Bug 59841 – REGRESSION (r85343-r85349): webkitpy.layout_tests.run_webkit_tests_unittest.MainTest.test_child_processes_2 failing on apple-windows-5

• Component: Tools / Tests
• Status: RESOLVED FIXED

[Adam Roben (:aroben)]

webkitpy.layout_tests.run_webkit_tests_unittest.MainTest.test_child_processes_2 started failing on apple-windows-5 somewhere between these two builds:

http://build.webkit.org/builders/Windows%207%20Release%20%28Tests%29/builds/12308 good
http://build.webkit.org/builders/Windows%207%20Release%20%28Tests%29/builds/12310 bad

It is not failing on apple-windows-6, which is the other slave on the Windows 7 Release (Tests) builder.

[Adam Roben (:aroben)]

I logged into the machine and ran test-webkitpy. I saw this output:

test-webkitpy: INFO     Suppressing most webkitpy logging while running unit tests.
test-webkitpy: WARNING  You are testing webkitpy with a Python version (2.6.5) higher than the minimum version (2.5) it was meant to support.
test-webkitpy: WARNING  Skipping tests in ./Tools/QueueStatusServer due to failure (No module named dev_appserver).  This module is optional.  The failure is likely due to a missing Google AppEngine install.  (http://code.google.com/appengine/downloads.html)
webkitpy.test.main: INFO     Excluding: webkitpy.common.checkout.scm_unittest (use --all to include)
.................................................................................................................................................................................................................root: INFO     this should be logged......................................................................................................................................................................................................................................................................................................      0 [main] ruby 3004 C:\cygwin\bin\ruby.exe: *** fatal error - Internal error: TP_NUM_W_BUFS too small
.E.......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
======================================================================
ERROR: test_child_processes_2 (webkitpy.layout_tests.run_webkit_tests_unittest.M
ainTest)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py", line 206, in test_chil
d_processes_2
    ['--print', 'config', '--worker-model', 'threads', '--child-processes', '2'])
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py", line 111, in logging_run
    parsed_args)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests_unittest.py", line 123, in run_and_capture
    regular_output=regular_output)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/run_webkit_tests.py", line 118, in run
    num_unexpected_results = manager.run(result_summary)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/manager.py", line 775, in run
    self._run_tests(self._test_files_list, result_summary))
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/manager.py", line 661, in _run_tests
    manager_connection.run_message_loop(delay_secs=1.0)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/message_broker.py", line 192, in run_message_loop
    self._broker.run_message_loop(self._run_topic, self._client, delay_secs)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/message_broker.py", line 128, in run_message_loop
    self._run_loop(topic_name, client, block=True, delay_secs=delay_secs)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/message_broker.py", line 142, in _run_loop
    self._dispatch_message(msg, client)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/message_broker.py", line 151, in _dispatch_message
    message_handler(message.src, *optargs)
  File "/home/buildbot/slave/WebKit-BuildSlave/win-release-tests/build/Tools/Scripts/webkitpy/layout_tests/layout_package/manager.py", line 1304, in handle_exception
    raise exception_type, exception_value, exception_traceback
ScriptError: Failed to run "['ruby', '--version']" exit_code: -1

[Adam Roben (:aroben)]

(In reply to comment #1)
> [main] ruby 3004 C:\cygwin\bin\ruby.exe: *** fatal error - Internal error: TP_NUM_W_BUFS too small

This thread seems relevant: http://thread.gmane.org/gmane.os.cygwin/109054

[Adam Roben (:aroben)]

And http://thread.gmane.org/gmane.os.cygwin/119237

[Lucas Forschler]

I uninstalled windows Python 2.5.4, and Windows Twisted via Control Panel | Add/Remove Programs.
I re-ran the cygwin setup/installer.

Cygwin pdated a bunch of components, and is now passing.  Not sure which step did the trick.  I think this may be fixed now.