linux-kernel - Re: [PATCH] perf record: Fix segmentation fault in record__read_lost

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Message-ID: <YzH6lxeZ2KYfK6lx@kernel.org>
Date:   Mon, 26 Sep 2022 20:16:39 +0100
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Namhyung Kim <namhyung@...nel.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>,
        linux-perf-users <linux-perf-users@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] perf record: Fix segmentation fault in
 record__read_lost_samples()

Em Mon, Sep 26, 2022 at 10:54:43PM +0800, Leo Yan escreveu:
> On Mon, Sep 26, 2022 at 01:59:29PM +0100, Arnaldo Carvalho de Melo wrote:
> 
> [...]
> 
> > > > Fixes: a49aa8a54e86 ("perf record: Read and inject LOST_SAMPLES events")
> > > > Signed-off-by: Leo Yan <leo.yan@...aro.org>
> > > 
> > > Thanks for the fix and sorry for the inconvenience.
> > > Actually I sent the same fix a few weeks ago.
> > > 
> > > https://lore.kernel.org/r/20220909235024.278281-1-namhyung@kernel.org
> > 
> > collecting it now, and adding that Fixes from Leo's patch, ok?
> 
> Yeah, I think it's good to add Fixes tag.  Just remind, actually
> Namhyung has mentioned Fixed tag in above link:
> 
> "I didn't add a Fixes tag as it's not sent to Linus yet. But in case you want it.
> 
>   Fixes: a49aa8a54e86 ("perf record: Read and inject LOST_SAMPLES events")
> "

I'll add it.

Sometimes I think about combining fixes with patches in my tree that
didn't made it into Linus tree yet, so that we avoid having problems
with 'git bisect', but I also try not to rebase acme/perf/core.

Perhaps in the future 'git bisect' will look at Fixes: tags :-)

- Arnaldo