hangcheck-timer.c File Reference

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <linux/sysrq.h>
#include <linux/timer.h>
#include <linux/time.h>

Go to the source code of this file.

Macros
#define	VERSION_STR   "0.9.1"
#define	DEFAULT_IOFENCE_MARGIN   60 /* Default fudge factor, in seconds */
#define	DEFAULT_IOFENCE_TICK   180 /* Default timer timeout, in seconds */
#define	TIMER_FREQ   1000000000ULL

Functions
	module_param (hangcheck_tick, int, 0)
	MODULE_PARM_DESC (hangcheck_tick,"Timer delay.")
	module_param (hangcheck_margin, int, 0)
	MODULE_PARM_DESC (hangcheck_margin,"If the hangcheck timer has been delayed more than hangcheck_margin seconds, the driver will fire.")
	module_param (hangcheck_reboot, int, 0)
	MODULE_PARM_DESC (hangcheck_reboot,"If nonzero, the machine will reboot when the timer margin is exceeded.")
	module_param (hangcheck_dump_tasks, int, 0)
	MODULE_PARM_DESC (hangcheck_dump_tasks,"If nonzero, the machine will dump the system task state when the timer margin is exceeded.")
	MODULE_AUTHOR ("Oracle")
	MODULE_DESCRIPTION ("Hangcheck-timer detects when the system has gone out to lunch past a certain margin.")
	MODULE_LICENSE ("GPL")
	MODULE_VERSION (VERSION_STR)
	__setup ("hcheck_tick", hangcheck_parse_tick)
	__setup ("hcheck_margin", hangcheck_parse_margin)
	__setup ("hcheck_reboot", hangcheck_parse_reboot)
	__setup ("hcheck_dump_tasks", hangcheck_parse_dump_tasks)
	module_init (hangcheck_init)
	module_exit (hangcheck_exit)

Macro Definition Documentation

#define DEFAULT_IOFENCE_MARGIN   60 /* Default fudge factor, in seconds */

Definition at line 56 of file hangcheck-timer.c.

#define DEFAULT_IOFENCE_TICK   180 /* Default timer timeout, in seconds */

Definition at line 57 of file hangcheck-timer.c.

#define TIMER_FREQ   1000000000ULL

Definition at line 124 of file hangcheck-timer.c.

#define VERSION_STR   "0.9.1"

Definition at line 54 of file hangcheck-timer.c.

Function Documentation

__setup	(	"hcheck_tick"	,
		hangcheck_parse_tick
	)

__setup	(	"hcheck_margin"	,
		hangcheck_parse_margin
	)

__setup	(	"hcheck_reboot"	,
		hangcheck_parse_reboot
	)

__setup	(	"hcheck_dump_tasks"	,
		hangcheck_parse_dump_tasks
	)

MODULE_AUTHOR

(

"Oracle"

)

MODULE_DESCRIPTION

(

"Hangcheck-timer detects when the system has gone out to lunch past a certain margin."

)

module_exit

(

hangcheck_exit

)

module_init

(

hangcheck_init

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	hangcheck_tick	,
		int	,
		0
	)

module_param	(	hangcheck_margin	,
		int	,
		0
	)

module_param	(	hangcheck_reboot	,
		int	,
		0
	)

module_param	(	hangcheck_dump_tasks	,
		int	,
		0
	)

MODULE_PARM_DESC	(	hangcheck_tick	,
		"Timer delay."
	)

MODULE_PARM_DESC	(	hangcheck_margin	,
		"If the hangcheck timer has been delayed more than hangcheck_margin	seconds,
		the driver will fire."
	)

MODULE_PARM_DESC	(	hangcheck_reboot	,
		"If	nonzero,
		the machine will reboot when the timer margin is exceeded."
	)

MODULE_PARM_DESC	(	hangcheck_dump_tasks	,
		"If	nonzero,
		the machine will dump the system task state when the timer margin is exceeded."
	)

MODULE_VERSION

(

VERSION_STR

)