Re: [PATCH v5 03/10] ring-buffer: Make cpu_buffer::free_page a buffer_data_read_page
Steven Rostedt <[email protected]>
| Newsgroups | org.kernel.vger.linux-trace-kernel,dev.linux.lists.sashiko-reviews |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 13 Aug 2026 13:56:13 +0000 [email protected] wrote: > This returns -1, which tracing_buffers_read() treats as EOF. Subsequent > reads see info->spare_size == page_size, reuse the bad page, and > permanently return EOF. If you are resizing the ring buffer at the same time as reading trace_pipe_raw, yeah you may get garbage or an early EOF. It's stupid to do. -- Steve