From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: 3.4.4-rt13: btrfs + xfstests 006 = BOOM.. and a bonus rt_mutex deadlock report for absolutely free! Date: Tue, 17 Jul 2012 06:46:14 +0200 Message-ID: <1342500374.7353.47.camel@marge.simpson.net> References: <1342072060.7338.102.camel@marge.simpson.net> <20120713125043.GH30128@shiny> <1342260883.7368.30.camel@marge.simpson.net> <20120715175612.GF25961@shiny.int.fusionio.com> <1342404140.7659.27.camel@marge.simpson.net> <1342454547.5410.3.camel@gandalf.stny.rr.com> <1342455968.7659.93.camel@marge.simpson.net> <1342456567.7659.97.camel@marge.simpson.net> <1342458195.2783.5.camel@acer.local.home> <1342498722.7353.37.camel@marge.simpson.net> <1342499278.24525.13.camel@gandalf.stny.rr.com> <1342499648.24525.17.camel@gandalf.stny.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Chris Mason , "Chris L. Mason" , "linux-rt-users@vger.kernel.org" , LKML , linux-fsdevel , Thomas Gleixner To: Steven Rostedt Return-path: In-Reply-To: <1342499648.24525.17.camel@gandalf.stny.rr.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Tue, 2012-07-17 at 00:34 -0400, Steven Rostedt wrote: > On Tue, 2012-07-17 at 00:27 -0400, Steven Rostedt wrote: > > > Actually, I was mistaken. I forgot that we defined 'cpu_chill()' as > > msleep(1) on RT, which would keep a deadlock from happening. > > Perhaps cpu_chill() isn't a good name, as it doesn't really explain what > is happening. Perhaps one of the following? > > cpu_rest() > cpu_sleep() > cpu_deep_relax() > cpu_dream() > cpu_hypnotize() ( cpu_waste_truckloads_of_time();)