mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
|
/*
|
||
|
|
* Simple stack backtrace regression test module
|
||
|
|
*
|
||
|
|
* (C) Copyright 2008 Intel Corporation
|
||
|
|
* Author: Arjan van de Ven <arjan@linux.intel.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; version 2
|
||
|
|
* of the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <linux/delay.h>
|
||
|
|
|
||
|
|
static struct timer_list backtrace_timer;
|
||
|
|
|
||
|
|
static void backtrace_test_timer(unsigned long data)
|
||
|
|
{
|
||
|
|
printk("Testing a backtrace from irq context.\n");
|
||
|
|
printk("The following trace is a kernel self test and not a bug!\n");
|
||
|
|
dump_stack();
|
||
|
|
}
|
||
|
|
static int backtrace_regression_test(void)
|
||
|
|
{
|
||
|
|
printk("====[ backtrace testing ]===========\n");
|
||
|
|
printk("Testing a backtrace from process context.\n");
|
||
|
|
printk("The following trace is a kernel self test and not a bug!\n");
|
||
|
|
dump_stack();
|
||
|
|
|
||
|
|
init_timer(&backtrace_timer);
|
||
|
|
backtrace_timer.function = backtrace_test_timer;
|
||
|
|
mod_timer(&backtrace_timer, jiffies + 10);
|
||
|
|
|
||
|
|
msleep(10);
|
||
|
|
printk("====[ end of backtrace testing ]====\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void exitf(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(backtrace_regression_test);
|
||
|
|
module_exit(exitf);
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
MODULE_AUTHOR("Arjan van de Ven <arjan@linux.intel.com>");
|