Re: [PATCH v3 0/3] Fix CONT-PTE/PMD size hugetlb issue when unmapping or migrating

On 5/10/2022 12:04 PM, Andrew Morton wrote: On Tue, 10 May 2022 11:45:57 +0800 Baolin Wang wrote: Hi, Now migrating a hugetlb page or unmapping a poisoned hugetlb page, we'll use ptep_clear_flush() and set_pte_at() to nuke the page table entry and remap it, and this is incorrect for

Re: [PATCH v3 0/3] Fix CONT-PTE/PMD size hugetlb issue when unmapping or migrating

On Tue, 10 May 2022 11:45:57 +0800 Baolin Wang wrote: > Hi, > > Now migrating a hugetlb page or unmapping a poisoned hugetlb page, we'll > use ptep_clear_flush() and set_pte_at() to nuke the page table entry > and remap it, and this is incorrect for CONT-PTE or CONT-PMD size hugetlb > page,

[PATCH v3 0/3] Fix CONT-PTE/PMD size hugetlb issue when unmapping or migrating

Hi, Now migrating a hugetlb page or unmapping a poisoned hugetlb page, we'll use ptep_clear_flush() and set_pte_at() to nuke the page table entry and remap it, and this is incorrect for CONT-PTE or CONT-PMD size hugetlb page, which will cause potential data consistent issue. This patch set will