linux-kernel - [tip:x86/debug] x86: Make sure we also print a Code: line for show

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Message-ID: <tip-a489ca355efaf9efa4990b0f8f30ab650a206273@git.kernel.org>
Date:	Tue, 3 Nov 2009 15:54:38 GMT
From:	tip-bot for Arjan van de Ven <arjan@...ux.intel.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	arjan@...ux.intel.com, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/debug] x86: Make sure we also print a Code: line for show_regs()

Commit-ID:  a489ca355efaf9efa4990b0f8f30ab650a206273
Gitweb:     http://git.kernel.org/tip/a489ca355efaf9efa4990b0f8f30ab650a206273
Author:     Arjan van de Ven <arjan@...ux.intel.com>
AuthorDate: Mon, 2 Nov 2009 16:59:15 -0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 3 Nov 2009 16:50:22 +0100

x86: Make sure we also print a Code: line for show_regs()

show_regs() is called as a mini BUG() equivalent in some places,
specifically for the "scheduling while atomic" case.

Unfortunately right now it does not print a Code: line unlike
a real bug/oops.

This patch changes the x86 implementation of show_regs() so that
it calls the same function as oopses do to print the registers
as well as the Code: line.

Signed-off-by: Arjan van de Ven <arjan@...ux.intel.com>
LKML-Reference: <20091102165915.4a980fc0@...radead.org>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/kernel/process_32.c |    2 +-
 arch/x86/kernel/process_64.c |    3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 4cf7956..e658331 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -187,7 +187,7 @@ void __show_regs(struct pt_regs *regs, int all)
 
 void show_regs(struct pt_regs *regs)
 {
-	__show_regs(regs, 1);
+	show_registers(regs);
 	show_trace(NULL, regs, &regs->sp, regs->bp);
 }
 
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ad535b6..2386999 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -226,8 +226,7 @@ void __show_regs(struct pt_regs *regs, int all)
 
 void show_regs(struct pt_regs *regs)
 {
-	printk(KERN_INFO "CPU %d:", smp_processor_id());
-	__show_regs(regs, 1);
+	show_registers(regs);
 	show_trace(NULL, regs, (void *)(regs + 1), regs->bp);
 }
 
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