linux-kernel - Re: [PATCH v2] selftests/tracing: Fix test_multiple

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Message-Id: <20260107034914.22315-1-fushuai.wang@linux.dev>
Date: Wed,  7 Jan 2026 11:49:14 +0800
From: Fushuai Wang <fushuai.wang@...ux.dev>
To: fushuai.wang@...ux.dev
Cc: linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org,
	mathieu.desnoyers@...icios.com,
	mhiramat@...nel.org,
	rostedt@...dmis.org,
	shuah@...nel.org,
	wangfushuai@...du.com
Subject: Re: [PATCH v2] selftests/tracing: Fix test_multiple_writes stall

> When /sys/kernel/tracing/buffer_size_kb is less than 12KB,
> the test_multiple_writes test will stall and wait for more
> input due to insufficient buffer space.
> 
> Check current buffer_size_kb value before the test. If it is
> less than 12KB, it temporarily increase the buffer to 12KB,
> and restore the original value after the tests are completed.
> 
> Fixes: 37f46601383a ("selftests/tracing: Add basic test for trace_marker_raw file")
> Suggested-by: Steven Rostedt <rostedt@...dmis.org>
> Signed-off-by: Fushuai Wang <wangfushuai@...du.com>

Gentle ping.

---
Regards,
WANG