linux-kernel - Re: [PATCH v1] perf test: AMD IBS swfilt skip kernel tests if paranoia is >1

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Message-ID: <aMl0brRnnyW_ofs4@x1>
Date: Tue, 16 Sep 2025 11:30:06 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ian Rogers <irogers@...gle.com>
Cc: Namhyung Kim <namhyung@...nel.org>,
	Ravi Bangoria <ravi.bangoria@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>, Mark Rutland <mark.rutland@....com>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Kan Liang <kan.liang@...ux.intel.com>,
	Collin Funk <collin.funk1@...il.com>,
	James Clark <james.clark@...aro.org>,
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] perf test: AMD IBS swfilt skip kernel tests if
 paranoia is >1

On Fri, Sep 12, 2025 at 04:37:59PM -0700, Ian Rogers wrote:
> On Fri, Sep 12, 2025 at 2:53 PM Arnaldo Carvalho de Melo
> <acme@...nel.org> wrote:
> >
> > On Mon, Sep 08, 2025 at 04:35:11PM -0700, Namhyung Kim wrote:
> > > Hi Ian,
> > >
> > > On Mon, Sep 08, 2025 at 03:17:27PM -0700, Ian Rogers wrote:
> > > > If not root and the perf_event_paranoid is set >1 swfilt will fail to
> > > > open the event failing the test. Add check to skip the test in that
> > > > case.
> > >
> > > Thanks for the fix!
> >
> > I'm taking this as an Acked-by, ok?
> 
> I have a new version but I'm discovering quite a few other issues on
> the way. There are 7 patches on top of this here:
> https://github.com/googleprodkernel/linux-perf/commits/google_tools_master/

I just checked and b4 picked the latest version of this patch as what I
have now in perf-tools-next is the same as in:

https://github.com/googleprodkernel/linux-perf/blob/google_tools_master/tools/perf/tests/shell/amd-ibs-swfilt.sh

- Arnaldo

> I'll send the new version now, but I'd been tardy as it wasn't clear I
> was done with fixes yet.
> 
> Thanks,
> Ian