This is a note to let you know that I've just added the patch titled
x86/tsc: Change Fast TSC calibration failed from error to info
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-tsc-change-fast-tsc-calibration-failed-from-error-to-info.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 520452172e6b318f3a8bd9d4fe1e25066393de25 Mon Sep 17 00:00:00 2001
From: Alexandre Demers <alexandre.f.demers@xxxxxxxxx>
Date: Tue, 9 Dec 2014 01:27:50 -0500
Subject: x86/tsc: Change Fast TSC calibration failed from error to info
From: Alexandre Demers <alexandre.f.demers@xxxxxxxxx>
commit 520452172e6b318f3a8bd9d4fe1e25066393de25 upstream.
Many users see this message when booting without knowning that it is
of no importance and that TSC calibration may have succeeded by
another way.
As explained by Paul Bolle in
http://lkml.kernel.org/r/1348488259.1436.22.camel@x61.thuisdomein
"Fast TSC calibration failed" should not be considered as an error
since other calibration methods are being tried afterward. At most,
those send a warning if they fail (not an error). So let's change
the message from error to warning.
[ tglx: Make if pr_info. It's really not important at all ]
Fixes: c767a54ba065 x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>
Signed-off-by: Alexandre Demers <alexandre.f.demers@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1418106470-6906-1-git-send-email-alexandre.f.demers@xxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/tsc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -617,7 +617,7 @@ static unsigned long quick_pit_calibrate
goto success;
}
}
- pr_err("Fast TSC calibration failed\n");
+ pr_info("Fast TSC calibration failed\n");
return 0;
success:
Patches currently in stable-queue which might be from alexandre.f.demers@xxxxxxxxx are
queue-3.18/x86-tsc-change-fast-tsc-calibration-failed-from-error-to-info.patch
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