On Fri 06-11-20 17:08:57, Feng Tang wrote:
[...]
> You are right, there are quiet several types of page allocations failures.
> The callstack in patch 2/2 is a GFP_HIGHUSER from pipe_write, and there
> are more types of kernel allocation requests which will got blocked by
> the differnt check. My
On Fri, Nov 06, 2020 at 09:10:26AM +0100, Michal Hocko wrote:
> > > > The incomming parameter nodemask is NULL, and the function will first
> > > > try the
> > > > cpuset nodemask (1 here), and the zoneidx is only granted 2, which
> > > > makes the
> > > > 'ac's preferred zone to be NULL. so it g
On Fri 06-11-20 15:06:56, Feng Tang wrote:
> On Thu, Nov 05, 2020 at 05:16:12PM +0100, Michal Hocko wrote:
> > On Thu 05-11-20 21:43:05, Feng Tang wrote:
> > > On Thu, Nov 05, 2020 at 02:12:45PM +0100, Michal Hocko wrote:
> > > > On Thu 05-11-20 21:07:10, Feng Tang wrote:
> > > > [...]
> > > > > My
On Fri 06-11-20 12:32:44, Huang, Ying wrote:
> Michal Hocko writes:
>
> > On Thu 05-11-20 09:40:28, Feng Tang wrote:
> >> On Wed, Nov 04, 2020 at 09:53:43AM +0100, Michal Hocko wrote:
> >>
> >> > > > As I've said in reply to your second patch. I think we can make the
> >> > > > oom
> >> > > >
On Thu, Nov 05, 2020 at 05:16:12PM +0100, Michal Hocko wrote:
> On Thu 05-11-20 21:43:05, Feng Tang wrote:
> > On Thu, Nov 05, 2020 at 02:12:45PM +0100, Michal Hocko wrote:
> > > On Thu 05-11-20 21:07:10, Feng Tang wrote:
> > > [...]
> > > > My debug traces shows it is, and its gfp_mask is 'GFP_KER
Michal Hocko writes:
> On Thu 05-11-20 09:40:28, Feng Tang wrote:
>> On Wed, Nov 04, 2020 at 09:53:43AM +0100, Michal Hocko wrote:
>>
>> > > > As I've said in reply to your second patch. I think we can make the oom
>> > > > killer behavior more sensible in this misconfigured cases but I do not
On Thu 05-11-20 21:43:05, Feng Tang wrote:
> On Thu, Nov 05, 2020 at 02:12:45PM +0100, Michal Hocko wrote:
> > On Thu 05-11-20 21:07:10, Feng Tang wrote:
> > [...]
> > > My debug traces shows it is, and its gfp_mask is 'GFP_KERNEL'
> >
> > Can you provide the full information please? Which node ha
On Thu, Nov 05, 2020 at 02:12:45PM +0100, Michal Hocko wrote:
> On Thu 05-11-20 21:07:10, Feng Tang wrote:
> [...]
> > My debug traces shows it is, and its gfp_mask is 'GFP_KERNEL'
>
> Can you provide the full information please? Which node has been
> requested. Which cpuset the calling process ru
On 11/5/20 2:19 PM, Michal Hocko wrote:
On Thu 05-11-20 14:14:25, Vlastimil Babka wrote:
On 11/5/20 1:58 PM, Michal Hocko wrote:
> On Thu 05-11-20 13:53:24, Vlastimil Babka wrote:
> > On 11/5/20 1:08 PM, Michal Hocko wrote:
> > > On Thu 05-11-20 09:40:28, Feng Tang wrote:
> > > > > > Could you b
On Thu 05-11-20 14:14:25, Vlastimil Babka wrote:
> On 11/5/20 1:58 PM, Michal Hocko wrote:
> > On Thu 05-11-20 13:53:24, Vlastimil Babka wrote:
> > > On 11/5/20 1:08 PM, Michal Hocko wrote:
> > > > On Thu 05-11-20 09:40:28, Feng Tang wrote:
> > > > > > > Could you be more specific? This sounds like
On 11/5/20 1:58 PM, Michal Hocko wrote:
On Thu 05-11-20 13:53:24, Vlastimil Babka wrote:
On 11/5/20 1:08 PM, Michal Hocko wrote:
> On Thu 05-11-20 09:40:28, Feng Tang wrote:
> > > > Could you be more specific? This sounds like a bug. Allocations
> > > shouldn't spill over to a node which is not
On Thu 05-11-20 21:07:10, Feng Tang wrote:
[...]
