> How do you end up with Device nGnRnE in user space? I thought we should
> have got some guard page.
I guess it is a device file that is mmaped in the user space and later remapped
in the kernel
using pgprot_noncached().
I can't find the code that inserts a guard page in between vma's can
> How do you end up with Device nGnRnE in user space? I thought we should
> have got some guard page.
I guess it is a device file that is mmaped in the user space and later remapped
in the kernel
using pgprot_noncached().
I can't find the code that inserts a guard page in between vma's can
> How do you end up with Device nGnRnE in user space? I thought we should
> have got some guard page.
I guess it is a device file that is mmaped in the user space and later remapped
in the kernel
using pgprot_noncached().
I can't find the code that inserts a guard page in between vma's can you
> How do you end up with Device nGnRnE in user space? I thought we should
> have got some guard page.
I guess it is a device file that is mmaped in the user space and later remapped
in the kernel
using pgprot_noncached().
I can't find the code that inserts a guard page in between vma's can you
On Mon, Feb 15, 2016 at 08:58:32AM +, EunTaik Lee wrote:
> Userspace memory is mapped as below:
> F2A7F000--F2A7 Normal Memory
> F2A8--F2A80FFF Device nGnRnE
How do you end up with Device nGnRnE in user space? I thought we should
have got some guard page.
> And that userspace
On Mon, Feb 15, 2016 at 08:58:32AM +, EunTaik Lee wrote:
> Userspace memory is mapped as below:
> F2A7F000--F2A7 Normal Memory
> F2A8--F2A80FFF Device nGnRnE
How do you end up with Device nGnRnE in user space? I thought we should
have got some guard page.
> And that userspace
Userspace memory is mapped as below:
F2A7F000--F2A7 Normal Memory
F2A8--F2A80FFF Device nGnRnE
And that userspace application makes a system call
as below:
-009 |do_strncpy_from_user(inline)
-009 |strncpy_from_user()
-010 |getname_flags()
-011 |user_path_at_empty()
-012 |user_path_at()
Userspace memory is mapped as below:
F2A7F000--F2A7 Normal Memory
F2A8--F2A80FFF Device nGnRnE
And that userspace application makes a system call
as below:
-009 |do_strncpy_from_user(inline)
-009 |strncpy_from_user()
-010 |getname_flags()
-011 |user_path_at_empty()
-012 |user_path_at()
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