Public bug reported:

[Impact]
System stuck at boot when Intel 7560 is in use, because devlink
is waiting for reference to be released.

[Fix]
Commit "devlink: remove the registration guarantee of references"
weakens the refcount requirement for devlink {,un}registering,

[Test]
System reboots over 2000 times when the fix is applied.

[Where problems could occur]
devlink is part of net core API, so it has many users, therefore all of
devlink users can be affected by this fix. However, all the devlink
users can be affected by the same issue (i.e. waiting for reference to
decrease to 0), hence this is still a desirable fix.

** Affects: linux-oem-6.1 (Ubuntu)
     Importance: Undecided
         Status: Invalid

** Affects: linux-oem-6.1 (Ubuntu Jammy)
     Importance: Medium
         Status: Confirmed

** Also affects: linux-oem-6.1 (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Changed in: linux-oem-6.1 (Ubuntu Jammy)
       Status: New => Confirmed

** Changed in: linux-oem-6.1 (Ubuntu Jammy)
   Importance: Undecided => Medium

** Changed in: linux-oem-6.1 (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/2036515

Title:
  Fix system boot hang caused by devlink

Status in linux-oem-6.1 package in Ubuntu:
  Invalid
Status in linux-oem-6.1 source package in Jammy:
  Confirmed

Bug description:
  [Impact]
  System stuck at boot when Intel 7560 is in use, because devlink
  is waiting for reference to be released.

  [Fix]
  Commit "devlink: remove the registration guarantee of references"
  weakens the refcount requirement for devlink {,un}registering,

  [Test]
  System reboots over 2000 times when the fix is applied.

  [Where problems could occur]
  devlink is part of net core API, so it has many users, therefore all of
  devlink users can be affected by this fix. However, all the devlink
  users can be affected by the same issue (i.e. waiting for reference to
  decrease to 0), hence this is still a desirable fix.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-oem-6.1/+bug/2036515/+subscriptions


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