From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755760AbcGFTZL (ORCPT ); Wed, 6 Jul 2016 15:25:11 -0400 Received: from mail-pf0-f174.google.com ([209.85.192.174]:35530 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755453AbcGFTZJ (ORCPT ); Wed, 6 Jul 2016 15:25:09 -0400 Date: Wed, 6 Jul 2016 12:25:07 -0700 From: Viresh Kumar To: Steven Rostedt Cc: Tejun Heo , Greg Kroah-Hartman , Linux Kernel Mailing List , vlevenetz@mm-sol.com, vaibhav.hiremath@linaro.org, alex.elder@linaro.org, johan@kernel.org, akpm@linux-foundation.org, jack@suse.cz Subject: Re: [Query] Preemption (hogging) of the work handler Message-ID: <20160706192507.GE4127@ubuntu> References: <20160701165959.GR12473@ubuntu> <20160701172232.GD28719@htj.duckdns.org> <20160706182842.GS2671@ubuntu> <20160706152348.1e7ba9c7@gandalf.local.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160706152348.1e7ba9c7@gandalf.local.home> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06-07-16, 15:23, Steven Rostedt wrote: > On Wed, 6 Jul 2016 11:28:42 -0700 > Viresh Kumar wrote: > > > > > > I tried looking at if something related to this changed between 3.10 > > and mainline, and found few patches at least. One of the important > > ones is: > > > > commit 5874af2003b1 ("printk: enable interrupts before calling > > console_trylock_for_printk()") > > > > I wasn't able to backport it cleanly to 3.10 yet to see it makes thing > > work better though. But it looks like it was targeting similar > > problems. > > > > Do you have the same issues with latest mainline, or is this only a > 3.10 issue? Don't have a mainline setup to reproduce this. For now, it is only on 3.10. -- viresh