Re: How to create some threads running tha same function

On 2011-09-15 22:20:03 (+0800), Parmenides <mobile.parmenides@gmail.com> wrote:

I will try to test how to create kernel threads and have write a kernel module which creates a number of kernel threads running the same function. But the results is somewhat confusing.

static int kthread_init(void) { int i;

for (i = 0; i < MAX_KTHREAD; i++){ ktask[i] = kthread_run(my_kthread, &i, "mythread[%d]", i); } return 0; }

You're passing the address of a stack variable (i) as data pointer. That's not right, because as soon as you exit the kthread_init function the data may be overwritten. The fact that it works in some cases is pure coincidence. Regards, Kristof