linux-kernel - [PATCH] Print number of oopses in Sysrq-P output

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Date:	Thu, 18 Jan 2007 20:05:22 +0300
From:	Alexey Dobriyan <adobriyan@...nvz.org>
To:	ak@...e.de
Cc:	Pavel Emelianov <xemul@...nvz.org>, devel@...nvz.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Print number of oopses in Sysrq-P output

From: Pavel Emelianov <xemul@...nvz.org>

Useful in deciding whether said output should be ignored
in absence of other info. :)

Signed-off-by: Pavel Emelianov <xemul@...nvz.org>
Signed-off-by: Alexey Dobriyan <adobriyan@...nvz.org>
---

 arch/i386/kernel/process.c   |    4 +++-
 arch/i386/kernel/traps.c     |    2 +-
 arch/x86_64/kernel/process.c |    6 ++++--
 arch/x86_64/kernel/traps.c   |    3 ++-
 4 files changed, 10 insertions(+), 5 deletions(-)

--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -292,9 +292,11 @@ __setup("idle=", idle_setup);
 void show_regs(struct pt_regs * regs)
 {
 	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
+	extern int die_counter;
 
 	printk("\n");
-	printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
+	printk("Pid: %d, comm: %20s, oopses: %d\n",
+		current->pid, current->comm, die_counter);
 	printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
 	print_symbol("EIP is at %s\n", regs->eip);
 
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -366,6 +366,7 @@ int is_valid_bugaddr(unsigned long eip)
 	return ud2 == 0x0b0f;
 }
 
+int die_counter = 0;
 /*
  * This is gone through when something in the kernel has done something bad and
  * is about to be terminated.
@@ -381,7 +382,6 @@ void die(const char * str, struct pt_reg
 		.lock_owner =		-1,
 		.lock_owner_depth =	0
 	};
-	static int die_counter;
 	unsigned long flags;
 
 	oops_enter();
--- a/arch/x86_64/kernel/process.c
+++ b/arch/x86_64/kernel/process.c
@@ -305,14 +305,16 @@ void __show_regs(struct pt_regs * regs)
 	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs;
 	unsigned int fsindex,gsindex;
 	unsigned int ds,cs,es; 
+	extern int die_counter;
 
 	printk("\n");
 	print_modules();
-	printk("Pid: %d, comm: %.20s %s %s %.*s\n",
+	printk("Pid: %d, comm: %.20s %s %s %.*s oopses: %d\n",
 		current->pid, current->comm, print_tainted(),
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
-		init_utsname()->version);
+		init_utsname()->version,
+		die_counter);
 	printk("RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->rip);
 	printk_address(regs->rip); 
 	printk("RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss, regs->rsp,
--- a/arch/x86_64/kernel/traps.c
+++ b/arch/x86_64/kernel/traps.c
@@ -519,9 +519,10 @@ void __kprobes oops_end(unsigned long fl
 	oops_exit();
 }
 
+int die_counter = 0;
+
 void __kprobes __die(const char * str, struct pt_regs * regs, long err)
 {
-	static int die_counter;
 	printk(KERN_EMERG "%s: %04lx [%u] ", str, err & 0xffff,++die_counter);
 #ifdef CONFIG_PREEMPT
 	printk("PREEMPT ");

-
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