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SubjectRe: [PATCH 3/3] 2.6.8-rc4-mm1 - UML fixes
On Thu, Aug 12, 2004 at 12:15:32AM -0400, Jeff Dike wrote:
> The patch below fixes a few UML-specific bugs not related to the rest of the
> kernel
> a bogus error return and some formatting in the fork code
> correct calculation of task.thread.kernel_stack
> remove a bogus panic
> a couple of fixes to allow UML to boot in the presence of exec-shield
[...]
> p->thread.kernel_stack =
> - (unsigned long) p->thread_info + THREAD_SIZE;
> + (unsigned long) p->thread_info + 2 * PAGE_SIZE;
> return(CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr,
> clone_flags, sp, stack_top, p, regs));

Out of curiosity, why are you allocating 4*PAGE_SIZE for the stack if
you're only going to use 2*PAGE_SIZE of it? I saw no other users for
the rest of ->thread_info offhand.


-- wli
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