linux-kernel - Re: [PATCH] riscv: perf: Fix callchain parse error with kernel tracepoint events

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Date:   Fri, 02 Jun 2023 07:57:39 -0700
From:   Palmer Dabbelt <palmer@...osinc.com>
To:     ism.hong@...ltek.com, Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Ism Hong <ism.hong@...il.com>
Cc:     linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH] riscv: perf: Fix callchain parse error with kernel
 tracepoint events


On Thu, 01 Jun 2023 17:53:55 +0800, Ism Hong wrote:
> For RISC-V, when tracing with tracepoint events, the IP and status are
> set to 0, preventing the perf code parsing the callchain and resolving
> the symbols correctly.
> 
>  ./ply 'tracepoint:kmem/kmem_cache_alloc { @[stack]=count(); }'
>  @:
>  { <STACKID4294967282> }: 1
> 
> [...]

Applied, thanks!

[1/1] riscv: perf: Fix callchain parse error with kernel tracepoint events
      https://git.kernel.org/palmer/c/9a7e8ec0d4cc

Best regards,
-- 
Palmer Dabbelt <palmer@...osinc.com>