From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dong Liu Subject: Re: cpu stall and hyperthread Date: Mon, 09 Jul 2012 10:46:48 -0400 Message-ID: <4FFAEED8.5010108@gmail.com> References: <4FEBCDDE.60503@gmail.com> <4FF68396.2010904@gmail.com> <4FF6CEA6.6080900@osadl.org> <4FFA5F31.4030309@gmail.com> <4FFA7FF9.2030004@osadl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "linux-rt-users@vger.kernel.org" To: Carsten Emde Return-path: Received: from mail-bk0-f46.google.com ([209.85.214.46]:43701 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754384Ab2GIOqs (ORCPT ); Mon, 9 Jul 2012 10:46:48 -0400 Received: by bkwj10 with SMTP id j10so6039226bkw.19 for ; Mon, 09 Jul 2012 07:46:47 -0700 (PDT) In-Reply-To: <4FFA7FF9.2030004@osadl.org> Sender: linux-rt-users-owner@vger.kernel.org List-ID: I tried remove CONFIG_RT_GROUP_SCHED=y, it still had cpu stall, so I just captured the original config. Ok, here is capture of the kernel without CONFIG_RT_GROUP_SCHED=y The directory URL is here, http://192.11.154.97:3333/project/ 3.2.18-2.el6.preempt_rt.x86_64-rt29 is the system config. I have kernel function capture and dmesg output. BTW, the system will lock up and cpu stall repeatly after the initial one. Even "cat /sys/kernel/debug/tracing/trace > trace-out.txt" takes very long time. Thanks, Dong On 7/9/12 2:53 AM, Carsten Emde wrote: > On 07/09/2012 06:33 AM, Dong Liu wrote: >> And here is the URL for kernel's .config > CONFIG_RT_GROUP_SCHED=y > Why is this? > > -Carsten.