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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_2 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 E03ACC4360C for ; Sat, 28 Sep 2019 02:41:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA68E20869 for ; Sat, 28 Sep 2019 02:41:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=nic.cz header.i=@nic.cz header.b="BfhpkU2j" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726408AbfI1Cl6 (ORCPT ); Fri, 27 Sep 2019 22:41:58 -0400 Received: from mail.nic.cz ([217.31.204.67]:59700 "EHLO mail.nic.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725306AbfI1Cl5 (ORCPT ); Fri, 27 Sep 2019 22:41:57 -0400 Received: from localhost (unknown [172.20.6.135]) by mail.nic.cz (Postfix) with ESMTPSA id D3E42140E6B; Sat, 28 Sep 2019 04:32:09 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=nic.cz; s=default; t=1569637930; bh=PHJxNmUdFjLClF3fYBn9Bw3ogSKlLPbL0/s/38ERX9k=; h=Date:From:To; b=BfhpkU2jwiK+yF9D047vrQpvCsu5DS214wxxOUaVrb6nf7Wg1p0tk4G2fa3ZpUUZC h5E3yJMyO/NEadhZBt0SdI0oQUctVJElVlh3Le14zk6cAx3oGFafQ7vkHxJZvLbau5 OU9NyuErobSoDWNVTIsdCZKvzeziq7CfTaqWVuu4= Date: Sat, 28 Sep 2019 04:32:09 +0200 From: Marek Behun To: Miquel Raynal Cc: linux-usb@vger.kernel.org, Martin Blumenstingl Subject: Re: regression from commit "usb: host: xhci-plat: Prevent an abnormally restrictive PHY init skipping" Message-ID: <20190928043209.62cfc2ef@nic.cz> In-Reply-To: <20190928042950.3ae07173@nic.cz> References: <20190928042950.3ae07173@nic.cz> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.100.3 at mail.nic.cz X-Virus-Status: Clean Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Sat, 28 Sep 2019 04:29:50 +0200 Marek Behun wrote: > Hi Miquel, > > I am encountering a regression caused by your commit eb6c2eb6c7fb > "usb: host: xhci-plat: Prevent an abnormally restrictive PHY init > skipping" [1] I forgot to explain how the regression presents itself rcu: INFO: rcu_sched detected stalls on CPUs/tasks: The kernel than hangs. Marek