Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-26 Thread Michal Hocko
On Tue 26-02-19 15:12:40, Robin Murphy wrote: [...] > The back of my mind is still ticking over trying to think up a really nice > design for a self-contained debugfs or module-parameter interface completely > independent of ARCH_MEMORY_PROBE - I'll probably keep using this hack > locally to

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-26 Thread Robin Murphy
On 25/02/2019 21:14, David Hildenbrand wrote: On 12.02.19 16:11, Michal Hocko wrote: On Tue 12-02-19 14:54:36, Robin Murphy wrote: On 12/02/2019 08:33, Michal Hocko wrote: On Mon 11-02-19 17:50:46, Robin Murphy wrote: ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, but

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-25 Thread David Hildenbrand
On 12.02.19 16:11, Michal Hocko wrote: > On Tue 12-02-19 14:54:36, Robin Murphy wrote: >> On 12/02/2019 08:33, Michal Hocko wrote: >>> On Mon 11-02-19 17:50:46, Robin Murphy wrote: ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, but being able to exercise the

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-12 Thread Michal Hocko
On Tue 12-02-19 14:54:36, Robin Murphy wrote: > On 12/02/2019 08:33, Michal Hocko wrote: > > On Mon 11-02-19 17:50:46, Robin Murphy wrote: > > > ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, > > > but being able to exercise the (arguably trickier) hot-remove path would > >

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-12 Thread Robin Murphy
On 12/02/2019 08:33, Michal Hocko wrote: On Mon 11-02-19 17:50:46, Robin Murphy wrote: ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, but being able to exercise the (arguably trickier) hot-remove path would be even more useful. Extend the feature to allow removal of

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-12 Thread Michal Hocko
On Mon 11-02-19 17:50:46, Robin Murphy wrote: > ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, > but being able to exercise the (arguably trickier) hot-remove path would > be even more useful. Extend the feature to allow removal of offline > sections to be triggered

Re: [PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-11 Thread Anshuman Khandual
On 02/11/2019 11:20 PM, Robin Murphy wrote: > ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, > but being able to exercise the (arguably trickier) hot-remove path would > be even more useful. Extend the feature to allow removal of offline > sections to be triggered

[PATCH v2] mm/memory-hotplug: Add sysfs hot-remove trigger

2019-02-11 Thread Robin Murphy
ARCH_MEMORY_PROBE is a useful thing for testing and debugging hotplug, but being able to exercise the (arguably trickier) hot-remove path would be even more useful. Extend the feature to allow removal of offline sections to be triggered manually to aid development. Since process dictates the new