Bug 4289 - testStepSigLongJmp(frysk.rt.TestStepping)junit.framework.AssertionFailedError: event loop run explictly stopped (Attempting to add observer)
Summary: testStepSigLongJmp(frysk.rt.TestStepping)junit.framework.AssertionFailedError...
Status: RESOLVED FIXED
Alias: None
Product: frysk
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Mike Cvet
URL:
Keywords:
Depends on: 4431
Blocks: 3346 2104
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Reported: 2007-03-27 17:09 UTC by Andrew Cagney
Modified: 2007-07-27 18:23 UTC (History)
1 user (show)

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Description Andrew Cagney 2007-03-27 17:09:03 UTC 
$ uname -a
Linux nettle 2.6.20-1.2307.fc5 #1 Sun Mar 18 20:44:48 EDT 2007 i686 i686 i386
GNU/Linux
testStepSigLongJmp(frysk.rt.TestStepping)junit.framework.AssertionFailedError:
event loop run explictly stopped (Attempting to add observer)
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.rt.TestStepping.testStepSigLongJmp(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)
Comment 1 Mark Wielaard 2007-03-27 17:20:57 UTC 
Does this also happen with an older (pre-trace) 2.6.17 kernel or a newer 2.6.20
(2933 or higher) kernel with utrace fixes?
Comment 2 Mike Cvet 2007-03-27 21:32:50 UTC 
Its very likely this failure is just a result of the enormous amount of 
instruction stepping required for this test. I'll look into it soon.
Comment 3 Mike Cvet 2007-04-12 19:03:49 UTC 
I've been looking in to this, and it looks like after a lot of instruction 
stepping (which is required at this point, and will be the case until step-out 
works, pending libunwind), then the following line simply refuses to process:

Task.requestUnblock(TaskObserver.Instruction);

The call is made, but never returns and instead hangs. Then the testcase times 
out and fails.
Comment 4 Mike Cvet 2007-07-27 18:23:42 UTC 
Fixed in latest version of TestStepping.

2006-07-27  Mike Cvet  <mcvet@redhat.com>

	* InstructionStepState.java: Moved here from frysk.rt
	* LineStepState.java: Ditto.
	* NextInstructionStepState.java: Ditto.
	* NextInstructionStepTestState.java: Ditto.
	* RunningState.java: Ditto.
	* State.java: Ditto.
	* StepAdvanceState.java: Ditto.
	* StepOutState.java: Ditto.
	* StepOverState.java: Ditto.
	* SteppingEngine.java: Ditto.
	* StoppedState.java: Ditto.
	* TaskStepEngine.java: Ditto.
	* TestSteppingEngine.java: Ditto.
	* TestStepping.java: New file. Fixes #4853.
	
	* TestStepping.java: Marked a couple of tests as broken, via 4855.
	
	* TestStepping.java (testStepSigLongJmp): Enabled test.