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Diffstat (limited to 'arch/i386/kernel/traps.c')
-rw-r--r--arch/i386/kernel/traps.c108
1 files changed, 68 insertions, 40 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index 53ad954e3ba..0aaebf3e1cf 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -112,33 +112,38 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
p < (void *)tinfo + THREAD_SIZE - 3;
}
+static void print_addr_and_symbol(unsigned long addr, char *log_lvl)
+{
+ printk(log_lvl);
+ printk(" [<%08lx>] ", addr);
+ print_symbol("%s", addr);
+ printk("\n");
+}
+
static inline unsigned long print_context_stack(struct thread_info *tinfo,
- unsigned long *stack, unsigned long ebp)
+ unsigned long *stack, unsigned long ebp,
+ char *log_lvl)
{
unsigned long addr;
#ifdef CONFIG_FRAME_POINTER
while (valid_stack_ptr(tinfo, (void *)ebp)) {
addr = *(unsigned long *)(ebp + 4);
- printk(" [<%08lx>] ", addr);
- print_symbol("%s", addr);
- printk("\n");
+ print_addr_and_symbol(addr, log_lvl);
ebp = *(unsigned long *)ebp;
}
#else
while (valid_stack_ptr(tinfo, stack)) {
addr = *stack++;
- if (__kernel_text_address(addr)) {
- printk(" [<%08lx>]", addr);
- print_symbol(" %s", addr);
- printk("\n");
- }
+ if (__kernel_text_address(addr))
+ print_addr_and_symbol(addr, log_lvl);
}
#endif
return ebp;
}
-void show_trace(struct task_struct *task, unsigned long * stack)
+static void show_trace_log_lvl(struct task_struct *task,
+ unsigned long *stack, char *log_lvl)
{
unsigned long ebp;
@@ -157,15 +162,21 @@ void show_trace(struct task_struct *task, unsigned long * stack)
struct thread_info *context;
context = (struct thread_info *)
((unsigned long)stack & (~(THREAD_SIZE - 1)));
- ebp = print_context_stack(context, stack, ebp);
+ ebp = print_context_stack(context, stack, ebp, log_lvl);
stack = (unsigned long*)context->previous_esp;
if (!stack)
break;
- printk(" =======================\n");
+ printk(KERN_EMERG " =======================\n");
}
}
-void show_stack(struct task_struct *task, unsigned long *esp)
+void show_trace(struct task_struct *task, unsigned long * stack)
+{
+ show_trace_log_lvl(task, stack, "");
+}
+
+static void show_stack_log_lvl(struct task_struct *task, unsigned long *esp,
+ char *log_lvl)
{
unsigned long *stack;
int i;
@@ -178,15 +189,26 @@ void show_stack(struct task_struct *task, unsigned long *esp)
}
stack = esp;
+ printk(log_lvl);
for(i = 0; i < kstack_depth_to_print; i++) {
if (kstack_end(stack))
break;
- if (i && ((i % 8) == 0))
- printk("\n ");
+ if (i && ((i % 8) == 0)) {
+ printk("\n");
+ printk(log_lvl);
+ printk(" ");
+ }
printk("%08lx ", *stack++);
}
- printk("\nCall Trace:\n");
- show_trace(task, esp);
+ printk("\n");
+ printk(log_lvl);
+ printk("Call Trace:\n");
+ show_trace_log_lvl(task, esp, log_lvl);
+}
+
+void show_stack(struct task_struct *task, unsigned long *esp)
+{
+ show_stack_log_lvl(task, esp, "");
}
/*
@@ -216,18 +238,18 @@ void show_registers(struct pt_regs *regs)
ss = regs->xss & 0xffff;
}
print_modules();
- printk("CPU: %d\nEIP: %04x:[<%08lx>] %s VLI\nEFLAGS: %08lx"
- " (%s) \n",
+ printk(KERN_EMERG "CPU: %d\nEIP: %04x:[<%08lx>] %s VLI\n"
+ "EFLAGS: %08lx (%s) \n",
smp_processor_id(), 0xffff & regs->xcs, regs->eip,
print_tainted(), regs->eflags, system_utsname.release);
- print_symbol("EIP is at %s\n", regs->eip);
- printk("eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
+ print_symbol(KERN_EMERG "EIP is at %s\n", regs->eip);
+ printk(KERN_EMERG "eax: %08lx ebx: %08lx ecx: %08lx edx: %08lx\n",
regs->eax, regs->ebx, regs->ecx, regs->edx);
- printk("esi: %08lx edi: %08lx ebp: %08lx esp: %08lx\n",
+ printk(KERN_EMERG "esi: %08lx edi: %08lx ebp: %08lx esp: %08lx\n",
regs->esi, regs->edi, regs->ebp, esp);
- printk("ds: %04x es: %04x ss: %04x\n",
+ printk(KERN_EMERG "ds: %04x es: %04x ss: %04x\n",
regs->xds & 0xffff, regs->xes & 0xffff, ss);
