Commit-ID:  41f035a86b5b72a4f947c38e94239d20d595352a
Gitweb:     https://git.kernel.org/tip/41f035a86b5b72a4f947c38e94239d20d595352a
Author:     Tony Luck <tony.l...@intel.com>
AuthorDate: Mon, 25 Feb 2019 12:59:40 -0800
Committer:  Borislav Petkov <b...@suse.de>
CommitDate: Mon, 25 Feb 2019 23:21:35 +0100

x86/mce: Improve error message when kernel cannot recover, p2

In

  c7d606f560e4 ("x86/mce: Improve error message when kernel cannot recover")

a case was added for a machine check caused by a DATA access to poison
memory from the kernel. A case should have been added also for an
uncorrectable error during an instruction fetch in the kernel.

Add that extra case so the error message now reads:

  mce: [Hardware Error]: Machine check: Instruction fetch error in kernel

Fixes: c7d606f560e4 ("x86/mce: Improve error message when kernel cannot 
recover")
Signed-off-by: Tony Luck <tony.l...@intel.com>
Signed-off-by: Borislav Petkov <b...@suse.de>
Cc: "H. Peter Anvin" <h...@zytor.com>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Pu Wen <pu...@hygon.cn>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: x86-ml <x...@kernel.org>
Link: https://lkml.kernel.org/r/20190225205940.15226-1-tony.l...@intel.com
---
 arch/x86/kernel/cpu/mce/severity.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/kernel/cpu/mce/severity.c 
b/arch/x86/kernel/cpu/mce/severity.c
index dc3e26e905a3..65201e180fe0 100644
--- a/arch/x86/kernel/cpu/mce/severity.c
+++ b/arch/x86/kernel/cpu/mce/severity.c
@@ -165,6 +165,11 @@ static struct severity {
                SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, 
MCI_UC_SAR|MCI_ADDR|MCACOD_DATA),
                KERNEL
                ),
+       MCESEV(
+               PANIC, "Instruction fetch error in kernel",
+               SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, 
MCI_UC_SAR|MCI_ADDR|MCACOD_INSTR),
+               KERNEL
+               ),
 #endif
        MCESEV(
                PANIC, "Action required: unknown MCACOD",

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