Re: [PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-28 Thread zhong jiang
On 2019/3/1 15:29, Naoya Horiguchi wrote: > On Tue, Feb 26, 2019 at 10:34:32PM +0800, zhong jiang wrote: >> On 2019/2/26 21:51, Kirill A. Shutemov wrote: >>> On Tue, Feb 26, 2019 at 07:18:00PM +0800, zhong jiang wrote: From: zhongjiang When soft_offline_in_use_page() runs on a thp

Re: [PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-28 Thread Naoya Horiguchi
On Tue, Feb 26, 2019 at 10:34:32PM +0800, zhong jiang wrote: > On 2019/2/26 21:51, Kirill A. Shutemov wrote: > > On Tue, Feb 26, 2019 at 07:18:00PM +0800, zhong jiang wrote: > >> From: zhongjiang > >> > >> When soft_offline_in_use_page() runs on a thp tail page after pmd is plit, > >

Re: [PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-26 Thread zhong jiang
On 2019/2/26 21:51, Kirill A. Shutemov wrote: > On Tue, Feb 26, 2019 at 07:18:00PM +0800, zhong jiang wrote: >> From: zhongjiang >> >> When soft_offline_in_use_page() runs on a thp tail page after pmd is plit, > s/plit/split/ > >> we trigger the following VM_BUG_ON_PAGE(): >> >> Memory failure:

Re: [PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-26 Thread Kirill A. Shutemov
On Tue, Feb 26, 2019 at 07:18:00PM +0800, zhong jiang wrote: > From: zhongjiang > > When soft_offline_in_use_page() runs on a thp tail page after pmd is plit, s/plit/split/ > we trigger the following VM_BUG_ON_PAGE(): > > Memory failure: 0x3755ff: non anonymous thp > __get_any_page: 0x3755ff:

Re: [PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-26 Thread Michal Hocko
[Cc Kirril for the THP side] On Tue 26-02-19 19:18:00, zhong jiang wrote: > From: zhongjiang > > When soft_offline_in_use_page() runs on a thp tail page after pmd is plit, > we trigger the following VM_BUG_ON_PAGE(): > > Memory failure: 0x3755ff: non anonymous thp > __get_any_page: 0x3755ff:

[PATCH] mm: hwpoison: fix thp split handing in soft_offline_in_use_page()

2019-02-26 Thread zhong jiang
From: zhongjiang When soft_offline_in_use_page() runs on a thp tail page after pmd is plit, we trigger the following VM_BUG_ON_PAGE(): Memory failure: 0x3755ff: non anonymous thp __get_any_page: 0x3755ff: unknown zero refcount page type 2f8000 Soft offlining pfn 0x34d805 at process