- printk("Process %s (pid: %d, threadinfo=%p task=%p)",
+ printk(KERN_EMERG "Process %s (pid: %d, threadinfo=%p task=%p)",
current->comm, current->pid, current_thread_info(), current);
/*
* When in-kernel, we also print out the stack and code at the
@@ -236,10 +258,10 @@ void show_registers(struct pt_regs *regs)
if (in_kernel) {
u8 __user *eip;
- printk("\nStack: ");
- show_stack(NULL, (unsigned long*)esp);
+ printk("\n" KERN_EMERG "Stack: ");
+ show_stack_log_lvl(NULL, (unsigned long *)esp, KERN_EMERG);
- printk("Code: ");
+ printk(KERN_EMERG "Code: ");
eip = (u8 __user *)regs->eip - 43;
for (i = 0; i < 64; i++, eip++) {
@@ -280,15 +302,15 @@ static void handle_BUG(struct pt_regs *regs)
(unsigned long)file < PAGE_OFFSET || __get_user(c, file))
file = "<bad filename>";
- printk("------------[ cut here ]------------\n");
- printk(KERN_ALERT "kernel BUG at %s:%d!\n", file, line);
+ printk(KERN_EMERG "------------[ cut here ]------------\n");
+ printk(KERN_EMERG "kernel BUG at %s:%d!\n", file, line);
no_bug:
return;
/* Here we know it was a BUG but file-n-line is unavailable */
bug:
- printk("Kernel BUG\n");
+ printk(KERN_EMERG "Kernel BUG\n");
}
/* This is gone through when something in the kernel
@@ -321,16 +343,20 @@ void die(const char * str, struct pt_regs * regs, long err)
if (++die.lock_owner_depth < 3) {
int nl = 0;
handle_BUG(regs);
- printk(KERN_ALERT "%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
+ printk(KERN_EMERG "%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
#ifdef CONFIG_PREEMPT
- printk("PREEMPT ");
+ printk(KERN_EMERG "PREEMPT ");
nl = 1;
#endif
#ifdef CONFIG_SMP
+ if (!nl)
+ printk(KERN_EMERG);
printk("SMP ");
nl = 1;
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
+ if (!nl)
+ printk(KERN_EMERG);
printk("DEBUG_PAGEALLOC");
nl = 1;
#endif
@@ -339,7 +365,7 @@ void die(const char * str, struct pt_regs * regs, long err)
notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
show_registers(regs);
} else
- printk(KERN_ERR "Recursive die() failure, output suppressed\n");
+ printk(KERN_EMERG "Recursive die() failure, output suppressed\n");
bust_spinlocks(0);
die.lock_owner = -1;
@@ -527,8 +553,10 @@ gp_in_kernel:
static void mem_parity_error(unsigned char reason, struct pt_regs * regs)
{
- printk("Uhhuh. NMI received. Dazed and confused, but trying to continue\n");
- printk("You probably have a hardware problem with your RAM chips\n");
+ printk(KERN_EMERG "Uhhuh. NMI received. Dazed and confused, but trying "
+ "to continue\n");
+ printk(KERN_EMERG "You probably have a hardware problem with your RAM "
+ "chips\n");
/* Clear and disable the memory parity error line. */
clear_mem_error(reason);
@@ -538,7 +566,7 @@ static void io_check_error(unsigned char reason, struct pt_regs * regs)
{
unsigned long i;
- printk("NMI: IOCK error (debug interrupt?)\n");
+ printk(KERN_EMERG "NMI: IOCK error (debug interrupt?)\n");
show_registers(regs);
/* Re-enable the IOCK line, wait for a few seconds */
@@ -580,11 +608,11 @@ void die_nmi (struct pt_regs *regs, const char *msg)
* to get a message out.
*/
bust_spinlocks(1);
- printk(msg);
+ printk(KERN_EMERG "%s", msg);
printk(" on CPU%d, eip %08lx, registers:\n",
smp_processor_id(), regs->eip);
show_registers(regs);
- printk("console shuts up ...\n");
+ printk(KERN_EMERG "console shuts up ...\n");
console_silent();
spin_unlock(&nmi_print_lock);
bust_spinlocks(0);
@@ -990,8 +1018,8 @@ asmlinkage void math_state_restore(struct pt_regs regs)
asmlinkage void math_emulate(long arg)
{
- printk("math-emulation not enabled and no coprocessor found.\n");
- printk("killing %s.\n",current->comm);
+ printk(KERN_EMERG "math-emulation not enabled and no coprocessor found.\n");
+ printk(KERN_EMERG "killing %s.\n",current->comm);
force_sig(SIGFPE,current);
schedule();
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-04 18:14:54 +0000