On Fri, Aug 30, 2019 at 02:36:56PM +0200, Michal Hocko wrote:
> > - Free page: remove it from the buddy allocator and set it as
> > PageReserved|PageHWPoison.
> > - Used page: migrate it and do not release it (skip put_page in
> > unmap_and_move for MR_MEMORY_FAILURE
> > reason). Set it
On Fri 30-08-19 12:45:35, Oscar Salvador wrote:
> On Tue, Aug 27, 2019 at 09:28:13AM +0200, Oscar Salvador wrote:
> > On Tue, Aug 27, 2019 at 01:34:29AM +, Naoya Horiguchi wrote:
> > > > @Naoya: I could give it a try if you are busy.
> > >
> > > Thanks for raising hand. That's really
On Tue, Aug 27, 2019 at 09:28:13AM +0200, Oscar Salvador wrote:
> On Tue, Aug 27, 2019 at 01:34:29AM +, Naoya Horiguchi wrote:
> > > @Naoya: I could give it a try if you are busy.
> >
> > Thanks for raising hand. That's really wonderful. I think that the series
> > [1] is not
> > merge yet
On Tue, Aug 27, 2019 at 01:34:29AM +, Naoya Horiguchi wrote:
> > @Naoya: I could give it a try if you are busy.
>
> Thanks for raising hand. That's really wonderful. I think that the series [1]
> is not
> merge yet but not rejected yet, so feel free to reuse/update/revamp it.
I will
On Mon, Aug 26, 2019 at 12:41:50PM +0200, Oscar Salvador wrote:
> Hi,
>
> When analyzing a problem reported by one of our customers, I stumbbled upon
> an issue
> that origins from the fact that poisoned pages end up in the buddy allocator.
>
> Let me break down the stepts that lie to the
On Mon 26-08-19 12:41:50, Oscar Salvador wrote:
[...]
> I checked [1], and it seems that [2] was going towards fixing this kind of
> issue.
>
> I think it is about time to revamp the whole thing.
I completely agree. The current state of hwpoison is just too fragile to
be practically usable. We
Hi,
When analyzing a problem reported by one of our customers, I stumbbled upon an
issue
that origins from the fact that poisoned pages end up in the buddy allocator.
Let me break down the stepts that lie to the problem:
1) We soft-offline a page
2) Page gets flagged as HWPoison and is being
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