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 1734081
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
** Tags added: eoan
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https://bugs.launchpad.net/bugs/1734081
Title:
[Feature] Crystal Ridge: Add a "memory registration with lease"
semantic to V4L2
Status in intel:
Triaged
Status in linux package in Ubuntu:
Incomplete
Bug description:
Description
The Video for Linux v2 API suffers from the same problem as RDMA vs
DAX, i.e. it wants to established long lived memory registrations. Add
a semantic that allows the kernel to revoke access to the registration
so that the elevated page counts are time bounded.
Target Kernel: 5.2
Target Release: 19.10
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