Linux Trace Kernel
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From: Vincent Donnefort <vdonnefort@google.com>
To: rostedt@goodmis.org, mhiramat@kernel.org,
	 linux-trace-kernel@vger.kernel.org
Cc: mathieu.desnoyers@efficios.com, kernel-team@android.com,
	 linux-kernel@vger.kernel.org,
	Vincent Donnefort <vdonnefort@google.com>
Subject: [PATCH v3 18/18] Documentation/kernel-parameters: Add trace_remote
Date: Tue, 21 Jul 2026 11:36:03 +0100	[thread overview]
Message-ID: <20260721103603.342266-19-vdonnefort@google.com> (raw)
In-Reply-To: <20260721103603.342266-1-vdonnefort@google.com>

The trace_remote parameter allows configuring e a trace remote on
registration. The syntax is similar to trace_instance.

Signed-off-by: Vincent Donnefort <vdonnefort@google.com>

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index b5493a7f8f22..3c1cf3025925 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -7787,6 +7787,25 @@ Kernel parameters
 			See also Documentation/trace/ftrace.rst "trace options"
 			section.
 
+	trace_remote=[remote-info]
+			[FTRACE] Configure a trace remote instance at boot.
+			Format: <name>[^option1[^option2...]][,event1[,event2...]]
+
+			Supported options:
+
+			dump_on_panic   - Enable dumping the trace buffer on
+					  panic.
+			dmesg           - Redirect tracing output to dmesg.
+			buf_size=<size> - Set the trace buffer size (e.g. 2M).
+			poll=<ms>       - Set the trace remote polling interval
+					  in milliseconds.
+
+			Events are a comma-separated list of events to enable.
+			If events are specified, tracing is automatically enabled.
+
+			Multiple remotes can be configured by specifying this
+			parameter multiple times.
+
 	trace_trigger=[trigger-list]
 			[FTRACE] Add an event trigger on specific events.
 			Set a trigger on top of a specific event, with an optional
-- 
2.55.0.229.g6434b31f56-goog


      parent reply	other threads:[~2026-07-21 10:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-21 10:35 [PATCH v3 00/18] tracing/remotes: Add printk, dump_on_panic and boot parameters Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 01/18] tracing/remotes: Gate tracefs files opening on trace remote registration Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 02/18] tracing/remotes: Release tracefs,eventfs on registration failure Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 03/18] tracing/remotes: Use kstrtobool for boolean tracefs files Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 04/18] tracing/remotes: Use a single per-remote polling work Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 05/18] tracing/simple_ring_buffer: Add support for compressed length Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 06/18] tracing/remotes: Add dmesg tracefs file Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 07/18] tracing/remotes: selftests: Add a test for the " Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 08/18] tracing/remotes: selftests: Prefix hypervisor folder Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 09/18] ring-buffer: Use irqsave for the reader lock in ring_buffer_poll_remote Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 10/18] ring-buffer: Use panic-friendly locking in ring_buffer_iter interface Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 11/18] ring-buffer: Add ring_buffer_read_remote_meta_page() Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 12/18] ring-buffer: Add kerneldoc for ring_buffer_poll_remote Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 13/18] tracing/remotes: Add dump_on_panic tracefs file Vincent Donnefort
2026-07-21 10:35 ` [PATCH v3 14/18] tracing/remotes: selftests: Add a test for the " Vincent Donnefort
2026-07-21 10:36 ` [PATCH v3 15/18] tracing/remotes: Add poll_ms " Vincent Donnefort
2026-07-21 10:36 ` [PATCH v3 16/18] tracing/remotes: Add trace_remote cmdline options Vincent Donnefort
2026-07-21 10:36 ` [PATCH v3 17/18] Documentation: tracing/remotes: Add detailed tracefs layout Vincent Donnefort
2026-07-21 10:36 ` Vincent Donnefort [this message]

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