From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Rostedt Date: Thu, 04 Feb 2016 10:06:07 -0500 Subject: [LTP] [PATCH] ftrace_stress_test: check if tracing_enabled is supported In-Reply-To: <20160204142830.GA11527@rei.lan> References: <1450934523-69837-1-git-send-email-chuhu@redhat.com> <20160204142830.GA11527@rei.lan> Message-ID: <1454598367.1195.45.camel@fedora> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it On Thu, 2016-02-04 at 15:28 +0100, Cyril Hrubis wrote: > Hi! > > When running the tests on RHEL7, got message as below: > > --------- > > /mnt/testarea/ltp/testcases/bin/ftrace_stress/ftrace_tracing_enabled.sh: line 25: /mnt/testarea/ltp/testcases/bin/debugfs/tracing/tracing_enabled: Permission denied > > /mnt/testarea/ltp/testcases/bin/ftrace_stress/ftrace_tracing_enabled.sh: line 26: /mnt/testarea/ltp/testcases/bin/debugfs/tracing/tracing_enabled: Permission denied > > --------- > > > > The reason is that the tracing_enabled file has been removed > > since kernel v3.8 by commits: > > > > 02404ba tracing: Remove deprecated tracing_enabled file > > 0fb9656 tracing: Make tracing_enabled be equal to tracing_on > > 6752ab4 tracing: Deprecate tracing_enabled for tracing_on > > Looking at the commits shouldn't we use tracing_on instead of > tracing_enabled on newer kernels? > Yes, and you should be using tracing_on even in older kernels. tracing_enabled has been deprecated for a long time now. -- Steve