Hi,
I happen to find this code snippet in the kernel source :
**/*struct mm_struct *mm=current->mm**;**
**
/* some other code */
** if(mm){ /*<==Why is **this here? */**
** /*read the contents by locking*/**
** }
*/The/if /checks whether the mm_struct of the current process is NULL or
not. That means the mm_struct of a process can become NULL. How can that
happen?
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