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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, corbet@lwn.net,
	catalin.marinas@arm.com, will@kernel.org,
	linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: [v1 1/5] kexec: quiet down kexec reboot
Date: Mon,  8 Jul 2019 17:15:24 -0400	[thread overview]
Message-ID: <20190708211528.12392-2-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20190708211528.12392-1-pasha.tatashin@soleen.com>

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>
---
 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 d5870723b8ad..2c5b72863b7b 100644
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -1169,7 +1169,7 @@ 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();
 	}
 
-- 
2.22.0


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  reply	other threads:[~2019-07-08 21:16 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-08 21:15 [v1 0/5] allow to reserve memory for normal kexec kernel Pavel Tatashin
2019-07-08 21:15 ` Pavel Tatashin [this message]
2019-07-08 21:15 ` [v1 2/5] kexec: add resource for normal kexec region Pavel Tatashin
2019-07-08 21:15 ` [v1 3/5] kexec: export common crashkernel/kexeckernel parser Pavel Tatashin
2019-07-08 21:15 ` [v1 4/5] kexec: use reserved memory for normal kexec reboot Pavel Tatashin
2019-07-08 21:15 ` [v1 5/5] arm64, kexec: reserve kexeckernel region Pavel Tatashin
2019-07-08 23:53 ` [v1 0/5] allow to reserve memory for normal kexec kernel Eric W. Biederman
2019-07-09  0:09   ` Pavel Tatashin
2019-07-09 10:18     ` James Morse
2019-07-09 10:36 ` Bhupesh Sharma
2019-07-09 10:55   ` Pavel Tatashin
2019-07-09 11:59     ` James Morse
2019-07-09 13:07       ` Pavel Tatashin
2019-07-10 15:19         ` James Morse
2019-07-10 15:56           ` Pavel Tatashin
2019-07-11  8:12             ` Vladimir Murzin
2019-07-11 12:26               ` Pavel Tatashin

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