Thread (25 messages) 25 messages, 2 authors, 3d ago
WARM3d

[PATCH v7 20/20] Documentation/kernel-parameters: Add trace_remote

From: Vincent Donnefort <hidden>
Date: 2026-09-24 14:58:48
Also in: lkml
Subsystem: documentation, the rest · Maintainers: Jonathan Corbet, Linus Torvalds

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

Signed-off-by: Vincent Donnefort <redacted>
---
 .../admin-guide/kernel-parameters.txt         | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 33cd30996e47..613941ea31c9 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -7824,6 +7824,25 @@ 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
-- 
2.56.0.rc1.310.g51773c2048-goog
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