[GXemul-devel] Time issues running NetBSD/landisk under gxemul

[Andreas G. <gs...@gs...>]

Hi gxemul-devel,

Running the NetBSD test suite on NetBSD-current/landisk under gxemul
0.6.2 on a NetBSD/amd64 host, after a few minutes, time stops
advancing in the virtual machine.

For example, in the console log at

  http://www.gson.org/netbsd/bugs/build/landisk/2019/2019.09.13.08.09.24/test.log

the first hundred or so testcases show a nonzero execution time as
expected:

    file_return_while: [2.409073s] Passed.
    for_break_case: [2.290891s] Passed.
    for_break_compound: [0.336354s] Passed.

but all the ones after that show an execution time of zero:

    for_break_file: [0.000000s] Passed.
    for_break_for: [0.000000s] Passed.
    for_break_func: [0.000000s] Passed.
    for_break_subshell: [0.000000s] Passed.

When the guest has entered this state, a "sleep" command still takes
about the expected amount of real time, but the clock does not advance
during it:

  # date; sleep 10; date
  Mon Sep 16 08:04:47 UTC 2019
  [ten second pause]
  Mon Sep 16 08:04:47 UTC 2019

This does not appear to happen on real hardware, based on the
logs at http://www.netbsd.org/~martin/landisk-atf/ .
-- 
Andreas Gustafsson, gs...@gs...