After using the GFP_ATOMIC flag in kmalloc it's not showing the stack trace. But is it good to use this mechanism (on long term basis) for sending signals (in every 1mSec) to a server process running in user-space.
I am not using kfree() for the task_struct *p variable because find_task_by_pid() returns a pointer to the PCB, so if i'll free the pointer then it frees that memory block and i am getting a segmentation fault.
Please correct me if i am wrong.
regards
Ganesh
On 2/16/07, Tetsuo Handa <
penguin-newbie@xxxxxxxxxxxxxxxxxxx> wrote:
Ganesh PS wrote:
> void gen_sig(void){
> struct task_struct *p=NULL;
> p=kmalloc(sizeof(struct task_struct), GFP_KERNEL);
>
> p = find_task_by_pid(pid); /*Received from a user program through ioctl()*/
What is this kmalloc() for?
You don't kfree() this pointer?
