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-rw-r--r--arch/alpha/kernel/traps.c7
-rw-r--r--arch/arc/kernel/stacktrace.c7
-rw-r--r--arch/arm/kernel/traps.c7
-rw-r--r--arch/arm64/kernel/traps.c7
-rw-r--r--arch/avr32/kernel/process.c8
-rw-r--r--arch/blackfin/kernel/dumpstack.c1
-rw-r--r--arch/c6x/kernel/traps.c9
-rw-r--r--arch/cris/kernel/traps.c7
-rw-r--r--arch/frv/kernel/traps.c11
-rw-r--r--arch/h8300/kernel/traps.c7
-rw-r--r--arch/hexagon/kernel/traps.c8
-rw-r--r--arch/ia64/kernel/process.c8
-rw-r--r--arch/m32r/kernel/traps.c9
-rw-r--r--arch/m68k/kernel/traps.c12
-rw-r--r--arch/metag/kernel/traps.c6
-rw-r--r--arch/microblaze/kernel/traps.c6
-rw-r--r--arch/mips/kernel/traps.c13
-rw-r--r--arch/mn10300/kernel/traps.c11
-rw-r--r--arch/openrisc/kernel/traps.c11
-rw-r--r--arch/parisc/kernel/traps.c8
-rw-r--r--arch/powerpc/kernel/process.c6
-rw-r--r--arch/s390/kernel/dumpstack.c17
-rw-r--r--arch/score/kernel/traps.c10
-rw-r--r--arch/sh/kernel/dumpstack.c6
-rw-r--r--arch/sparc/kernel/process_32.c7
-rw-r--r--arch/sparc/kernel/traps_64.c7
-rw-r--r--arch/um/kernel/sysrq.c12
-rw-r--r--arch/unicore32/kernel/traps.c6
-rw-r--r--arch/x86/kernel/dumpstack.c18
-rw-r--r--arch/xtensa/kernel/traps.c8
-rw-r--r--include/linux/printk.h5
-rw-r--r--kernel/printk.c18
-rw-r--r--lib/dump_stack.c11
33 files changed, 32 insertions, 262 deletions
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 4037461a649..affccb959a9 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -169,13 +169,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
dik_show_trace(sp);
}
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
void
die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15)
{
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index a63ff842564..ca0207b9d5b 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -220,13 +220,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
show_stacktrace(tsk, NULL);
}
-/* Expected by Rest of kernel code */
-void dump_stack(void)
-{
- show_stacktrace(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
/* Another API expected by schedular, shows up in "ps" as Wait Channel
* Ofcourse just returning schedule( ) would be pointless so unwind until
* the function is not in schedular code
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 1c089119b2d..18b32e8e449 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -204,13 +204,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
}
#endif
-void dump_stack(void)
-{
- dump_backtrace(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index b3c5f628bdb..61d7dd29f75 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -167,13 +167,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
}
}
-void dump_stack(void)
-{
- dump_backtrace(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);
diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 073c3c2fa52..89a8017e8ca 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -204,14 +204,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
show_stack_log_lvl(tsk, (unsigned long)stack, NULL, "");
}
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_trace_log_lvl(current, &stack, NULL, "");
-}
-EXPORT_SYMBOL(dump_stack);
-
static const char *cpu_modes[] = {
"Application", "Supervisor", "Interrupt level 0", "Interrupt level 1",
"Interrupt level 2", "Interrupt level 3", "Exception", "NMI"
diff --git a/arch/blackfin/kernel/dumpstack.c b/arch/blackfin/kernel/dumpstack.c
index 5cfbaa29821..95ba6d9e9a3 100644
--- a/arch/blackfin/kernel/dumpstack.c
+++ b/arch/blackfin/kernel/dumpstack.c
@@ -168,6 +168,7 @@ void dump_stack(void)
#endif
trace_buffer_save(tflags);
dump_bfin_trace_buffer();
+ dump_stack_print_info(KERN_DEFAULT);
show_stack(current, &stack);
trace_buffer_restore(tflags);
}
diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
index 1be74e5b478..d0b96ef25c1 100644
--- a/arch/c6x/kernel/traps.c
+++ b/arch/c6x/kernel/traps.c
@@ -67,15 +67,6 @@ void show_regs(struct pt_regs *regs)
pr_err("A31: %08lx B31: %08lx\n", regs->a31, regs->b31);
}
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_stack(current, &stack);
-}
-EXPORT_SYMBOL(dump_stack);
-
-
void die(char *str, struct pt_regs *fp, int nr)
{
console_verbose();
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index a11ad3229f8..0ffda73734f 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -147,13 +147,6 @@ show_stack(void)
#endif
void
-dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
-void
set_nmi_handler(void (*handler)(struct pt_regs *))
{
nmi_handler = handler;
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 5cfd1420b09..cfcd802d6f9 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -466,17 +466,6 @@ asmlinkage void compound_exception(unsigned long esfr1,
BUG();
} /* end compound_exception() */
-/*****************************************************************************/
-/*
- * The architecture-independent backtrace generator
- */
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *task, unsigned long *sp)
{
}
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
index 7833aa3e7c7..cfe494dbe3d 100644
--- a/arch/h8300/kernel/traps.c
+++ b/arch/h8300/kernel/traps.c
@@ -164,10 +164,3 @@ void show_trace_task(struct task_struct *tsk)
{
show_stack(tsk,(unsigned long *)tsk->thread.esp0);
}
-
-void dump_stack(void)
-{
- show_stack(NULL,NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index be5e2dd9c9d..cc2171b2aa0 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -191,14 +191,6 @@ void show_stack(struct task_struct *task, unsigned long *fp)
do_show_stack(task, fp, 0);
}
-void dump_stack(void)
-{
- unsigned long *fp;
- asm("%0 = r30" : "=r" (fp));
- show_stack(current, fp);
-}
-EXPORT_SYMBOL(dump_stack);
-
int die(const char *str, struct pt_regs *regs, long err)
{
static struct {
