** Description changed:

  [Impact]
  With 4.15 kernel, not all binary files inside a subtest directory in 
tools/testing/selftests of a kernel tree can be built with command:
    make TARGETS=$subtest
  
  For example, the following tests in net directory won't be built:
   * reuseport_bpf
   * reuseport_bpf_cpu
   * reuseport_dualstack
   * reuseaddr_conflict
   * reuseport_bpf_numa
  
  They can be build with:
    make TARGETS=net run_tests
  
  However, this will also start all of the tests in this subset, which is
  not ideal for the granularity improvement.
  
  [Fix]
- * 14f1889f selftests: Fix loss of test output in run_kselftests.sh
- * 44f01352 selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP 
headers
- * 8ce72dc3 selftests: fix headers_install circular dependency
- * 27d79a2b selftests: fix bpf build/test workflow regression when 
KBUILD_OUTPUT is set
- * e2e88325 selftests: vm: Fix test build failure when built by itself
+ 1. 14f1889f selftests: Fix loss of test output in run_kselftests.sh
+ 2. 44f01352 selftests: Makefile set KSFT_TAP_LEVEL to prevent nested TAP 
headers
+ 3. 8ce72dc3 selftests: fix headers_install circular dependency
+ 4. 27d79a2b selftests: fix bpf build/test workflow regression when 
KBUILD_OUTPUT is set
+ 5. e2e88325 selftests: vm: Fix test build failure when built by itself
  
- These patches can be cherry-picked for Bionic.
- The third patch (8ce72dc3) is the fix for this issue. The 4th (27d79a2b) and 
the 5th (e2e88325) have been marked as a fix for 8ce72dc3.
+ The 2nd, 3rd and 4th patch would need to be applied with -C1, the other
+ two can be cherry-picked for Bionic.
+ 
+ The third patch (8ce72dc3) is the fix for this issue. The 4th (27d79a2b)
+ and the 5th (e2e88325) have been marked as a fix for 8ce72dc3.
  
  [Test]
- Tested on a baremetal node "glameow" with 4.15.0-159-generic
+ Tested on a baremetal node "glameow" with 4.15.0-159-generic, the test cases 
number and results are identical before and after applying this change.
  
  [Where problems could occur]
- As this is just tested with generic Bionic 4.15 kernel on bare-metal, there 
is no guarantee this can work flawlessly on variants.
+ As this is just tested with generic Bionic 4.15 kernel on a bare-metal 
system, it's is possible to see other issues on different variants. If this 
change is incorrect it will cause issue to our automated-testing and 
regression-testing, but it won't affect the real kernel functionality.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1949889

Title:
  Unable to build net/reuseport_bpf and other tests in
  ubuntu_kernel_selftests on Bionic with make command

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1949889/+subscriptions


-- 
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to