:tiwai:bsc1192569 repo. Robert, if you have time, please test it later. Takashi