Public bug reported:
[Impact]
In order to provide ubuntu-fan we need to maintain additional kernel
SAUCE patches that are currently conflicting with upstream code,
potentially breaking networking eBPF APIs.
To prevent such incompatibility the whole patch set requires a major
redesign.
However, after investigations and a detailed assessment we have not
found any relevant real-world use-case that still requuires ubuntu-fan,
as most of its features are now available in the upstream kernel and
user-space tools, using alternative solutions.
Moreover, maintaining ubuntu-fan is also slowing down / preventing the
development of other packages (see for example LP: #2051672).
Therefore, we are proposing to deprecate ubuntu-fan starting with noble.
[Test case]
We have ubuntu-fan test cases in our regression testing suite. Such
tests are expected to fail with the noble kernel, so we can hint/disable
them in Noble.
[Fix]
Drop (do not apply) the ubuntu-fan SAUCE patch set from the Ubuntu
kernel.
[Regression potential]
There are still some existing tools/systems that may still rely on
ubuntu-fan, so we may experience regressions when such systems are
moving to noble. However, the potential of breaking eBPF networking has
a much higher impact, so we can probably workaround any potential
ubuntu-fan regression using alternative upstream solutions.
** Affects: iproute2 (Ubuntu)
Importance: Undecided
Status: New
** Affects: iproute2 (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: iproute2 (Ubuntu Noble)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2063298
Title:
deprecate ubuntu-fan in Noble
Status in iproute2 package in Ubuntu:
New
Status in iproute2 source package in Noble:
New
Bug description:
[Impact]
In order to provide ubuntu-fan we need to maintain additional kernel
SAUCE patches that are currently conflicting with upstream code,
potentially breaking networking eBPF APIs.
To prevent such incompatibility the whole patch set requires a major
redesign.
However, after investigations and a detailed assessment we have not
found any relevant real-world use-case that still requuires ubuntu-
fan, as most of its features are now available in the upstream kernel
and user-space tools, using alternative solutions.
Moreover, maintaining ubuntu-fan is also slowing down / preventing the
development of other packages (see for example LP: #2051672).
Therefore, we are proposing to deprecate ubuntu-fan starting with
noble.
[Test case]
We have ubuntu-fan test cases in our regression testing suite. Such
tests are expected to fail with the noble kernel, so we can
hint/disable them in Noble.
[Fix]
Drop (do not apply) the ubuntu-fan SAUCE patch set from the Ubuntu
kernel.
[Regression potential]
There are still some existing tools/systems that may still rely on
ubuntu-fan, so we may experience regressions when such systems are
moving to noble. However, the potential of breaking eBPF networking
has a much higher impact, so we can probably workaround any potential
ubuntu-fan regression using alternative upstream solutions.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/iproute2/+bug/2063298/+subscriptions
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