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index a26fc640e4c..182bd64cc72 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -96,14 +96,6 @@ show_stack (struct task_struct *task, unsigned long *sp)
}
void
-dump_stack (void)
-{
- show_stack(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-void
show_regs (struct pt_regs *regs)
{
unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 9fe3467a513..a7a424f852e 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -167,15 +167,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(task, sp);
}
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_trace(current, &stack);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
static void show_registers(struct pt_regs *regs)
{
int i = 0;
diff --git a/arch/m68k/kernel/traps.c b/arch/m68k/kernel/traps.c
index f32ab22e7ed..88fcd8c70e7 100644
--- a/arch/m68k/kernel/traps.c
+++ b/arch/m68k/kernel/traps.c
@@ -992,18 +992,6 @@ void show_stack(struct task_struct *task, unsigned long *stack)
}
/*
- * The architecture-independent backtrace generator
- */
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_trace(&stack);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-/*
* The vector number returned in the frame pointer may also contain
* the "fs" (Fault Status) bits on ColdFire. These are in the bottom
* 2 bits, and upper 2 bits. So we need to mask out the real vector
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 8961f247b50..2ceeaae5b19 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -987,9 +987,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
show_trace(tsk, sp, NULL);
}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
index 30e6b5004a6..cb619533a19 100644
--- a/arch/microblaze/kernel/traps.c
+++ b/arch/microblaze/kernel/traps.c
@@ -75,9 +75,3 @@ void show_stack(struct task_struct *task, unsigned long *sp)
debug_show_held_locks(task);
}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c3abb88170f..b512b28cf78 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -206,19 +206,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_stacktrace(task, &regs);
}
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- struct pt_regs regs;
-
- prepare_frametrace(&regs);
- show_backtrace(current, &regs);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
static void show_code(unsigned int __user *pc)
{
long i;
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
index b900e5afa0a..a7a987c7954 100644
--- a/arch/mn10300/kernel/traps.c
+++ b/arch/mn10300/kernel/traps.c
@@ -294,17 +294,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
}
/*
- * the architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_stack(current, &stack);
-}
-EXPORT_SYMBOL(dump_stack);
-
-/*
* dump the register file in the specified exception frame
*/
void show_registers_only(struct pt_regs *regs)
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 5cce396016d..3d3f6062f49 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -105,17 +105,6 @@ void show_trace_task(struct task_struct *tsk)
*/
}
-/*
- * The architecture-independent backtrace generator
- */
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_stack(current, &stack);
-}
-EXPORT_SYMBOL(dump_stack);
-
void show_registers(struct pt_regs *regs)
{
int i;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index aeb8f8f2c07..e64cf5f09b6 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -158,14 +158,6 @@ void show_regs(struct pt_regs *regs)
}
}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
static void do_show_stack(struct unwind_frame_info *info)
{
int i = 1;
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 16e77a81ab4..624d44bb44d 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1362,12 +1362,6 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
} while (count++ < kstack_depth_to_print);
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
#ifdef CONFIG_PPC64
/* Called with hard IRQs off */
void __ppc64_runlatch_on(void)
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 03dce39d01e..2f1f639d1a3 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -129,23 +129,6 @@ static void show_last_breaking_event(struct pt_regs *regs)
#endif
}
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- printk("CPU: %d %s %s %.*s\n",
- task_thread_info(current)->cpu, print_tainted(),
- init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
- printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
- current->comm, current->pid, current,
- (void *) current->thread.ksp);
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
static inline int mask_bits(struct pt_regs *regs, unsigned long bits)
{
return (regs->psw.mask & bits) / ((~bits + 1) & bits);
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 0e46fb19a84..a38f435fba7 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -149,16 +149,6 @@ static void show_registers(struct pt_regs *regs)
printk(KERN_NOTICE "\n");
}
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- show_stack(current_thread_info()->task,
- (long *) get_irq_regs()->regs[0]);
-}
-EXPORT_SYMBOL(dump_stack);
-
void __die(const char *str, struct pt_regs *regs, const char *file,
const char *func, unsigned long line)
{
diff --git a/arch/sh/kernel/dumpstack.c b/arch/sh/kernel/dumpstack.c
index 7617dc4129a..b959f559260 100644
--- a/arch/sh/kernel/dumpstack.c
+++ b/arch/sh/kernel/dumpstack.c
@@ -158,9 +158,3 @@ void show_stack(struct task_struct *tsk, unsigned long *sp)
(unsigned long)task_stack_page(tsk));
show_trace(tsk, sp, NULL);
}
-
-void dump_stack(void)
-{
- show_stack(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 2be4214b390..dccf5f58d70 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -164,13 +164,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
printk("\n");
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
/*
* Note: sparc64 has a pretty intricated thread_saved_pc, check it out.
