canonical-ubuntu-qa team mailing list archive

[Jürg Häfliger <2000667@xxxxxxxxxxxxxxxxxx>]

** Tags added: kernel-daily-bug

-- 
You received this bug notification because you are a member of Canonical
Platform QA Team, which is subscribed to ubuntu-kernel-tests.
https://bugs.launchpad.net/bugs/2000667

Title:
  cmsg_so_mark.sh / cmsg_time.sh / cmsg_ipv6.sh in net from
  ubuntu_kernel_selftests hang with non-amd64

Status in ubuntu-kernel-tests:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Kinetic:
  Fix Released
Status in linux source package in Lunar:
  Fix Released

Bug description:
  [Impact]
  cmsg_* tests in net tests from ubuntu_kernel_selftests will hang on
  non-amd64 systems and eventually causing "Incomplete" test results on
  RISCV kernels due to the timeout setting.

  This is because of an infinity while loop caused by a char variable
  used here to take the getopt() return value in cmsg_sender.c, it should
  be an int instead.

  [Fix]
  * 1573c68820 ("selftests: net: fix cmsg_so_mark.sh test hang")
  This patch can be cherry-picked into both Kinetic and Lunar, these test
  cases are only available in these newer kernels.

  [Test]
  Compile the patched cmsg_sender.c on a non-amd64 system, and the cmsg_*
  tests will no longer hanging.

  [Where problems could occur ]
  Change limited to testing tools, no actual impact to real functions.

  
  [Original Bug Report]
  Issue found with 5.19.0-1010.11, 5.19.0-1011.12

  This issue does not exist in 5.19.0-1009.10 because the net test can't
  be built by that time.

  Test output:
   Running 'make run_tests -C net TEST_PROGS=cmsg_so_mark.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=riscv -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: cmsg_so_mark.sh
   Timer expired (5400 sec.), nuking pid 82951

  A manual test shows it will stuck with:
  $ sudo ./cmsg_so_mark.sh
  + NS=ns
  + IP4=172.16.0.1/24
  + TGT4=172.16.0.2
  + IP6=2001:db8:1::1/64
  + TGT6=2001:db8:1::2
  + MARK=1000
  + trap cleanup EXIT
  + ip netns add ns
  + ip netns exec ns sysctl -w 'net.ipv4.ping_group_range=0 2147483647'
  + ip -netns ns link add type dummy
  + ip -netns ns link set dev dummy0 up
  + ip -netns ns addr add 172.16.0.1/24 dev dummy0
  + ip -netns ns addr add 2001:db8:1::1/64 dev dummy0
  + ip -netns ns rule add fwmark 1000 lookup 300
  + ip -6 -netns ns rule add fwmark 1000 lookup 300
  + ip -netns ns route add prohibit any table 300
  + ip -6 -netns ns route add prohibit any table 300
  + BAD=0
  + TOTAL=0
  + for ovr in setsock cmsg both
  + for i in 4 6
  + '[' 4 == 4 ']'
  + TGT=172.16.0.2
  + for p in u i r
  + '[' u == u ']'
  + prot=UDP
  + '[' u == i ']'
  + '[' u == r ']'
  + '[' setsock == setsock ']'
  + m=-M
  + '[' setsock == cmsg ']'
  + '[' setsock == both ']'
  + ip netns exec ns ./cmsg_sender -4 -p u -M 1001 172.16.0.2 1234
  (test stuck here)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/2000667/+subscriptions