From 41f035a86b5b72a4f947c38e94239d20d595352a Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Mon, 25 Feb 2019 12:59:40 -0800 Subject: [PATCH] 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 Signed-off-by: Borislav Petkov Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Pu Wen Cc: Thomas Gleixner Cc: x86-ml Link: https://lkml.kernel.org/r/20190225205940.15226-1-tony.luck@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", -- 2.30.2