Commit 88ad0bf6 authored by Ingo Molnar's avatar Ingo Molnar Committed by Linus Torvalds
Browse files

[PATCH] Add SysRq-Q to print timer_list debug info



Add SysRq-Q to print pending timers and other timer info.
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 289f480a
......@@ -36,6 +36,7 @@
#include <linux/workqueue.h>
#include <linux/kexec.h>
#include <linux/irq.h>
#include <linux/hrtimer.h>
#include <asm/ptrace.h>
#include <asm/irq_regs.h>
......@@ -158,6 +159,17 @@ static struct sysrq_key_op sysrq_sync_op = {
.enable_mask = SYSRQ_ENABLE_SYNC,
};
static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
{
sysrq_timer_list_show();
}
static struct sysrq_key_op sysrq_show_timers_op = {
.handler = sysrq_handle_show_timers,
.help_msg = "show-all-timers(Q)",
.action_msg = "Show Pending Timers",
};
static void sysrq_handle_mountro(int key, struct tty_struct *tty)
{
emergency_remount();
......@@ -335,7 +347,7 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
/* o: This will often be registered as 'Off' at init time */
NULL, /* o */
&sysrq_showregs_op, /* p */
NULL, /* q */
&sysrq_show_timers_op, /* q */
&sysrq_unraw_op, /* r */
&sysrq_sync_op, /* s */
&sysrq_showstate_op, /* t */
......
......@@ -316,6 +316,9 @@ extern unsigned long ktime_divns(const ktime_t kt, s64 div);
# define ktime_divns(kt, div) (unsigned long)((kt).tv64 / (div))
#endif
/* Show pending timers: */
extern void sysrq_timer_list_show(void);
/*
* Timer-statistics info:
*/
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment