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 1917918
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.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Changed in: linux (Ubuntu Bionic)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1917918
Title:
Add FUA support for XFS
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Bionic:
Incomplete
Bug description:
[Impact]
This 4 patch set adds backported support for Forced Unit Access (FUA)
on XFS file systems to the 18.04 (Bionic) GA (4.15) kernel. FUA on XFS
was added upstream in 4.18.
FUA on XFS is important for SQL server work loads.
[Test Plan]
SQLIOSIM (a package from Microsoft) was used to test performance
improvements. Tests were run with an XFS file system mounted on a persistent
memory block device (PMEM) partition. Performance metrics were found to exhibit
satisfactory improvement gains from the GA kernel.
[Where problems could occur]
Well, these are patches to file system code. They _could_ cause
widespread corruption. However, multiple test passes with sqliosim
exhibited no issues.
[Other Info]
See attached sqliosim.cfg.ini configuration file for test run parameters.
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