> My debug traces shows it is, and its gfp_mask is 'GFP_KERNEL'
Can you provide the full information please? Which node has been
requested. Which cpuset the calling process run in and which node has
the allocation succeeded from? A bare dump_stack w
On Thu, Nov 05, 2020 at 01:58:28PM +0100, Michal Hocko wrote:
> On Thu 05-11-20 13:53:24, Vlastimil Babka wrote:
> > On 11/5/20 1:08 PM, Michal Hocko wrote:
> > > On Thu 05-11-20 09:40:28, Feng Tang wrote:
> > > > > > Could you be more specific? This sounds like a bug. Allocations
> > > > > shouldn
On Thu 05-11-20 13:53:24, Vlastimil Babka wrote:
> On 11/5/20 1:08 PM, Michal Hocko wrote:
> > On Thu 05-11-20 09:40:28, Feng Tang wrote:
> > > > > Could you be more specific? This sounds like a bug. Allocations
> > > > shouldn't spill over to a node which is not in the cpuset. There are few
> > >
On 11/5/20 1:08 PM, Michal Hocko wrote:
On Thu 05-11-20 09:40:28, Feng Tang wrote:
>
> Could you be more specific? This sounds like a bug. Allocations
> shouldn't spill over to a node which is not in the cpuset. There are few
> exceptions like IRQ context but that shouldn't happen regurarly.
I
On Thu 05-11-20 09:40:28, Feng Tang wrote:
> On Wed, Nov 04, 2020 at 09:53:43AM +0100, Michal Hocko wrote:
>
> > > > As I've said in reply to your second patch. I think we can make the oom
> > > > killer behavior more sensible in this misconfigured cases but I do not
> > > > think we want break t
On Wed, Nov 04, 2020 at 09:53:43AM +0100, Michal Hocko wrote:
> > > As I've said in reply to your second patch. I think we can make the oom
> > > killer behavior more sensible in this misconfigured cases but I do not
> > > think we want break the cpuset isolation for such a configuration.
> >
>
On Wed 04-11-20 16:40:21, Feng Tang wrote:
> On Wed, Nov 04, 2020 at 08:58:19AM +0100, Michal Hocko wrote:
> > On Wed 04-11-20 15:38:26, Feng Tang wrote:
> > [...]
> > > > Could you be more specific about the usecase here? Why do you need a
> > > > binding to a pure movable node?
> > >
> > > One
On Wed, Nov 04, 2020 at 08:58:19AM +0100, Michal Hocko wrote:
> On Wed 04-11-20 15:38:26, Feng Tang wrote:
> [...]
> > > Could you be more specific about the usecase here? Why do you need a
> > > binding to a pure movable node?
> >
> > One common configuration for a platform is small size of DRAM
On Wed 04-11-20 15:38:26, Feng Tang wrote:
[...]
> > Could you be more specific about the usecase here? Why do you need a
> > binding to a pure movable node?
>
> One common configuration for a platform is small size of DRAM plus huge
> size of PMEM (which is slower but cheaper), and my guess of t
Hi Michal,
Thanks for the prompt review!
On Wed, Nov 04, 2020 at 08:13:08AM +0100, Michal Hocko wrote:
> On Wed 04-11-20 14:10:08, Feng Tang wrote:
> > Hi,
> >
> > This patchset tries to report a problem and get suggestion/review
> > for the RFC fix patches.
> >
> > We recently got a OOM report
On Wed 04-11-20 14:10:08, Feng Tang wrote:
> Hi,
>
> This patchset tries to report a problem and get suggestion/review
> for the RFC fix patches.
>
> We recently got a OOM report, that when user try to bind a docker(container)
> instance to a memory node which only has movable zones, and OOM kill
Hi,
This patchset tries to report a problem and get suggestion/review
for the RFC fix patches.
We recently got a OOM report, that when user try to bind a docker(container)
instance to a memory node which only has movable zones, and OOM killing
still can't solve the page allocation failure.
The c
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