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[Jürg Häfliger <1933108@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1932239 ***
    https://bugs.launchpad.net/bugs/1932239

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1933108

Title:
  udpgro.sh/udpgro_bench.sh from selftests.net ADT test failure with
  linux-hwe-5.11

Status in ubuntu-kernel-tests:
  Confirmed
Status in linux-hwe-5.11 package in Ubuntu:
  Invalid
Status in linux-hwe-5.11 source package in Focal:
  Confirmed

Bug description:
  udpgro.sh and udpgro_bench.sh from selftests.net are failing with
  hwe-5.11 in focal due to the lack of bpf:

  00:27:02 DEBUG| [stdout] # selftests: net: udpgro_bench.sh
  00:27:02 DEBUG| [stdout] # Missing xdp_dummy helper. Build bpf selftest first
  00:27:02 DEBUG| [stdout] not ok 23 selftests: net: udpgro_bench.sh # exit=255
  00:27:02 DEBUG| [stdout] # selftests: net: udpgro.sh
  00:27:02 DEBUG| [stdout] # Missing xdp_dummy helper. Build bpf selftest first
  00:27:02 DEBUG| [stdout] not ok 24 selftests: net: udpgro.sh # exit=255

  Which is caused by a build failure (likely the same issue as bug
  1926330):

  00:18:21 DEBUG| Running 'sudo sh -c 'echo 1 > /proc/sys/net/ipv4/conf/all/accept_local''
  00:18:21 DEBUG| Running 'make -C linux/tools/testing/selftests TARGETS=bpf SKIP_TARGETS= KDIR=/usr/src/linux-headers-5.11.0-20-generic'
  00:18:21 DEBUG| [stdout] make: Entering directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
  00:18:21 DEBUG| [stdout] make --no-builtin-rules ARCH=x86 -C ../../.. headers_install
  00:18:21 DEBUG| [stdout] make[1]: Entering directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
  00:18:22 DEBUG| [stdout]   INSTALL ./usr/include
  00:18:22 DEBUG| [stdout] make[1]: Leaving directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux'
  00:18:22 DEBUG| [stdout] make[1]: Entering directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/bpf'
  00:18:22 DEBUG| [stdout] make[1]: Leaving directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests/bpf'
  00:18:22 DEBUG| [stderr] Makefile:125: *** Cannot find a vmlinux for VMLINUX_BTF at any of "  ../../../../vmlinux /sys/kernel/btf/vmlinux /boot/vmlinux-5.11.0-20-generic".  Stop.
  00:18:22 DEBUG| [stdout] make: Leaving directory '/tmp/autopkgtest.NBLYCG/build.0It/src/autotest/client/tmp/ubuntu_kernel_selftests/src/linux/tools/testing/selftests'
  00:18:22 DEBUG| [stderr] make: *** [Makefile:165: all] Error 2

  =======================
  Testing failed on:
      amd64: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/amd64/l/linux-hwe-5.11/20210612_013139_52bf0@/log.gz
      arm64: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/arm64/l/linux-hwe-5.11/20210612_185828_49cb4@/log.gz
      ppc64el: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/ppc64el/l/linux-hwe-5.11/20210612_011655_0d30e@/log.gz
      s390x: https://autopkgtest.ubuntu.com/results/autopkgtest-focal/focal/s390x/l/linux-hwe-5.11/20210611_233218_cf940@/log.gz

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