Thread (21 messages) flat view 21 messages, 3 authors, 2d ago

Re: [PATCH v9 0/4] ring-buffer: Fixes for subbuf resizing and persistent buffers

From: Steven Rostedt <rostedt@goodmis.org>
Date: 2026-09-03 14:30:23
Also in: lkml

On Tue,  1 Sep 2026 16:54:41 +0100
Vincent Donnefort [off-list ref] wrote:
This series addresses multiple issues discovered with the dynamic ring
buffer resizing.

I have managed to reproduce a ring_buffer_read_page() race with

 $ while true; do for i in 8 16 32; do echo $i > /sys/kernel/tracing/buffer_subbuf_size_kb; sleep 0.1; done; done
Did you do anything else while running the above?

I ask because I ran this for several hours and it didn't produce anything.
What bug does it supposed to trigger?

-- Steve
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