From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 11 Oct 2009 14:25:05 +0000 (+0100)
Subject: ARM: update die() output
X-Git-Tag: firefly_0821_release~12142^2~4
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=03a6e5bd5ba7d2a37b0bf4327b83d7c83311b0a1;p=firefly-linux-kernel-4.4.55.git

ARM: update die() output

Make die() better match x86:
- add printing of the last accessed sysfs file
- ensure console_verbose() is called under the lock
- ensure we panic outside of oops_exit()

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index b551b6504966..f838f36eb702 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -231,6 +231,7 @@ static void __die(const char *str, int err, struct thread_info *thread, struct p
 
 	printk(KERN_EMERG "Internal error: %s: %x [#%d]" S_PREEMPT S_SMP "\n",
 	       str, err, ++die_counter);
+	sysfs_printk_last_file();
 	print_modules();
 	__show_regs(regs);
 	printk(KERN_EMERG "Process %.*s (pid: %d, stack limit = 0x%p)\n",
@@ -255,13 +256,14 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 
 	oops_enter();
 
-	console_verbose();
 	spin_lock_irq(&die_lock);
+	console_verbose();
 	bust_spinlocks(1);
 	__die(str, err, thread, regs);
 	bust_spinlocks(0);
 	add_taint(TAINT_DIE);
 	spin_unlock_irq(&die_lock);
+	oops_exit();
 
 	if (in_interrupt())
 		panic("Fatal exception in interrupt");
@@ -269,7 +271,6 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 	if (panic_on_oops)
 		panic("Fatal exception");
 
-	oops_exit();
 	do_exit(SIGSEGV);
 }