Re: [PATCH 1/2] fs/dax: deposit pagetable even when installing zero page

2019-02-28 Thread Aneesh Kumar K.V
On 2/28/19 2:51 PM, Jan Kara wrote: On Thu 28-02-19 14:05:21, Aneesh Kumar K.V wrote: Architectures like ppc64 use the deposited page table to store hardware page table slot information. Make sure we deposit a page table when using zero page at the pmd level for hash. Without this we hit

Re: [PATCH 1/2] fs/dax: deposit pagetable even when installing zero page

2019-02-28 Thread Jan Kara
On Thu 28-02-19 14:05:21, Aneesh Kumar K.V wrote: > Architectures like ppc64 use the deposited page table to store hardware > page table slot information. Make sure we deposit a page table when > using zero page at the pmd level for hash. > > Without this we hit > > Unable to handle kernel

[PATCH 1/2] fs/dax: deposit pagetable even when installing zero page

2019-02-28 Thread Aneesh Kumar K.V
Architectures like ppc64 use the deposited page table to store hardware page table slot information. Make sure we deposit a page table when using zero page at the pmd level for hash. Without this we hit Unable to handle kernel paging request for data at address 0x Faulting instruction