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Groups > linux.kernel > #1327624
| From | Ard Biesheuvel <ard.biesheuvel@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCHv3 3/3] arm64: ptdump: Indicate whether memory should be faulting |
| Date | 2016-02-05 13:10 +0100 |
| Message-ID | <qYNn4-8os-13@gated-at.bofh.it> (permalink) |
| References | <qYy4G-6oS-23@gated-at.bofh.it> <qYy4G-6oS-21@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 4 February 2016 at 20:43, Laura Abbott <labbott@fedoraproject.org> wrote:
>
> With CONFIG_DEBUG_PAGEALLOC, pages do not have the valid bit
> set when free in the buddy allocator. Add an indiciation to
> the page table dumping code that the valid bit is not set,
> 'F' for fault, to make this easier to understand.
>
> Signed-off-by: Laura Abbott <labbott@fedoraproject.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
> arch/arm64/mm/dump.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
> index 5a22a11..f381ac9 100644
> --- a/arch/arm64/mm/dump.c
> +++ b/arch/arm64/mm/dump.c
> @@ -90,6 +90,11 @@ struct prot_bits {
>
> static const struct prot_bits pte_bits[] = {
> {
> + .mask = PTE_VALID,
> + .val = PTE_VALID,
> + .set = " ",
> + .clear = "F",
> + }, {
> .mask = PTE_USER,
> .val = PTE_USER,
> .set = "USR",
> --
> 2.5.0
>
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[PATCHv3 3/3] arm64: ptdump: Indicate whether memory should be faulting Laura Abbott <labbott@fedoraproject.org> - 2016-02-04 20:50 +0100 Re: [PATCHv3 3/3] arm64: ptdump: Indicate whether memory should be faulting Ard Biesheuvel <ard.biesheuvel@linaro.org> - 2016-02-05 13:10 +0100 Re: [PATCHv3 3/3] arm64: ptdump: Indicate whether memory should be faulting Mark Rutland <mark.rutland@arm.com> - 2016-02-05 15:40 +0100
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