On Wed, Feb 24, 2021 at 11:47:49AM +0800, Muchun Song wrote:
> I have been looking at the dequeue_huge_page_node_exact().
> If a PageHWPoison huge page is in the free pool list, the page will
> not be allocated to the user. The PageHWPoison huge page
> will be skip in the dequeue_huge_page_node_exa
On Wed, Feb 24, 2021 at 6:32 AM Oscar Salvador wrote:
>
> On Tue, Feb 23, 2021 at 04:41:28PM +0100, Oscar Salvador wrote:
> > On Tue, Feb 23, 2021 at 11:50:05AM +0100, Oscar Salvador wrote:
> > > > CPU0: CPU1:
> > > >
> > > > set_compound_
On Tue, Feb 23, 2021 at 04:41:28PM +0100, Oscar Salvador wrote:
> On Tue, Feb 23, 2021 at 11:50:05AM +0100, Oscar Salvador wrote:
> > > CPU0: CPU1:
> > > set_compound_page_dtor(HUGETLB_PAGE_DTOR);
> > > memory_failure_hugetlb
> > > get_hwp
On Tue, Feb 23, 2021 at 11:50:05AM +0100, Oscar Salvador wrote:
> > CPU0: CPU1:
> > set_compound_page_dtor(HUGETLB_PAGE_DTOR);
> > memory_failure_hugetlb
> > get_hwpoison_page
> > __get_hwpoison_page
> > get_page_unless_zero
> >
On Tue, Feb 23, 2021 at 06:27:07PM +0800, Muchun Song wrote:
> > > > +
> > > > + if (alloc_huge_page_vmemmap(h, page)) {
> > > > + int zeroed;
> > > > +
> > > > + spin_lock(&hugetlb_lock);
> > > > + INIT_LIST_HEAD(&page->lru);
> > > > + set_compound_page_dt
On Tue, Feb 23, 2021 at 5:28 PM Oscar Salvador wrote:
>
> On Mon, Feb 22, 2021 at 04:00:27PM -0800, Mike Kravetz wrote:
> > > -static void update_and_free_page(struct hstate *h, struct page *page)
> > > +static int update_and_free_page(struct hstate *h, struct page *page)
> > > + __releases(&hug
On Mon, Feb 22, 2021 at 04:00:27PM -0800, Mike Kravetz wrote:
> > -static void update_and_free_page(struct hstate *h, struct page *page)
> > +static int update_and_free_page(struct hstate *h, struct page *page)
> > + __releases(&hugetlb_lock) __acquires(&hugetlb_lock)
> > {
> > int i;
> > +
On Tue, Feb 23, 2021 at 8:01 AM Mike Kravetz wrote:
>
> On 2/19/21 2:49 AM, Muchun Song wrote:
> > When we free a HugeTLB page to the buddy allocator, we should allocate
> > the vmemmap pages associated with it. But we may cannot allocate vmemmap
> > pages when the system is under memory pressure,
On 2/19/21 2:49 AM, Muchun Song wrote:
> When we free a HugeTLB page to the buddy allocator, we should allocate
> the vmemmap pages associated with it. But we may cannot allocate vmemmap
> pages when the system is under memory pressure, in this case, we just
> refuse to free the HugeTLB page instea
On Mon, Feb 22, 2021 at 06:31:12PM +0800, Muchun Song wrote:
> On Mon, Feb 22, 2021 at 5:25 PM Michal Hocko wrote:
> >
> > On Sat 20-02-21 12:20:36, Muchun Song wrote:
> > > On Fri, Feb 19, 2021 at 10:12 PM Michal Hocko wrote:
> > [...]
> > > > What about hugetlb page poisoning on HW failure (res
On Mon, Feb 22, 2021 at 5:25 PM Michal Hocko wrote:
>
> On Sat 20-02-21 12:20:36, Muchun Song wrote:
> > On Fri, Feb 19, 2021 at 10:12 PM Michal Hocko wrote:
> [...]
> > > What about hugetlb page poisoning on HW failure (resp. soft offlining)?
> >
> > If the HW poisoned hugetlb page failed to be
On Sat 20-02-21 12:20:36, Muchun Song wrote:
> On Fri, Feb 19, 2021 at 10:12 PM Michal Hocko wrote:
[...]
> > What about hugetlb page poisoning on HW failure (resp. soft offlining)?
>
> If the HW poisoned hugetlb page failed to be dissolved, the page
> will go back to the free list with PG_HWPois
On Fri, Feb 19, 2021 at 10:12 PM Michal Hocko wrote:
>
> On Fri 19-02-21 18:49:49, Muchun Song wrote:
> > When we free a HugeTLB page to the buddy allocator, we should allocate
> > the vmemmap pages associated with it. But we may cannot allocate vmemmap
> > pages when the system is under memory pr
On Fri 19-02-21 18:49:49, Muchun Song wrote:
> When we free a HugeTLB page to the buddy allocator, we should allocate
> the vmemmap pages associated with it. But we may cannot allocate vmemmap
> pages when the system is under memory pressure, in this case, we just
> refuse to free the HugeTLB page
When we free a HugeTLB page to the buddy allocator, we should allocate
the vmemmap pages associated with it. But we may cannot allocate vmemmap
pages when the system is under memory pressure, in this case, we just
refuse to free the HugeTLB page instead of looping forever trying to
allocate the pag
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