linux-kernel - Re: [PATCH] x86/mce: Pay no attention to 'F' bit in MCACOD when parsing 'UC' errors.

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Message-ID: <CA+8MBbLkWZKwG40XMXCV75Vr=6pKq9rijRamt7=qALhc72SCTQ@mail.gmail.com>
Date:	Tue, 23 Jul 2013 15:51:14 -0700
From:	Tony Luck <tony.luck@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Borislav Petkov <bp@...e.de>,
	Chen Gong <gong.chen@...ux.intel.com>,
	"Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Subject: Re: [PATCH] x86/mce: Pay no attention to 'F' bit in MCACOD when
 parsing 'UC' errors.

Gah ... there is another bug in that unaffected thread entry.  The check for
MCG_STATUS should be for RIPV=1 *and* EIPV=0

gmail will mess this patch up ... but should still be readable.

-Tony

---

diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c
b/arch/x86/kernel/cpu/mcheck/mce-severity
index 7f6ab4e..48f0fd2 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -112,7 +112,7 @@ static struct severity {
        MCESEV(
                KEEP, "Action required but unaffected thread is continuable",
                SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR,
MCI_UC_SAR|MCI_ADDR),
-               MCGMASK(MCG_STATUS_RIPV, MCG_STATUS_RIPV)
+               MCGMASK(MCG_STATUS_RIPV|MCG_STATUS_EIPV, MCG_STATUS_RIPV)
                ),
        MCESEV(
                AR, "Action required: data load error in a user process",
--
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