patches/old/x86-mce-dump-error-msg-from-severities.patch

From: Shuai Xue <xueshuai@linux.alibaba.com>
Subject: x86/mce: dump error msg from severities
Date: Mon, 17 Feb 2025 14:33:32 +0800

The message in severities is useful for identifying the type of MCE that
has occurred; dump it if it is valid.

Link: https://lkml.kernel.org/r/20250217063335.22257-3-xueshuai@linux.alibaba.com
Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
Cc: Acked-by:Thomas Gleixner <tglx@linutronix.de>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Borislav Betkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jane Chu <jane.chu@oracle.com>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ruidong Tian <tianruidong@linux.alibaba.com>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/x86/kernel/cpu/mce/core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/x86/kernel/cpu/mce/core.c~x86-mce-dump-error-msg-from-severities
+++ a/arch/x86/kernel/cpu/mce/core.c
@@ -1456,6 +1456,8 @@ static void queue_task_work(struct mce_h
 	if (count > 1)
 		return;
 
+	if (msg)
+		pr_err("%s\n", msg);
 	task_work_add(current, &current->mce_kill_me, TWA_RESUME);
 }
 
_