On Wed 05-09-18 08:32:05, Alexander Duyck wrote:
> On Tue, Sep 4, 2018 at 11:10 PM Michal Hocko wrote:
> >
> > On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> > > From: Alexander Duyck
> > >
> > > On systems with a large amount of memory it can take a significant amount
> > > of time to
On Wed 05-09-18 08:32:05, Alexander Duyck wrote:
> On Tue, Sep 4, 2018 at 11:10 PM Michal Hocko wrote:
> >
> > On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> > > From: Alexander Duyck
> > >
> > > On systems with a large amount of memory it can take a significant amount
> > > of time to
On Tue, Sep 4, 2018 at 11:10 PM Michal Hocko wrote:
>
> On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> > From: Alexander Duyck
> >
> > On systems with a large amount of memory it can take a significant amount
> > of time to initialize all of the page structs with the PAGE_POISON_PATTERN
> >
On Tue, Sep 4, 2018 at 11:10 PM Michal Hocko wrote:
>
> On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> > From: Alexander Duyck
> >
> > On systems with a large amount of memory it can take a significant amount
> > of time to initialize all of the page structs with the PAGE_POISON_PATTERN
> >
On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> From: Alexander Duyck
>
> On systems with a large amount of memory it can take a significant amount
> of time to initialize all of the page structs with the PAGE_POISON_PATTERN
> value. I have seen it take over 2 minutes to initialize a system
On Tue 04-09-18 11:33:39, Alexander Duyck wrote:
> From: Alexander Duyck
>
> On systems with a large amount of memory it can take a significant amount
> of time to initialize all of the page structs with the PAGE_POISON_PATTERN
> value. I have seen it take over 2 minutes to initialize a system
On 9/4/18 5:13 PM, Alexander Duyck wrote:
> On Tue, Sep 4, 2018 at 1:07 PM Pasha Tatashin
> wrote:
>>
>> Hi Alexander,
>>
>> This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
>> initialize allocated memory, and by setting memory to all ones in debug
>> build we ensure
On 9/4/18 5:13 PM, Alexander Duyck wrote:
> On Tue, Sep 4, 2018 at 1:07 PM Pasha Tatashin
> wrote:
>>
>> Hi Alexander,
>>
>> This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
>> initialize allocated memory, and by setting memory to all ones in debug
>> build we ensure
On Tue, Sep 4, 2018 at 1:07 PM Pasha Tatashin
wrote:
>
> Hi Alexander,
>
> This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
> initialize allocated memory, and by setting memory to all ones in debug
> build we ensure that no callers rely on this function to return zeroed
>
On Tue, Sep 4, 2018 at 1:07 PM Pasha Tatashin
wrote:
>
> Hi Alexander,
>
> This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
> initialize allocated memory, and by setting memory to all ones in debug
> build we ensure that no callers rely on this function to return zeroed
>
Hi Alexander,
This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
initialize allocated memory, and by setting memory to all ones in debug
build we ensure that no callers rely on this function to return zeroed
memory just by accident.
And, the accidents are frequent because
Hi Alexander,
This is a wrong way to do it. memblock_virt_alloc_try_nid_raw() does not
initialize allocated memory, and by setting memory to all ones in debug
build we ensure that no callers rely on this function to return zeroed
memory just by accident.
And, the accidents are frequent because
On Tue, Sep 4, 2018 at 12:25 PM Dave Hansen wrote:
>
> On 09/04/2018 11:33 AM, Alexander Duyck wrote:
> > --- a/mm/memblock.c
> > +++ b/mm/memblock.c
> > @@ -1444,7 +1444,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
> >
> > ptr = memblock_virt_alloc_internal(size, align,
> >
On Tue, Sep 4, 2018 at 12:25 PM Dave Hansen wrote:
>
> On 09/04/2018 11:33 AM, Alexander Duyck wrote:
> > --- a/mm/memblock.c
> > +++ b/mm/memblock.c
> > @@ -1444,7 +1444,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
> >
> > ptr = memblock_virt_alloc_internal(size, align,
> >
On 09/04/2018 11:33 AM, Alexander Duyck wrote:
> --- a/mm/memblock.c
> +++ b/mm/memblock.c
> @@ -1444,7 +1444,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
>
> ptr = memblock_virt_alloc_internal(size, align,
> min_addr, max_addr, nid);
>
On 09/04/2018 11:33 AM, Alexander Duyck wrote:
> --- a/mm/memblock.c
> +++ b/mm/memblock.c
> @@ -1444,7 +1444,7 @@ void * __init memblock_virt_alloc_try_nid_raw(
>
> ptr = memblock_virt_alloc_internal(size, align,
> min_addr, max_addr, nid);
>
From: Alexander Duyck
On systems with a large amount of memory it can take a significant amount
of time to initialize all of the page structs with the PAGE_POISON_PATTERN
value. I have seen it take over 2 minutes to initialize a system with
over 12GB of RAM.
In order to work around the issue I
From: Alexander Duyck
On systems with a large amount of memory it can take a significant amount
of time to initialize all of the page structs with the PAGE_POISON_PATTERN
value. I have seen it take over 2 minutes to initialize a system with
over 12GB of RAM.
In order to work around the issue I
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