Re: [Xen-devel] [PATCH v3 for-4.10 1/2] x86/mm: fix potential race conditions in map_pages_to_xen().

On 11/14/2017 8:32 PM, Julien Grall wrote: Hi, On 14/11/17 08:20, Jan Beulich wrote: On 14.11.17 at 07:53, wrote: From: Min He In map_pages_to_xen(), a L2 page table entry may be reset to point to a superpage, and its corresponding L1 page

Re: [Xen-devel] [PATCH v3 for-4.10 1/2] x86/mm: fix potential race conditions in map_pages_to_xen().

Hi, On 14/11/17 08:20, Jan Beulich wrote: On 14.11.17 at 07:53, wrote: From: Min He In map_pages_to_xen(), a L2 page table entry may be reset to point to a superpage, and its corresponding L1 page table need be freed in such scenario, when these

Re: [Xen-devel] [PATCH v3 for-4.10 1/2] x86/mm: fix potential race conditions in map_pages_to_xen().

>>> On 14.11.17 at 07:53, wrote: > From: Min He > > In map_pages_to_xen(), a L2 page table entry may be reset to point to > a superpage, and its corresponding L1 page table need be freed in such > scenario, when these L1 page table entries are

[Xen-devel] [PATCH v3 for-4.10 1/2] x86/mm: fix potential race conditions in map_pages_to_xen().

From: Min He In map_pages_to_xen(), a L2 page table entry may be reset to point to a superpage, and its corresponding L1 page table need be freed in such scenario, when these L1 page table entries are mapping to consecutive page frames and having the same mapping flags.