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From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org,
	ebiederm@xmission.com, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] kexec: quiet down kexec reboot
Date: Tue, 23 Apr 2019 16:41:54 -0400	[thread overview]
Message-ID: <20190423204154.3085-1-pasha.tatashin@soleen.com> (raw)

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>
---
 kernel/kexec_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index d7140447be75..fe13e86984ec 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -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();
 	}
 
-- 
2.21.0


             reply	other threads:[~2019-04-23 20:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-23 20:41 Pavel Tatashin [this message]
2019-04-25  9:10 ` [PATCH] kexec: quiet down kexec reboot Simon Horman
2019-04-25 12:13   ` Pavel Tatashin
2019-04-25  9:32 ` Baoquan He
2019-04-25  9:41   ` Baoquan He
2019-04-25 12:12     ` Pavel Tatashin

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