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From: Namhyung Kim <namhyung@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, 
 Arnaldo Carvalho de Melo <acme@kernel.org>, 
 Mark Rutland <mark.rutland@arm.com>, 
 Alexander Shishkin <alexander.shishkin@linux.intel.com>, 
 Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>, 
 Adrian Hunter <adrian.hunter@intel.com>, 
 James Clark <james.clark@linaro.org>, Nick Terrell <terrelln@fb.com>, 
 David Sterba <dsterba@suse.com>, Dmitry Ilvokhin <d@ilvokhin.com>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, 
 kernel-team@meta.com, Farid Zakaria <fmzakari@meta.com>
In-Reply-To: <cover.1783513665.git.d@ilvokhin.com>
References: <cover.1783513665.git.d@ilvokhin.com>
Subject: Re: [PATCH v3 0/2] perf record: fix multi-record Zstd compression
Message-Id: <178404784628.1340197.12459480082277002163.b4-ty@kernel.org>
Date: Tue, 14 Jul 2026 09:50:46 -0700
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On Wed, 08 Jul 2026 13:38:32 +0000, Dmitry Ilvokhin wrote:
> Fix a 'perf record -z' regression that aborts recording and writes a perf.data
> that cannot be decompressed (see full analysis in patch 2).
> 
> v2 -> v3:
> 
> - Dropped "perf record: Avoid overrunning the zstd output buffer" and "perf
>   record: Don't store raw data on zstd compression failure": both are now fixed
>   in perf-tools-next.
> - Added "perf record: Return the written size from process_comp_header()", a
>   no-functional-change prep patch, so the fix's per-record padding can't
>   overrun 'dst'
> - Removed blank line from record+zstd_comp_decomp_multi_record.sh between test
>   description and license (Namhyung Kim).
> - Added missing <string.h> include (Sashiko).
> - Rebased onto perf-tools-next (Namhyung Kim).
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung