Bug 4289

Summary:	testStepSigLongJmp(frysk.rt.TestStepping)junit.framework.AssertionFailedError: event loop run explictly stopped (Attempting to add observer)
Product:	frysk	Reporter:	Andrew Cagney <cagney>
Component:	general	Assignee:	Mike Cvet <mcvet>
Status:	RESOLVED FIXED
Severity:	normal	CC:	mark
Priority:	P2
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:
Bug Depends on:	4431
Bug Blocks:	3346, 2104

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.