#include <linux/module.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/sched.h>MODULE_LICENSE("Dual BSD/GPL");static int test_init(void)
{struct task_struct *task, *p;struct list_head *pos;int count=0;printk(KERN_ALERT "test module init\n");task=&init_task;list_for_each(pos, &task->tasks){p=list_entry(pos, struct task_struct, tasks);count++;printk(KERN_ALERT "%s[%d]\n", p->comm, p->pid);}printk(KERN_ALERT "Total %d tasks\n", count);return 0;
}static void test_exit(void)
{printk(KERN_ALERT "test module exit!\n");
}module_init(test_init);
module_exit(test_exit);

ifneq ($(KERNELRELEASE),)obj-m := test.o
elseKDIR := /lib/modules/$(shell uname -r)/buildPWD := $(shell pwd)default:$(MAKE) -C $(KDIR) M=$(PWD) modules
endif

//process_list.stp%{
#include <linux/list.h>
#include <linux/sched.h>
%}function process_list ()
%{  struct task_struct *p;struct list_head *_p,*_n;for_each_process(p){_stp_printf("%-15s (%-5d)\n",p->comm,p->pid);}
%}probe begin
{   process_list();exit()
}

# stap -g process_list.stp
init            (1    )
kthreadd        (2    )
migration/0     (3    )
ksoftirqd/0     (4    )
migration/0     (5    )
watchdog/0      (6    )
migration/1     (7    )
migration/1     (8    )
ksoftirqd/1     (9    )
watchdog/1      (10   )
events/0        (11   )
events/1        (12   )
cpuset          (13   )
khelper         (14   )
netns           (15   )
....

 //namespace_uts.stp%{#include<linux/list.h>#include<linux/sched.h>#include <linux/nsproxy.h>#include<linux/utsname.h>%}function process_list ()%{struct task_struct *p;struct list_head *_p,*_n;struct uts_namespace *uts;struct new_utsname *utsname;for_each_process(p){uts=p->nsproxy->uts_ns;utsname=&(uts->name);_stp_printf("%-15s(%-5d) %-24s %-16s\n", p->comm,p->pid,utsname->release, utsname->sysname);}%}probe begin{process_list();exit()}

# stap -g namespace_uts.stp
init           (1    ) 2.6.32-220.el6.x86_64    Linux
kthreadd       (2    ) 2.6.32-220.el6.x86_64    Linux
migration/0    (3    ) 2.6.32-220.el6.x86_64    Linux
ksoftirqd/0    (4    ) 2.6.32-220.el6.x86_64    Linux
migration/0    (5    ) 2.6.32-220.el6.x86_64    Linux
watchdog/0     (6    ) 2.6.32-220.el6.x86_64    Linux
migration/1    (7    ) 2.6.32-220.el6.x86_64    Linux
migration/1    (8    ) 2.6.32-220.el6.x86_64    Linux
....