[Bug] Crystal Ridge - verify error clearing on writes for per inode fs-dax

[quanxian]

Description:
A dax mounted filesystem redirects the read/write system calls through the dax paths as an optimization, but the dax path is unable to clear media errors.
With per inode fs-dax, userspace can turn off dax using an ioctl, and clear errors using writes. Write a unit test to do that, and inform nvml of this reference way to do it.

Target Kernel: 4.19
Target Release: 18.10

[Leann Ogasawara (leannogasawara)]

Is there a list of commits we should confirm for 18.04?

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1730804

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[quanxian (quanxian-wang)]

not for OSV