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From: Borislav Petkov <bp@alien8.de>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: tony.luck@intel.com, gong.chen@linux.intel.com,
	ananth@in.ibm.com, masbock@linux.vnet.ibm.com, x86@kernel.org,
	linux-kernel@vger.kernel.org, bp@amd64.org, lcm@us.ibm.com,
	andi@firstfloor.org, hpa@zytor.com, tglx@linutronix.de,
	mingo@redhat.com, gregkh@suse.de, linux-edac@vger.kernel.org
Subject: Re: [PATCH v3] x86/mce: Honour bios-set CMCI threshold
Date: Wed, 17 Oct 2012 18:40:06 +0200	[thread overview]
Message-ID: <20121017164006.GA14596@x1.osrc.amd.com> (raw)
In-Reply-To: <507ED31B.7010402@linux.vnet.ibm.com>

On Wed, Oct 17, 2012 at 09:17:39PM +0530, Naveen N. Rao wrote:
> Userspace tools need this sysfs attribute so they know how to react on
> receipt of a corrected error event: whether this is the first event or
> if such events have already been threshold-ed.

What's wrong with userspace tools parsing /proc/cmdline and seeing that
mce_bios_cmci_threshold has been set since this is the only way to set
it anyway?

I still don't see any reason for that read-only sysfs attribute.

Thanks.

-- 
Regards/Gruss,
Boris.

  reply	other threads:[~2012-10-17 16:40 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-11  5:31 [PATCH v2] x86/mce: Honour bios-set CMCI threshold Naveen N. Rao
2012-09-11 16:04 ` Tony Luck
2012-09-12 12:25   ` [PATCH v3] " Naveen N. Rao
2012-09-21 11:39     ` Naveen N. Rao
2012-10-17 10:59       ` Borislav Petkov
2012-10-17 11:27         ` Naveen N. Rao
2012-10-17 13:09           ` Borislav Petkov
2012-10-17 15:47             ` Naveen N. Rao
2012-10-17 16:40               ` Borislav Petkov [this message]
2012-10-17 17:28                 ` Luck, Tony
2012-10-17 18:09                   ` Borislav Petkov
2012-10-18  5:43                   ` Naveen N. Rao
2012-10-18 13:24                     ` Borislav Petkov
2012-10-18 16:46                       ` Luck, Tony
2012-10-19 15:52         ` [tip:x86/urgent] x86, MCE: Remove bios_cmci_threshold sysfs attribute tip-bot for Borislav Petkov

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