Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-15 Thread Michal Hocko
On Thu 15-11-18 16:07:16, Andrew Morton wrote: > On Wed, 7 Nov 2018 11:18:30 +0100 Michal Hocko wrote: > > > From: Michal Hocko > > > > There is only very limited information printed when the memory offlining > > fails: > > [ 1984.506184] rac1 kernel: memory offlining [mem > >

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-15 Thread Michal Hocko
On Thu 15-11-18 16:07:16, Andrew Morton wrote: > On Wed, 7 Nov 2018 11:18:30 +0100 Michal Hocko wrote: > > > From: Michal Hocko > > > > There is only very limited information printed when the memory offlining > > fails: > > [ 1984.506184] rac1 kernel: memory offlining [mem > >

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-15 Thread Andrew Morton
On Wed, 7 Nov 2018 11:18:30 +0100 Michal Hocko wrote: > From: Michal Hocko > > There is only very limited information printed when the memory offlining > fails: > [ 1984.506184] rac1 kernel: memory offlining [mem > 0x826-0x8267fff] failed due to signal backoff > > This tells us

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-15 Thread Andrew Morton
On Wed, 7 Nov 2018 11:18:30 +0100 Michal Hocko wrote: > From: Michal Hocko > > There is only very limited information printed when the memory offlining > fails: > [ 1984.506184] rac1 kernel: memory offlining [mem > 0x826-0x8267fff] failed due to signal backoff > > This tells us

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-13 Thread Michal Hocko
Andrew, could you pick up this one as well please? Let me know if you prefer me to send the whole pile with all the fixes again. > diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c > index bf214beccda3..820397e18e59 100644 > --- a/mm/memory_hotplug.c > +++ b/mm/memory_hotplug.c > @@ -1411,9

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-13 Thread Michal Hocko
Andrew, could you pick up this one as well please? Let me know if you prefer me to send the whole pile with all the fixes again. > diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c > index bf214beccda3..820397e18e59 100644 > --- a/mm/memory_hotplug.c > +++ b/mm/memory_hotplug.c > @@ -1411,9

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-08 Thread Anshuman Khandual
On 11/08/2018 01:42 PM, Michal Hocko wrote: > On Thu 08-11-18 12:46:47, Anshuman Khandual wrote: >> >> >> On 11/07/2018 03:48 PM, Michal Hocko wrote: > [...] >>> @@ -1411,8 +1409,14 @@ do_migrate_range(unsigned long start_pfn, unsigned >>> long end_pfn) >>> /* Allocate a new page

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-08 Thread Anshuman Khandual
On 11/08/2018 01:42 PM, Michal Hocko wrote: > On Thu 08-11-18 12:46:47, Anshuman Khandual wrote: >> >> >> On 11/07/2018 03:48 PM, Michal Hocko wrote: > [...] >>> @@ -1411,8 +1409,14 @@ do_migrate_range(unsigned long start_pfn, unsigned >>> long end_pfn) >>> /* Allocate a new page

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-08 Thread Michal Hocko
On Thu 08-11-18 12:46:47, Anshuman Khandual wrote: > > > On 11/07/2018 03:48 PM, Michal Hocko wrote: [...] > > @@ -1411,8 +1409,14 @@ do_migrate_range(unsigned long start_pfn, unsigned > > long end_pfn) > > /* Allocate a new page from the nearest neighbor node */ > > ret

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-08 Thread Michal Hocko
On Thu 08-11-18 12:46:47, Anshuman Khandual wrote: > > > On 11/07/2018 03:48 PM, Michal Hocko wrote: [...] > > @@ -1411,8 +1409,14 @@ do_migrate_range(unsigned long start_pfn, unsigned > > long end_pfn) > > /* Allocate a new page from the nearest neighbor node */ > > ret

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-07 Thread Anshuman Khandual
On 11/07/2018 03:48 PM, Michal Hocko wrote: > From: Michal Hocko > > There is only very limited information printed when the memory offlining > fails: > [ 1984.506184] rac1 kernel: memory offlining [mem > 0x826-0x8267fff] failed due to signal backoff > > This tells us that the

Re: [RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-07 Thread Anshuman Khandual
On 11/07/2018 03:48 PM, Michal Hocko wrote: > From: Michal Hocko > > There is only very limited information printed when the memory offlining > fails: > [ 1984.506184] rac1 kernel: memory offlining [mem > 0x826-0x8267fff] failed due to signal backoff > > This tells us that the

[RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-07 Thread Michal Hocko
From: Michal Hocko There is only very limited information printed when the memory offlining fails: [ 1984.506184] rac1 kernel: memory offlining [mem 0x826-0x8267fff] failed due to signal backoff This tells us that the failure is triggered by the userspace intervention but it

[RFC PATCH 5/5] mm, memory_hotplug: be more verbose for memory offline failures

2018-11-07 Thread Michal Hocko
From: Michal Hocko There is only very limited information printed when the memory offlining fails: [ 1984.506184] rac1 kernel: memory offlining [mem 0x826-0x8267fff] failed due to signal backoff This tells us that the failure is triggered by the userspace intervention but it