Happens occassionally

testDetachExec(frysk.proc.TestTaskObserverDetach)junit.framework.AssertionFailedError:
stat.state expected:<T> but was:<S>
   at frysk.proc.TestTaskObserverDetach$Detach.assertDetach(TestRunner)
   at frysk.proc.TestTaskObserverDetach.testDetachExec(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)

------- Additional Comment #1 From Nurdin Premji 2006-11-27 18:20 -------

With ./frysk-core/TestRunner -r 1000 frysk.proc.TestTaskObserverDetach
on fc6

------- Additional Comment #2 From Andrew Cagney 2006-12-04 17:11 -------

Reproduced with:
  Mon Dec  4 12:10:04 EST 2006
sources on:
  Linux nettle 2.6.18-1.2239.fc5 #1 Fri Nov 10 13:04:06 EST 2006 i686 i686 i386
GNU/Linux
kernel.

------- Additional Comment #3 From Andrew Cagney 2006-12-04 17:29 -------

toadstool$ uname -a
Linux toadstool.toronto.redhat.com 2.6.17-1.2174_FC5 #1 Tue Aug 8 15:30:55 EDT
2006 i686 i686 i386 GNU/Linux

1)
testDetachClone(frysk.proc.TestTaskObserverDetach)junit.framework.AssertionFailedError:
pending signal Sig_USR1
   at frysk.proc.TestLib.tearDown(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)

------- Additional Comment #4 From Andrew Cagney 2006-12-04 17:30 -------

towns$ uname -a
Linux towns.toronto.redhat.com 2.6.18-1.2849.fc6 #1 SMP Fri Nov 10 12:36:14 EST
2006 i686 i686 i386 GNU/Linux
1)
testDetachExec(frysk.proc.TestTaskObserverDetach)junit.framework.AssertionFailedError:
event loop run explictly stopped (adding signaled observer)
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.proc.TestTaskObserverDetach$Detach.<init>(TestRunner)
   at frysk.proc.TestTaskObserverDetach$4$DetachExec.<init>(TestRunner)
   at frysk.proc.TestTaskObserverDetach.testDetachExec(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)

------- Additional Comment #5 From Andrew Cagney 2006-12-04 17:39 -------

repo on:
towns$ uname -a
Linux towns.toronto.redhat.com 2.6.18-1.2849.fc6 #1 SMP Fri Nov 10 12:36:14 EST
2006 i686 i686 i386 GNU/Linux

testDetachExec(frysk.proc.TestTaskObserverDetach)junit.framework.AssertionFailedError:
stat.state expected:<T> but was:<S>
   at frysk.proc.TestTaskObserverDetach$Detach.assertDetach(TestRunner)
   at frysk.proc.TestTaskObserverDetach.testDetachExec(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)

but note that this fails in other ways also, see bugs hanging off this one.

------- Additional Comment #6 From Andrew Cagney 2006-12-04 18:19 -------

Test when run in isolation, and for 1000 times, passes just fine.

------- Additional Comment #7 From Andrew Cagney 2006-12-04 18:34 -------

Reducing test shows this fails:

Running testDetachFork(frysk.proc.TestTaskObserverDetach) ...PASS
Running testDetachExec(frysk.proc.TestTaskObserverDetach) ...FAIL
  junit.framework.AssertionFailedError: event loop run explictly stopped
(attempting detach (eventAcks (Sig_USR1)))

Time: 5.227
There was 1 failure:
1)
testDetachExec(frysk.proc.TestTaskObserverDetach)junit.framework.AssertionFailedError:
event loop run explictly stopped (attempting detach (eventAcks (Sig_USR1)))
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.proc.TestLib.assertRunUntilStop(TestRunner)
   at frysk.proc.TestLib$AckHandler.assertAwait(TestRunner)
   at frysk.proc.TestLib$AckHandler.await(TestRunner)
   at frysk.proc.TestTaskObserverDetach$Detach.assertDetach(TestRunner)
   at frysk.proc.TestTaskObserverDetach.testDetachExec(TestRunner)
   at frysk.junit.Runner.runCases(TestRunner)
   at frysk.junit.Runner.runArchCases(TestRunner)
   at frysk.junit.Runner.runTestCases(TestRunner)
   at TestRunner.main(TestRunner)

FAILURES!!!
Tests run: 2,  Failures: 1,  Errors: 0

------- Additional Comment #8 From Andrew Cagney 2006-12-04 18:54 -------

From the log:

FINE: testDetachExec(frysk.proc.TestTaskObserverDetach) <<<<<<<<<<<<<<<< end setUp

3967.3967: received signal 13 (Broken pipe)
3967.3967: parent exit
3967.3967: process-parent switched to 1
3967.3967: notify 3941 with 10 (User defined signal 1) -- process-parent
switched to 1
4-Dec-06 1:36:22 PM frysk.proc.TestLib killDuringTearDown
FINE: testDetachExec(frysk.proc.TestTaskObserverDetach) killDuringTearDown 3969

I.e., the previous test's process was still running and sending frysk signals.

------- Additional Comment #9 From Andrew Cagney 2006-12-04 19:26 -------

3966.3966: forked 3967
3966.3966: notify 3941 with 12 (User defined signal 2) -- forked 3967
4-Dec-06 1:36:22 PM frysk.proc.TestLib$AckHandler$AckSignal execute

So the child forks, and the fork is blocked.  The parent is killed (during tear
down), the child then resumes and sends frysk a stray signal.

Need to kill this forked child.

------- Additional Comment #10 From Andrew Cagney 2006-12-04 21:11 -------

Index: frysk-core/frysk/proc/ChangeLog
2006-12-04  Andrew Cagney  <cagney@redhat.com>

        * Testlib.java (setUp): Add children of proceses already in
        tidsToKillDuringTearDown to tidsToKillDuringTearDown.

------- Additional Comment #11 From Andrew Cagney 2006-12-04 21:15 -------

*** Bug 3636 has been marked as a duplicate of this bug. ***

------- Additional Comment #12 From Andrew Cagney 2006-12-04 21:15 -------

*** Bug 3637 has been marked as a duplicate of this bug. ***

------- Additional Comment #13 From Andrew Cagney 2006-12-04 21:16 -------

*** Bug 3638 has been marked as a duplicate of this bug. ***

------- Additional Comment #14 From Andrew Cagney 2006-12-05 03:03 -------

*** Bug 3594 has been marked as a duplicate of this bug. ***