Commit 4c281074 authored Apr 03, 2018 by Steven Rostedt (VMware)

lockdep: Add print_irqtrace_events() to __warn

Running a test on a x86_32 kernel I triggered a bug that an interrupt
disable/enable isn't being catched by lockdep. At least knowing where the
last one was found would be helpful, but the warnings that are produced do
not show this information. Even without debugging lockdep, having the WARN()
display the last place hard and soft irqs were enabled or disabled is
valuable.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

parent 1e6338cf

kernel/panic.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -554,6 +554,8 @@ void __warn(const char file, int line, void caller, unsigned taint,
		else
		dump_stack();

		print_irqtrace_events(current);

		print_oops_end_marker();

		/* Just a warning, don't kill lockdep. */

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