[patch 22/47] Print kernel version in dump_stack() and show_regs().

Martin Schwidefsky
2007-12-20T15:40:58Z

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From: Heiko Carstens <heiko.carstens@de.ibm.com>

Also print PREEMPT and/or SMP if the kernel was configured that way.
Makes s390 look a bit more like other architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

arch/s390/kernel/process.c | 18 ++++++++++--------
arch/s390/kernel/traps.c | 20 +++++++++++++++++---
2 files changed, 27 insertions(+), 11 deletions(-)

Index: quilt-2.6/arch/s390/kernel/process.c
===================================================================
--- quilt-2.6.orig/arch/s390/kernel/process.c
+++ quilt-2.6/arch/s390/kernel/process.c
@@ -36,7 +36,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/notifier.h>
-
+#include <linux/utsname.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -182,13 +182,15 @@ void cpu_idle(void)

void show_regs(struct pt_regs *regs)
{
- struct task_struct *tsk = current;
-
- printk("CPU: %d %s\n", task_thread_info(tsk)->cpu, print_tainted());
- printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
- current->comm, task_pid_nr(current), (void *) tsk,
- (void *) tsk->thread.ksp);
-
+ print_modules();
+ 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_registers(regs);
/* Show stack backtrace if pt_regs is from kernel mode */
if (!(regs->psw.mask & PSW_MASK_PSTATE))
Index: quilt-2.6/arch/s390/kernel/traps.c
===================================================================
--- quilt-2.6.orig/arch/s390/kernel/traps.c
+++ quilt-2.6/arch/s390/kernel/traps.c
@@ -31,6 +31,7 @@
#include <linux/reboot.h>
#include <linux/kprobes.h>
#include <linux/bug.h>
+#include <linux/utsname.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -168,9 +169,16 @@ void show_stack(struct task_struct *task
*/
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)
@@ -258,8 +266,14 @@ void die(const char * str, struct pt_reg
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
- printk("%s: %04lx [#%d]\n", str, err & 0xffff, ++die_counter);
- print_modules();
+ printk("%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+#ifdef CONFIG_PREEMPT
+ printk("PREEMPT ");
+#endif
+#ifdef CONFIG_SMP
+ printk("SMP");
+#endif
+ printk("\n");
notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
show_regs(regs);
bust_spinlocks(0);