On 9/30/2021 12:11 PM, Dan Williams wrote:
On Thu, Sep 30, 2021 at 11:15 AM Jane Chu <[email protected]> wrote:
Hi, Dan,
On 9/16/2021 1:33 PM, Dan Williams wrote:
The new consideration of
whole_page() errors means that the code in nfit_handle_mce() is wrong
to assume that the length of the error is just 1 cacheline. When that
bug is fixed the badblocks range will cover the entire page in
whole_page() notification cases.
Does this explain what I saw a while ago: inject two poisons
to the same block, and pwrite clears one poison at a time?
Potentially, yes. If you injected poison over 512 bytes then it could
take 2 pwrites() of 256-bytes each to clear that poison. In the DAX
case nothing is enforcing sector aligned I/O for pwrite().
Thanks!
-jane
