linux-kernel - Re: excessive MSR print out during boot.

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Message-ID: <20120323035256.GA12180@redhat.com>
Date:	Thu, 22 Mar 2012 23:52:56 -0400
From:	Dave Jones <davej@...hat.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	mingo@...e.hu, Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: excessive MSR print out during boot.

On Thu, Mar 22, 2012 at 07:16:24PM -0700, Yinghai Lu wrote:
 > On Thu, Mar 22, 2012 at 7:00 PM, Dave Jones <davej@...hat.com> wrote:
 > > During bootup, I now have 162 messages like this..
 > >
 > > [    0.227346]  MSR0000001b: 00000000fee00900
 > > [    0.227465]  MSR00000021: 0000000000000001
 > > [    0.227584]  MSR0000002a: 00000000c1c81400
 > >
 > > commit 21c3fcf3e39353d4f21d50e257cc74f3204b1988 looks suspect.
 > > It claims that it will only print these out if show_msr= is passed,
 > > but that doesn't seem to be the case.
 > 
 > sorry abut that.
 > 
 > please check attached patch.
 > 
 > Thanks
 > 
 > Yinghai

 > diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
 > index ade9c79..b240323 100644
 > --- a/arch/x86/kernel/cpu/common.c
 > +++ b/arch/x86/kernel/cpu/common.c
 > @@ -998,7 +998,7 @@ void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
 >  	else
 >  		printk(KERN_CONT "\n");
 >  
 > -	__print_cpu_msr();
 > +	print_cpu_msr(c);
 >  }
 >  
 >  void __cpuinit print_cpu_msr(struct cpuinfo_x86 *c)

Looks like that did the trick, thanks!

Tested-by: Dave Jones <davej@...hat.com>

	Dave
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