Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755840Ab1DOK4y (ORCPT ); Fri, 15 Apr 2011 06:56:54 -0400 Received: from gmmr1.centrum.cz ([90.183.38.157]:33364 "EHLO gmmr1.centrum.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752870Ab1DOK4x (ORCPT ); Fri, 15 Apr 2011 06:56:53 -0400 To: "Mel Gorman" Subject: Re: Regression from 2.6.36 Date: Fri, 15 Apr 2011 12:56:51 +0200 From: "azurIt" Cc: "Mel Gorman" , "Andrew Morton" , "Eric Dumazet" , "Changli Gao" , "Am?rico Wang" , "Jiri Slaby" , , , , "Jiri Slaby" References: <1302178426.3357.34.camel@edumazet-laptop> <1302190586.3357.45.camel@edumazet-laptop> <20110412154906.70829d60.akpm@linux-foundation.org> <20110412183132.a854bffc.akpm@linux-foundation.org> <1302662256.2811.27.camel@edumazet-laptop> <20110413141600.28793661.akpm@linux-foundation.org> <20110414102501.GE11871@csn.ul.ie> <20110415115903.315DEAA1@pobox.sk> <20110415104700.GD22688@suse.de> In-Reply-To: <20110415104700.GD22688@suse.de> X-Mailer: Centrum Email 5.3 X-Priority: 3 MIME-Version: 1.0 Message-Id: <20110415125651.68156745@pobox.sk> X-Maser: brud Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1969 Lines: 55 # mount -t debugfs none /sys/kernel/debug mount: mount point /sys/kernel/debug does not exist # mkdir /sys/kernel/debug mkdir: cannot create directory `/sys/kernel/debug': No such file or directory config file used for testing is here: http://watchdog.sk/lkml/config azur ______________________________________________________________ > Od: "Mel Gorman" > Komu: azurIt > Dátum: 15.04.2011 12:47 > Predmet: Re: Regression from 2.6.36 > > CC: "Mel Gorman" , "Andrew Morton" , "Eric Dumazet" , "Changli Gao" , "Am?rico Wang" , "Jiri Slaby" , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "Jiri Slaby" >On Fri, Apr 15, 2011 at 11:59:03AM +0200, azurIt wrote: >> >> Also this new patch is working fine and fixing the problem. >> >> Mel, I cannot run your script: >> # perl watch-highorder-latency.pl >> Failed to open /sys/kernel/debug/tracing/set_ftrace_filter for writing at watch-highorder-latency.pl line 17. >> >> # ls -ld /sys/kernel/debug/ >> ls: cannot access /sys/kernel/debug/: No such file or directory >> > >mount -t debugfs none /sys/kernel/debug > >If it still doesn't work, sysfs or the necessary FTRACE options are >not enabled on your .config. I'll give you a list if that is the case. > >Thanks. > >-- >Mel Gorman >SUSE Labs >-- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/