From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755986Ab3LVWTh (ORCPT ); Sun, 22 Dec 2013 17:19:37 -0500 Received: from imp02.mtu.ru ([62.5.255.19]:56655 "EHLO imp02.mtu.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755438Ab3LVWTf (ORCPT ); Sun, 22 Dec 2013 17:19:35 -0500 X-Spam-Flag: NO Message-ID: <52B76562.7040608@pavlinux.ru> Date: Mon, 23 Dec 2013 02:19:14 +0400 From: Pavel Vasilyev Reply-To: pavel@pavlinux.ru Organization: Pavlinux. Inc. User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131118 Thunderbird/17.0.11 MIME-Version: 1.0 To: Sebastian Andrzej Siewior CC: RT , LKML Subject: Re: 3.12.5 CRASH/FREEZE References: <52A9CC77.20904@linaro.org> <52AA1CC0.30307@pavlinux.ru> <20131220141008.GE10249@linutronix.de> <52B45AEB.2060508@pavlinux.ru> <52B45CD7.5030404@linutronix.de> In-Reply-To: <52B45CD7.5030404@linutronix.de> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-DCC-STREAM-Metrics: ss27-so03.mtu.ru 10003; Body=3 Fuz1=3 Fuz2=3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 20.12.2013 19:05, Sebastian Andrzej Siewior пишет: > On 12/20/2013 03:57 PM, Pavel Vasilyev wrote: >> >> Same bug if attach to ehci hub. >> >> ksoftird/0 process of loading the CPU upto 100% Sometimes process >> irq17/0 - ehci_hcd or xhci_hcd. After taking the camera out of the >> socket, the load does not fall, keyboard and console blocked > > Okay, but this problem is unique to your webcam. Keyboard & mice to > work as usual? > Could please provide me the addr2line either for the ehci or xhci? I've > been browsing to the code and I didn't see anything obvious. > Too many bugs, too many computers ... 3.12.5-rt7 work ONLY in UP-mode!!! cmdline: nosmp maxcpus=1 In SMP mode, problems arise in different places on different computers. On Intel Atom - USB, webcam and console. On the Opteron 285 system does not boot, can't mount devtmpfs, XFS partitions ... I can not get to catch the error and find a place neither in debug mode or in normal. Because everything is frozen completely, and get to the console or logs is not possible. I described one situation where had run top and see that the process ksoftirqd/0 use CPU upto 100% P.S. 3.12.5-rt7 still work Basic-RT mode. -- Pavel.