Re: [PATCH][RFC v4] PM / Hibernate: Feed the wathdog when creating snapshot

2017-08-21 Thread Chen Yu
On Mon, Aug 21, 2017 at 02:36:40PM +0200, Rafael J. Wysocki wrote: > On Monday, August 21, 2017 9:48:17 AM CEST Chen Yu wrote: > > On Mon, Aug 21, 2017 at 08:47:09AM +0200, Michal Hocko wrote: > > > On Sat 19-08-17 18:21:26, Chen Yu wrote: > > > > There is a problem that when counting the pages for

Re: [PATCH][RFC v4] PM / Hibernate: Feed the wathdog when creating snapshot

2017-08-21 Thread Rafael J. Wysocki
On Monday, August 21, 2017 9:48:17 AM CEST Chen Yu wrote: > On Mon, Aug 21, 2017 at 08:47:09AM +0200, Michal Hocko wrote: > > On Sat 19-08-17 18:21:26, Chen Yu wrote: > > > There is a problem that when counting the pages for creating > > > the hibernation snapshot will take significant amount of >

Re: [PATCH][RFC v4] PM / Hibernate: Feed the wathdog when creating snapshot

2017-08-21 Thread Chen Yu
On Mon, Aug 21, 2017 at 08:47:09AM +0200, Michal Hocko wrote: > On Sat 19-08-17 18:21:26, Chen Yu wrote: > > There is a problem that when counting the pages for creating > > the hibernation snapshot will take significant amount of > > time, especially on system with large memory. Since the counting

Re: [PATCH][RFC v4] PM / Hibernate: Feed the wathdog when creating snapshot

2017-08-20 Thread Michal Hocko
On Sat 19-08-17 18:21:26, Chen Yu wrote: > There is a problem that when counting the pages for creating > the hibernation snapshot will take significant amount of > time, especially on system with large memory. Since the counting > job is performed with irq disabled, this might lead to NMI lockup.