From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
stable kernel team <stable@vger.kernel.org>
Subject: Re: [PATCH, v5.4] perf: Correctly handle failed perf_get_aux_event()
Date: Sun, 19 Jan 2020 14:28:11 +0100 [thread overview]
Message-ID: <20200119132811.GA159416@kroah.com> (raw)
In-Reply-To: <20200118180529.GA70028@gmail.com>
On Sat, Jan 18, 2020 at 07:05:29PM +0100, Ingo Molnar wrote:
>
> * Vince Weaver <vincent.weaver@maine.edu> wrote:
>
> > On Mon, 6 Jan 2020, Vince Weaver wrote:
> >
> > > On Mon, 6 Jan 2020, Mark Rutland wrote:
> > >
> > > > On Thu, Jan 02, 2020 at 02:22:47PM -0500, Vince Weaver wrote:
> > > > > On Thu, 2 Jan 2020, Vince Weaver wrote:
> > > > >
> > > > Vince, does the below (untested) patch work for you?
> > >
> > >
> > > yes, this patch fixes things for me.
> > >
> > > Tested-by: Vince Weaver <vincent.weaver@maine.edu>
> > >
> >
> > is this patch going to make it upstream? It's a fairly major correctness
> > bug with perf_event_open().
>
> I just sent it to Linus.
>
> In hindsight this should have been marked Cc: stable for v5.4 - we should
> forward it to Greg once Linus has pulled it:
>
> da9ec3d3dd0f: ("perf: Correctly handle failed perf_get_aux_event()")
>
>
> Note that in the v5.4 cherry-pick there's a conflict due to interaction
> with another recent commit - I've attached the ported fix against v5.4,
> but have only test built it.
Thanks for the backport, now queued up.
greg k-h
next prev parent reply other threads:[~2020-01-19 13:28 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-02 18:55 [perf] perf_event_open() sometimes returning 0 Vince Weaver
2020-01-02 19:22 ` Vince Weaver
2020-01-06 12:03 ` [PATCH] perf: correctly handle failed perf_get_aux_event() (was: Re: [perf] perf_event_open() sometimes returning 0) Mark Rutland
2020-01-06 18:09 ` Vince Weaver
2020-01-16 16:45 ` Vince Weaver
2020-01-18 18:05 ` [PATCH, v5.4] perf: Correctly handle failed perf_get_aux_event() Ingo Molnar
2020-01-19 13:28 ` Greg Kroah-Hartman [this message]
2020-01-07 7:39 ` [PATCH] perf: correctly handle failed perf_get_aux_event() (was: Re: [perf] perf_event_open() sometimes returning 0) Alexander Shishkin
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