Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753767Ab1DOLgr (ORCPT ); Fri, 15 Apr 2011 07:36:47 -0400 Received: from gmmr1.centrum.cz ([90.183.38.157]:43789 "EHLO gmmr1.centrum.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751404Ab1DOLgq (ORCPT ); Fri, 15 Apr 2011 07:36:46 -0400 To: "Mel Gorman" Subject: Re: Regression from 2.6.36 Date: Fri, 15 Apr 2011 13:36:44 +0200 From: "azurIt" Cc: "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> <20110415125651.68156745@pobox.sk> <1302866247.12428.25.camel@machina.109elm.lan> In-Reply-To: <1302866247.12428.25.camel@machina.109elm.lan> X-Mailer: Centrum Email 5.3 X-Priority: 3 MIME-Version: 1.0 Message-Id: <20110415133644.12504ADB@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: 2296 Lines: 74 sysfs was already mounted: # mount sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) I have enabled all of the options you suggested and also CONFIG_DEBUG_FS ;) I will boot new kernel this night. Hope it won't degraded performance much.. ______________________________________________________________ > Od: "Mel Gorman" > Komu: azurIt > Dátum: 15.04.2011 13:17 > Predmet: Re: Regression from 2.6.36 > > CC: "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, 2011-04-15 at 12:56 +0200, azurIt wrote: >> # 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 >> > >Mount sysfs first > >mount -t sysfs none /sys > >> >> config file used for testing is here: >> http://watchdog.sk/lkml/config >> > >Try setting the following > >CONFIG_TRACEPOINTS=y >CONFIG_STACKTRACE=y >CONFIG_USER_STACKTRACE_SUPPORT=y >CONFIG_NOP_TRACER=y >CONFIG_TRACER_MAX_TRACE=y >CONFIG_FTRACE_NMI_ENTER=y >CONFIG_CONTEXT_SWITCH_TRACER=y >CONFIG_GENERIC_TRACER=y >CONFIG_FTRACE=y >CONFIG_FUNCTION_TRACER=y >CONFIG_FUNCTION_GRAPH_TRACER=y >CONFIG_IRQSOFF_TRACER=y >CONFIG_SCHED_TRACER=y >CONFIG_FTRACE_SYSCALLS=y >CONFIG_STACK_TRACER=y >CONFIG_BLK_DEV_IO_TRACE=y >CONFIG_DYNAMIC_FTRACE=y >CONFIG_FTRACE_MCOUNT_RECORD=y >CONFIG_FTRACE_SELFTEST=y >CONFIG_FTRACE_STARTUP_TEST=y >CONFIG_MMIOTRACE=y >CONFIG_HAVE_MMIOTRACE_SUPPORT=y > >-- >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/