From: Steven Rostedt <rostedt@goodmis.org>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
Masami Hiramatsu <mhiramat@kernel.org>
Subject: Re: [PATCH 2/4] ftrace/instances: Clear function triggers when removing instances
Date: Mon, 15 May 2017 12:11:03 -0400 [thread overview]
Message-ID: <20170515121103.65b811cb@gandalf.local.home> (raw)
In-Reply-To: <20170515112115.36825c24@gandalf.local.home>
On Mon, 15 May 2017 11:21:15 -0400
Steven Rostedt <rostedt@goodmis.org> wrote:
> On Sun, 14 May 2017 01:01:02 +0530
> "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> wrote:
>
> > If instance directories are deleted while there are registered function
> > triggers:
> >
> > # cd /sys/kernel/debug/tracing/instances
> > # mkdir test
> > # echo "schedule:enable_event:sched:sched_switch" > test/set_ftrace_filter
> > # rmdir test
> > Unable to handle kernel paging request for data at address 0x00000008
> > Unable to handle kernel paging request for data at address 0x00000008
> > Faulting instruction address: 0xc0000000021edde8
> > Oops: Kernel access of bad area, sig: 11 [#1]
> > SMP NR_CPUS=2048
> > NUMA
> > pSeries
>
> Looks like this patch needs to be marked for stable, and go in right
> away. I may also do the same for the ftracetest bashism patch with
> Masami's approval. I may also slip in the ftracetest for the bug that
> this patch fixes.
As this patch fixes a bug that was introduced with the 4.12 merge
window. Thus, it's not stable worthy (stable isn't affected). Although,
I'll wait on Masami to see if that should go to stable.
-- Steve
next prev parent reply other threads:[~2017-05-15 16:11 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-13 19:31 [PATCH 0/4] ftrace: Fix a few issues Naveen N. Rao
2017-05-13 19:31 ` [PATCH 1/4] ftrace: Simplify glob handling in unregister_ftrace_function_probe_func() Naveen N. Rao
2017-05-15 17:22 ` Steven Rostedt
2017-05-16 8:07 ` Naveen N. Rao
2017-05-13 19:31 ` [PATCH 2/4] ftrace/instances: Clear function triggers when removing instances Naveen N. Rao
2017-05-15 15:21 ` Steven Rostedt
2017-05-15 16:11 ` Steven Rostedt [this message]
2017-05-16 16:11 ` Masami Hiramatsu
2017-05-16 2:20 ` Steven Rostedt
2017-05-16 14:01 ` Naveen N. Rao
2017-05-16 17:44 ` Naveen N. Rao
2017-05-16 18:33 ` Steven Rostedt
2017-06-06 17:06 ` Shuah Khan
2017-06-06 17:37 ` Naveen N. Rao
2017-05-13 19:31 ` [PATCH 3/4] selftests/ftrace: Fix bashisms Naveen N. Rao
2017-05-15 15:16 ` Steven Rostedt
2017-05-16 14:25 ` Masami Hiramatsu
2017-05-13 19:31 ` [PATCH 4/4] selftests/ftrace: Add test to remove instance with active event triggers Naveen N. Rao
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