*/
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index 8d38ca97aa2..b3f833ab90e 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -2350,13 +2350,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
} while (++count < 16);
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
static inline struct reg_window *kernel_stack_up(struct reg_window *rw)
{
unsigned long fp = rw->ins[6];
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index e562ff80409..7d101a2a154 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -35,18 +35,6 @@ void show_trace(struct task_struct *task, unsigned long * stack)
}
#endif
-/*
- * stack dumps generator - this is used by arch-independent code.
- * And this is identical to i386 currently.
- */
-void dump_stack(void)
-{
- unsigned long stack;
-
- show_trace(current, &stack);
-}
-EXPORT_SYMBOL(dump_stack);
-
/*Stolen from arch/i386/kernel/traps.c */
static const int kstack_depth_to_print = 24;
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index 0870b68d2ad..c54e32410ea 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -170,12 +170,6 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
c_backtrace(fp, mode);
}
-void dump_stack(void)
-{
- dump_backtrace(NULL, NULL);
-}
-EXPORT_SYMBOL(dump_stack);
-
void show_stack(struct task_struct *tsk, unsigned long *sp)
{
dump_backtrace(NULL, tsk);
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index dd1a7c391c9..deb6421c9e6 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -191,24 +191,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_stack_log_lvl(task, NULL, sp, bp, "");
}
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
- unsigned long bp;
- unsigned long stack;
-
- bp = stack_frame(current, NULL);
- printk("Pid: %d, comm: %.20s %s %s %.*s\n",
- current->pid, current->comm, print_tainted(),
- init_utsname()->release,
- (int)strcspn(init_utsname()->version, " "),
- init_utsname()->version);
- show_trace(NULL, NULL, &stack, bp);
-}
-EXPORT_SYMBOL(dump_stack);
-
static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
static int die_owner = -1;
static unsigned int die_nest_count;
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 923db5c1527..384b7c7c2f6 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -481,14 +481,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
show_trace(task, stack);
}
-void dump_stack(void)
-{
- show_stack(current, NULL);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
-
void show_code(unsigned int *pc)
{
long i;
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 4890fe62c01..7ce1f878cf6 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -145,6 +145,7 @@ extern void wake_up_klogd(void);
void log_buf_kexec_setup(void);
void __init setup_log_buf(int early);
+void dump_stack_print_info(const char *log_lvl);
#else
static inline __printf(1, 0)
int vprintk(const char *s, va_list args)
@@ -182,6 +183,10 @@ static inline void log_buf_kexec_setup(void)
static inline void setup_log_buf(int early)
{
}
+
+static inline void dump_stack_print_info(const char *log_lvl)
+{
+}
#endif
extern void dump_stack(void) __cold;
diff --git a/kernel/printk.c b/kernel/printk.c
index 376914e2869..70b4b94a0ec 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -43,6 +43,7 @@
#include <linux/rculist.h>
#include <linux/poll.h>
#include <linux/irq_work.h>
+#include <linux/utsname.h>
#include <asm/uaccess.h>
@@ -2849,4 +2850,21 @@ void kmsg_dump_rewind(struct kmsg_dumper *dumper)
raw_spin_unlock_irqrestore(&logbuf_lock, flags);
}
EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
+
+/**
+ * dump_stack_print_info - print generic debug info for dump_stack()
+ * @log_lvl: log level
+ *
+ * Arch-specific dump_stack() implementations can use this function to
+ * print out the same debug information as the generic dump_stack().
+ */
+void dump_stack_print_info(const char *log_lvl)
+{
+ printk("%sCPU: %d PID: %d Comm: %.20s %s %s %.*s\n",
+ log_lvl, raw_smp_processor_id(), current->pid, current->comm,
+ print_tainted(), init_utsname()->release,
+ (int)strcspn(init_utsname()->version, " "),
+ init_utsname()->version);
+}
+
#endif
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index 42f4f55c945..53bad099ebd 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -5,11 +5,16 @@
#include <linux/kernel.h>
#include <linux/export.h>
+#include <linux/sched.h>
+/**
+ * dump_stack - dump the current task information and its stack trace
+ *
+ * Architectures can override this implementation by implementing its own.
+ */
void dump_stack(void)
{
- printk(KERN_NOTICE
- "This architecture does not implement dump_stack()\n");
+ dump_stack_print_info(KERN_DEFAULT);
+ show_stack(NULL, NULL);
}
-
EXPORT_SYMBOL(dump_stack);