Re: [PATCH -next v2] mm: hwposion: support recovery from ksm_might_need_to_copy()

[Andrew Morton]

On Fri, 9 Dec 2022 15:28:01 +0800 Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> wrote:

> When the kernel copy a page from ksm_might_need_to_copy(), but runs
> into an uncorrectable error, it will crash since poisoned page is
> consumed by kernel, this is similar to Copy-on-write poison recovery,
> When an error is detected during the page copy, return VM_FAULT_HWPOISON,
> which help us to avoid system crash. Note, memory failure on a KSM
> page will be skipped, but still call memory_failure_queue() to be
> consistent with general memory failure process.

Thanks.  Sorry, lots of paperwork and bureaucracy:


Is a copy of the oops(?) output available?

Did someone else report this?  If so, is a Reported-by available for
that?  And a Link: for the Reported-by:, which is a coming thing.

Can we identify a Fixes: target?

Is a cc:stable appropriate?