[lldb-dev] [Bug 19605] New: FreeBSD buildbot TestCallWithTimeout failure after r206835

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=19605

            Bug ID: 19605
           Summary: FreeBSD buildbot TestCallWithTimeout failure after
                    r206835
           Product: lldb
           Version: unspecified
          Hardware: PC
                OS: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at cs.uiuc.edu
          Reporter: emaste at freebsd.org
    Classification: Unclassified

After r206835 the FreeBSD buildbot fails TestCallWithTimeout.

Run:
http://llvm-amd64.freebsd.your.org/b/builders/lldb-amd64-freebsd/builds/2044

Failure:

FAIL: LLDB (/usr/bin/clang-amd64) :: test_with_dwarf
(TestCallWithTimeout.ExprCommandWithTimeoutsTestCase)
======================================================================
FAIL: test_with_dwarf (TestCallWithTimeout.ExprCommandWithTimeoutsTestCase)
   Test calling std::String member function.
----------------------------------------------------------------------
Traceback (most recent call last):
  File
"/data/buildslave/lldb-amd64-freebsd/src-llvm/tools/lldb/test/lldbtest.py",
line 370, in wrapper
    return func(self, *args, **kwargs)
  File
"/data/buildslave/lldb-amd64-freebsd/src-llvm/tools/lldb/test/expression_command/timeout/TestCallWithTimeout.py",
line 33, in test_with_dwarf
    self.call_function()
  File
"/data/buildslave/lldb-amd64-freebsd/src-llvm/tools/lldb/test/expression_command/timeout/TestCallWithTimeout.py",
line 67, in call_function
    self.assertTrue (value.GetError().Success() == False)
AssertionError: False is not True
Config=amd64-/usr/bin/clang
----------------------------------------------------------------------
Ran 2 tests in 0.233s

>From TestCallWithTimeout.py:
    58          # First set the timeout too short, and make sure we fail.
    59          options = lldb.SBExpressionOptions()
    60          options.SetTimeoutInMicroSeconds(100)
    61          options.SetUnwindOnError(True)
    62
    63          frame = thread.GetFrameAtIndex(0)
    64          
    65          value = frame.EvaluateExpression ("wait_a_while (10000)",
options)
    66          self.assertTrue (value.IsValid())
    67          self.assertTrue (value.GetError().Success() == False)
    68

So we request a 100uS timeout, but report Success() for the expression.


r206835: http://llvm.org/viewvc/llvm-project?view=rev&revision=206835

Make RunThreadPlan start the timeout clock for each part of the expression
evaluation AFTER the
successful resume for that part.  This will make the timeouts more stable when
lldb is running
in a busy program.

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