Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-05 Thread 堀口　直也
On Mon, Aug 03, 2020 at 09:49:42PM -0400, Qian Cai wrote: > On Tue, Aug 04, 2020 at 01:16:45AM +, HORIGUCHI NAOYA(堀口 直也) wrote: > > On Mon, Aug 03, 2020 at 03:07:09PM -0400, Qian Cai wrote: > > > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > > > This patchset is t

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-05 Thread 堀口　直也
On Mon, Aug 03, 2020 at 11:19:09AM -0400, Qian Cai wrote: > On Mon, Aug 03, 2020 at 01:36:58PM +, HORIGUCHI NAOYA(堀口 直也) wrote: > > Hello, > > > > On Mon, Aug 03, 2020 at 08:39:55AM -0400, Qian Cai wrote: > > > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > > > Th

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-04 Thread osalvador
On 2020-08-04 03:49, Qian Cai wrote: Well, each iteration will mmap/munmap, so there should be no leaking. https://gitlab.com/cailca/linux-mm/-/blob/master/random.c#L376 It also seem to me madvise(MADV_SOFT_OFFLINE) does start to fragment memory somehow, because after this "madvise: Cannot al

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread Qian Cai
On Tue, Aug 04, 2020 at 01:16:45AM +, HORIGUCHI NAOYA(堀口 直也) wrote: > On Mon, Aug 03, 2020 at 03:07:09PM -0400, Qian Cai wrote: > > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > > This patchset is the latest version of soft offline rework patchset > > > targetted

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread 堀口　直也
On Mon, Aug 03, 2020 at 03:07:09PM -0400, Qian Cai wrote: > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > This patchset is the latest version of soft offline rework patchset > > targetted for v5.9. > > > > Main focus of this series is to stabilize soft offline. Hist

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread Qian Cai
On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > This patchset is the latest version of soft offline rework patchset > targetted for v5.9. > > Main focus of this series is to stabilize soft offline. Historically soft > offlined pages have suffered from racy conditions be

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread Qian Cai
On Mon, Aug 03, 2020 at 01:36:58PM +, HORIGUCHI NAOYA(堀口 直也) wrote: > Hello, > > On Mon, Aug 03, 2020 at 08:39:55AM -0400, Qian Cai wrote: > > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > > This patchset is the latest version of soft offline rework patchset > >

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread 堀口　直也
Hello, On Mon, Aug 03, 2020 at 08:39:55AM -0400, Qian Cai wrote: > On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > > This patchset is the latest version of soft offline rework patchset > > targetted for v5.9. > > > > Main focus of this series is to stabilize soft offlin

Re: [PATCH v5 00/16] HWPOISON: soft offline rework

2020-08-03 Thread Qian Cai
On Fri, Jul 31, 2020 at 12:20:56PM +, nao.horigu...@gmail.com wrote: > This patchset is the latest version of soft offline rework patchset > targetted for v5.9. > > Main focus of this series is to stabilize soft offline. Historically soft > offlined pages have suffered from racy conditions be

[PATCH v5 00/16] HWPOISON: soft offline rework

2020-07-31 Thread nao . horiguchi
This patchset is the latest version of soft offline rework patchset targetted for v5.9. Main focus of this series is to stabilize soft offline. Historically soft offlined pages have suffered from racy conditions because PageHWPoison is used to a little too aggressively, which (directly or indirec