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 1794766
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: bionic
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https://bugs.launchpad.net/bugs/1794766
Title:
Apply upstream kernel fix to relevant Ubuntu kernels
Status in linux package in Ubuntu:
Incomplete
Bug description:
nbd does not handle a disk resize correctly. This has been fixed
upstream:
https://github.com/torvalds/linux/commit/639812a1ed9bf49ae2c026086fbf975339cd1eef
On Ubuntu Bionic with a "4.15.0-34-generic #37-Ubuntu" kernel a resize
of a (Ceph) rbd image does not propagate to a "rbd-nbd" mapped disk,
until it's unmapped / remapped. See
https://tracker.ceph.com/issues/23137. Other "nbd" mapped disks might
suffer from the same behaviour (not tested).
Ubuntu mainline kernel (4.19-rc5) works correct with regards to this
rbd resize rbd-nbd mapped image.
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