Commit d42cc530 authored Dec 04, 2019 by Pavel Tatashin Committed by Will Deacon Jan 08, 2020

kexec: quiet down kexec reboot



Here is a regular kexec command sequence and output:
=====
$ kexec --reuse-cmdline -i --load Image
$ kexec -e
[  161.342002] kexec_core: Starting new kernel

Welcome to Buildroot
buildroot login:
=====

Even when "quiet" kernel parameter is specified, "kexec_core: Starting
new kernel" is printed.

This message has  KERN_EMERG level, but there is no emergency, it is a
normal kexec operation, so quiet it down to appropriate KERN_NOTICE.

Machines that have slow console baud rate benefit from less output.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Acked-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Will Deacon <will@kernel.org>

parent 46cf053e

kernel/kexec_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1171,7 +1171,7 @@ int kernel_kexec(void)
		* CPU hotplug again; so re-enable it here.
		*/
		cpu_hotplug_enable();
		pr_emerg("Starting new kernel\n");
		pr_notice("Starting new kernel\n");
		machine_shutdown();
		}

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