On Thu, Mar 11, 2021 at 02:00:40PM -0800, Hugh Dickins wrote:
> On Thu, 11 Mar 2021, Jue Wang wrote:
> > In our experiment with SHMEM THPs, later accesses resulted in a zero
> > page allocated instead of a SIGBUS with BUS_MCEERR_AR reported by the
> > page fault handler. That part might be an
On Thu, 11 Mar 2021, Jue Wang wrote:
> On Thu, Mar 11, 2021 at 7:14 AM HORIGUCHI NAOYA(堀口 直也)
> wrote:
> > On Wed, Mar 10, 2021 at 11:22:18PM -0800, Hugh Dickins wrote:
> > >
> > > I'm not much into memory-failure myself, but Jue discovered that the
> > > SIGBUS never arrives: because
Huge thanks to Hugh for his expertise in shmem thps and forwarding this message!
Hi Naoya,
This is the first time I reply to an email in a Linux upstream thread,
apologies for any technical issues due to my email client. And my
apologies for the state of the whole patch not quite shareable with
On Wed, Mar 10, 2021 at 11:22:18PM -0800, Hugh Dickins wrote:
> But something we found on the way,
> we do have a patch for: add_to_kill() uses page_address_in_vma(), but
> that has not been used on file THP tails before - fix appended at the
> end below, so as not to waste your time on that bit.
On Tue, 9 Feb 2021, Naoya Horiguchi wrote:
> From: Naoya Horiguchi
>
> Currently hwpoison code checks PageAnon() for thp and refuses to handle
> errors on non-anonymous thps (just for historical reason). We now
> support non-anonymou thp like shmem one, so this patch suggests to enable
> to
On Tue, Feb 09, 2021 at 03:21:28PM +0900, Naoya Horiguchi wrote:
> From: Naoya Horiguchi
>
> Currently hwpoison code checks PageAnon() for thp and refuses to handle
> errors on non-anonymous thps (just for historical reason). We now
> support non-anonymou thp like shmem one, so this patch
On Tue, Feb 09, 2021 at 11:46:40AM -0800, Andrew Morton wrote:
> On Tue, 9 Feb 2021 15:21:28 +0900 Naoya Horiguchi
> wrote:
>
> > Currently hwpoison code checks PageAnon() for thp and refuses to handle
> > errors on non-anonymous thps (just for historical reason). We now
> > support
On Tue, 9 Feb 2021 15:21:28 +0900 Naoya Horiguchi
wrote:
> Currently hwpoison code checks PageAnon() for thp and refuses to handle
> errors on non-anonymous thps (just for historical reason). We now
> support non-anonymou thp like shmem one, so this patch suggests to enable
> to handle shmem
From: Naoya Horiguchi
Currently hwpoison code checks PageAnon() for thp and refuses to handle
errors on non-anonymous thps (just for historical reason). We now
support non-anonymou thp like shmem one, so this patch suggests to enable
to handle shmem thps. Fortunately, we already have
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