linux-kernel - Re: [PATCH v1 1/2] perf record: Add 8-byte aligned event type PERF_RECORD

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Message-ID: <Z8AAcZXtuD7O3TAV@tassilo>
Date: Wed, 26 Feb 2025 22:04:33 -0800
From: Andi Kleen <ak@...ux.intel.com>
To: Chun-Tse Shao <ctshao@...gle.com>
Cc: linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...hat.com,
	acme@...nel.org, namhyung@...nel.org, mark.rutland@....com,
	alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
	irogers@...gle.com, adrian.hunter@...el.com,
	kan.liang@...ux.intel.com, terrelln@...com, leo.yan@....com,
	dvyukov@...gle.com, james.clark@...aro.org,
	christophe.leroy@...roup.eu, ben.gainey@....com,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v1 1/2] perf record: Add 8-byte aligned event type
 PERF_RECORD_COMPRESSED2

On Wed, Feb 26, 2025 at 09:34:06PM -0800, Chun-Tse Shao wrote:
> The original PERF_RECORD_COMPRESS is not 8-byte aligned, which can cause
> asan runtime error:

It seems pointless. Most architectures have cheap unaligned accesses
these days.

Just disable that error?

-Andi