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SubjectRe: [PATCH 2/8] kernel/fork: Duplicate task_struct before stack allocation.
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On 1/25/22 07:26, Sebastian Andrzej Siewior wrote:
> alloc_thread_stack_node() already populates the task_struct::stack
> member except on IA64. The stack pointer is saved and populated again
> because IA64 needs it and arch_dup_task_struct() overwrites it.

I understand the problem, I think.

>
> Allocate thread's stack after task_struct has been duplicated as a
> preparation.
>

But I don't understand this. How does this patch relate to the problem?

Also, you appear to be missing a change to the free_stack and free_tsk
code at the end of dup_task_struct().

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