[chrony-dev] 008-ntpera test failure

[Vincent Blut <vincent.debian@xxxxxxx>]

Hi Miroslav,

This test fails reproducibly with chrony 4.2 and clknetsim HEAD in a Debian
LXC testbed. The error seems to happen in the second inner for loop.
For the test to pass, we expect that the "check_sync" function returns 1.
It does not here since the check_stat function returns 0 (i.e. "test_ok").

Here is the test output:

008-ntpera   Testing NTP eras:
  network with 1*1 servers and 1 clients:
    non-default settings:
    starting node 1:                                            OK
    starting node 2:                                            OK
    running simulation:                                         OK
    checking chronyd exit:
      node 1:                                                   OK
      node 2:                                                   OK
    checking source selection:
      node 2:                                                   OK
    checking mean/min incoming/outgoing packet interval:
      node 1: 2.73e+02 2.73e+02 6.40e+01 6.40e+01               OK
      node 2: 2.73e+02 2.73e+02 6.40e+01 6.40e+01               OK
    checking clock sync time, max/rms time/freq error:
      node 2: 132 1.29e-04 1.35e-05 8.86e-05 2.50e-07           OK
  network with 1*1 servers and 1 clients:
    non-default settings:
      time_offset=-1e-1
    starting node 1:                                            OK
    starting node 2:                                            OK
    running simulation:                                         OK
    checking chronyd exit:
      node 1:                                                   OK
      node 2:                                                   OK
    checking source selection:
      node 2:                                                   OK
    checking mean/min incoming/outgoing packet interval:
      node 1: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
      node 2: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
    checking clock sync time, max/rms time/freq error:
      node 2: 132 1.68e-04 1.33e-05 1.04e-04 2.15e-07           OK
  network with 1*1 servers and 1 clients:
    non-default settings:
      time_offset=-1e-1
    starting node 1:                                            OK
    starting node 2:                                            OK
    running simulation:                                         OK
    checking chronyd exit:
      node 1:                                                   OK
      node 2:                                                   OK
    checking source selection:
      node 2:                                                   OK
    checking mean/min incoming/outgoing packet interval:
      node 1: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
      node 2: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
    checking clock sync time, max/rms time/freq error:
      node 2: 132 1.68e-04 1.33e-05 1.04e-04 2.16e-07           OK
  network with 1*1 servers and 1 clients:
    non-default settings:
      time_offset=-1e-1
    starting node 1:                                            OK
    starting node 2:                                            OK
    running simulation:                                         OK
    checking chronyd exit:
      node 1:                                                   OK
      node 2:                                                   OK
    checking source selection:
      node 2:                                                   OK
    checking mean/min incoming/outgoing packet interval:
      node 1: 2.53e+02 2.53e+02 5.93e+01 5.93e+01               OK
      node 2: 2.53e+02 2.53e+02 5.93e+01 5.93e+01               OK
    checking clock sync time, max/rms time/freq error:
      node 2: 10001 7.47e+02 8.33e-02 4.13e+02 7.97e-02         BAD
  network with 1*1 servers and 1 clients:
    non-default settings:
      time_offset=-1e-1
    starting node 1:                                            OK
    starting node 2:                                            OK
    running simulation:                                         OK
    checking chronyd exit:
      node 1:                                                   OK
      node 2:                                                   OK
    checking source selection:
      node 2:                                                   OK
    checking mean/min incoming/outgoing packet interval:
      node 1: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
      node 2: 2.66e+02 2.66e+02 6.40e+01 6.40e+01               OK
    checking clock sync time, max/rms time/freq error:
      node 2: 132 1.68e-04 1.33e-05 1.04e-04 2.16e-07           OK
FAIL


SUMMARY:
  TOTAL  1
  PASSED 0
  FAILED 1    (008-ntpera) (24505)
  SKIPPED 0   ()

Do you have any tips on how to properly debug this?

Have a good day,
Vincent

Attachment: signature.asc
Description: PGP signature