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[Jürg Häfliger <1968310@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1968310

Title:
  arp_ndisc_evict_nocarrier.sh in net from ubuntu_kernel_selftests
  failed on J-oem-5.17 / K

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux-hwe-5.17 package in Ubuntu:
  Invalid
Status in linux-oem-5.17 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Invalid
Status in linux-hwe-5.17 source package in Jammy:
  Won't Fix
Status in linux-oem-5.17 source package in Jammy:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released
Status in linux-hwe-5.17 source package in Kinetic:
  Invalid
Status in linux-oem-5.17 source package in Kinetic:
  Invalid

Bug description:
  [Impact]
  In selftests: net: arp_ndisc_evict_nocarrier.sh, even all of the
  sub-tests from this script have passed, the overall test result
  is still a fail.

    # selftests: net: arp_ndisc_evict_nocarrier.sh
    # run arp_evict_nocarrier=1 test
    # ok
    # run arp_evict_nocarrier=0 test
    # ok
    # run all.arp_evict_nocarrier=0 test
    # ok
    # run ndisc_evict_nocarrier=1 test
    # ok
    # run ndisc_evict_nocarrier=0 test
    # ok
    # run all.ndisc_evict_nocarrier=0 test
    # ok
    not ok 1 selftests: net: arp_ndisc_evict_nocarrier.sh # exit=255

  This is caused by the cleanup() in the script, as it's trying to
  access a non-existing file.

  [Fix]
  * 9c4d7f45d6 selftests: net: fix cleanup_v6() for arp_ndisc_evict_nocarrier

  This patch can be cherry-picked into all affected kernels.

  [Test]
  Run the patched test and the test will pass.

  [Where problems could occur]
  Change limited to testing tools, no impact to real kernel function
  or test performances.

  [Original Bug Report]
  Issue found on Jammy OEM 5.17.0-1003.3

  It looks like all the sub-tests has passed, but the final return value
  is not 0.

   Running 'make run_tests -C net TEST_PROGS=arp_ndisc_evict_nocarrier.sh TEST_GEN_PROGS='' TEST_CUSTOM_PROGS='''
   make: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net'
   make --no-builtin-rules ARCH=x86 -C ../../../.. headers_install
   make[1]: Entering directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
     INSTALL ./usr/include
   make[1]: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
   TAP version 13
   1..1
   # selftests: net: arp_ndisc_evict_nocarrier.sh
   # run arp_evict_nocarrier=1 test
   # ok
   # run arp_evict_nocarrier=0 test
   # ok
   # run all.arp_evict_nocarrier=0 test
   # ok
   # run ndisc_evict_nocarrier=1 test
   # ok
   # run ndisc_evict_nocarrier=0 test
   # ok
   # run all.ndisc_evict_nocarrier=0 test
   # ok
   not ok 1 selftests: net: arp_ndisc_evict_nocarrier.sh # exit=255
   make: Leaving directory '/home/ubuntu/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/net'

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