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Diffstat (limited to 'arch/x86/kernel/dumpstack.c')
-rw-r--r--arch/x86/kernel/dumpstack.c51
1 files changed, 9 insertions, 42 deletions
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index df20723a6a1b..e2a3f0606da4 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -27,7 +27,7 @@ static int die_counter;
27 27
28void printk_address(unsigned long address, int reliable) 28void printk_address(unsigned long address, int reliable)
29{ 29{
30 printk(" [<%p>] %s%pS\n", (void *) address, 30 printk(" [<%p>] %s%pB\n", (void *) address,
31 reliable ? "" : "? ", (void *) address); 31 reliable ? "" : "? ", (void *) address);
32} 32}
33 33
@@ -175,21 +175,21 @@ static const struct stacktrace_ops print_trace_ops = {
175 175
176void 176void
177show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs, 177show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
178 unsigned long *stack, char *log_lvl) 178 unsigned long *stack, unsigned long bp, char *log_lvl)
179{ 179{
180 printk("%sCall Trace:\n", log_lvl); 180 printk("%sCall Trace:\n", log_lvl);
181 dump_trace(task, regs, stack, &print_trace_ops, log_lvl); 181 dump_trace(task, regs, stack, bp, &print_trace_ops, log_lvl);
182} 182}
183 183
184void show_trace(struct task_struct *task, struct pt_regs *regs, 184void show_trace(struct task_struct *task, struct pt_regs *regs,
185 unsigned long *stack) 185 unsigned long *stack, unsigned long bp)
186{ 186{
187 show_trace_log_lvl(task, regs, stack, ""); 187 show_trace_log_lvl(task, regs, stack, bp, "");
188} 188}
189 189
190void show_stack(struct task_struct *task, unsigned long *sp) 190void show_stack(struct task_struct *task, unsigned long *sp)
191{ 191{
192 show_stack_log_lvl(task, NULL, sp, ""); 192 show_stack_log_lvl(task, NULL, sp, 0, "");
193} 193}
194 194
195/* 195/*
@@ -197,14 +197,16 @@ void show_stack(struct task_struct *task, unsigned long *sp)
197 */ 197 */
198void dump_stack(void) 198void dump_stack(void)
199{ 199{
200 unsigned long bp;
200 unsigned long stack; 201 unsigned long stack;
201 202
203 bp = stack_frame(current, NULL);
202 printk("Pid: %d, comm: %.20s %s %s %.*s\n", 204 printk("Pid: %d, comm: %.20s %s %s %.*s\n",
203 current->pid, current->comm, print_tainted(), 205 current->pid, current->comm, print_tainted(),
204 init_utsname()->release, 206 init_utsname()->release,
205 (int)strcspn(init_utsname()->version, " "), 207 (int)strcspn(init_utsname()->version, " "),
206 init_utsname()->version); 208 init_utsname()->version);
207 show_trace(NULL, NULL, &stack); 209 show_trace(NULL, NULL, &stack, bp);
208} 210}
209EXPORT_SYMBOL(dump_stack); 211EXPORT_SYMBOL(dump_stack);
210 212
@@ -320,41 +322,6 @@ void die(const char *str, struct pt_regs *regs, long err)
320 oops_end(flags, regs, sig); 322 oops_end(flags, regs, sig);
321} 323}
322 324
323void notrace __kprobes
324die_nmi(char *str, struct pt_regs *regs, int do_panic)
325{
326 unsigned long flags;
327
328 if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, 2, SIGINT) == NOTIFY_STOP)
329 return;
330
331 /*
332 * We are in trouble anyway, lets at least try
333 * to get a message out.
334 */
335 flags = oops_begin();
336 printk(KERN_EMERG "%s", str);
337 printk(" on CPU%d, ip %08lx, registers:\n",
338 smp_processor_id(), regs->ip);
339 show_registers(regs);
340 oops_end(flags, regs, 0);
341 if (do_panic || panic_on_oops)
342 panic("Non maskable interrupt");
343 nmi_exit();
344 local_irq_enable();
345 do_exit(SIGBUS);
346}
347
348static int __init oops_setup(char *s)
349{
350 if (!s)
351 return -EINVAL;
352 if (!strcmp(s, "panic"))
353 panic_on_oops = 1;
354 return 0;
355}
356early_param("oops", oops_setup);
357
358static int __init kstack_setup(char *s) 325static int __init kstack_setup(char *s)
359{ 326{
360 if (!s) 327 if (!s)