Bug 4271 - testSteppingtestInsertRemove hangs intermittently on FC6 x86_64
Summary: testSteppingtestInsertRemove hangs intermittently on FC6 x86_64
Status: RESOLVED FIXED
Alias: None
Product: frysk
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Mark Wielaard
URL:
Keywords:
Depends on:
Blocks: 3486
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Reported: 2007-03-23 20:45 UTC by Kris Van Hees
Modified: 2008-04-17 16:33 UTC (History)
0 users

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Last reconfirmed:

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Description Kris Van Hees 2007-03-23 20:45:42 UTC 
Running the frysk-core test suite, I experience intermittent hangs on the
testSteppingtestInsertRemove test.  Preliminary opinion is that the code is
waiting for a signal that is never delivered.

Thread 1:
#0  0x00000034d200cbfb in read () from /lib64/libpthread.so.0
#1  0x000000000052b275 in frysk::testbed::ForkTestLib$ForkedInputStream::read (
    this=0x2aaaaaf67a50, buf=<value optimized out>, off=0, len=2048)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/testbed/cni/ForkTestLib.cxx:144
#2  0x00000034d44989a5 in java::io::BufferedInputStream::refill ()
   from /usr/lib64/libgcj.so.7rh
#3  0x00000034d449cca0 in java::io::InputStreamReader::refill ()
   from /usr/lib64/libgcj.so.7rh
#4  0x00000034d449cefb in java::io::InputStreamReader::read ()
   from /usr/lib64/libgcj.so.7rh
#5  0x00000034d4498304 in java::io::BufferedReader::fill ()
   from /usr/lib64/libgcj.so.7rh
#6  0x00000034d44a2fc8 in java::io::BufferedReader::readLine ()
   from /usr/lib64/libgcj.so.7rh
#7  0x00000000004c5af1 in frysk.proc.TestBreakpoints.testInsertRemove()void (
    this=0x2aaaaaf70c40)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-core/frysk/proc/TestBreakpoints.java:422
#8  0x00000000004c4346 in
frysk.proc.TestBreakpoints.testSteppingtestInsertRemove()void (this=0xc)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-core/frysk/proc/TestBreakpoints.java:549
#9  0x00000034d48e630c in _Jv_strtod_r () from /usr/lib64/libgcj.so.7rh
#10 0x00000034d48e6198 in _Jv_strtod_r () from /usr/lib64/libgcj.so.7rh
#11 0x00000034d41b58e5 in _Jv_CallAnyMethodA () from /usr/lib64/libgcj.so.7rh
#12 0x00000034d41b6030 in _Jv_CallAnyMethodA () from /usr/lib64/libgcj.so.7rh
#13 0x00000034d41b6383 in java::lang::reflect::Method::invoke ()
   from /usr/lib64/libgcj.so.7rh
#14 0x0000000000540e86 in junit.framework.TestCase.runTest()void (
    this=<value optimized out>) at junit/framework/TestCase.java:154
#15 0x0000000000540cb6 in junit.framework.TestCase.runBare()void (
    this=<value optimized out>) at junit/framework/TestCase.java:127
#16 0x00000000005429d4 in junit.framework.TestResult$1.protect()void (
    this=<value optimized out>) at junit/framework/TestResult.java:106
#17 0x00000000005416a2 in
junit.framework.TestResult.runProtected(junit.framework.Test,
junit.framework.Protectable)void (this=0x2aaaab2e7190, 
    test=0x2aaaaaf70c40, p=0x2aaaab269708)
    at junit/framework/TestResult.java:124
#18 0x0000000000541603 in
junit.framework.TestResult.run(junit.framework.TestCase)void
(this=0x2aaaab2e7190, test=0x2aaaaaf70c40)
    at junit/framework/TestResult.java:109
#19 0x0000000000540c84 in
junit.framework.TestCase.run(junit.framework.TestResult)void
(this=0xfffffffffffffe00, result=0xc)
    at junit/framework/TestCase.java:118
#20 0x00000000005404b1 in junit.framework.TestSuite.runTest(junit.framework.Test
, junit.framework.TestResult)void (this=<value optimized out>, 
    test=0x2aaaaaf70c40, result=0x2aaaab2e7190)
    at junit/framework/TestSuite.java:208
#21 0x000000000054046d in
junit.framework.TestSuite.run(junit.framework.TestResult)void (this=<value
optimized out>, result=0x2aaaab2e7190)
    at junit/framework/TestSuite.java:203
#22 0x00000000005404b1 in
junit.framework.TestSuite.runTest(junit.framework.Test,
junit.framework.TestResult)void (this=<value optimized out>, 
    test=0x2aaaaaf47180, result=0x2aaaab2e7190)
    at junit/framework/TestSuite.java:208
#23 0x000000000054046d in
junit.framework.TestSuite.run(junit.framework.TestResult)void (this=<value
optimized out>, result=0x2aaaab2e7190)
    at junit/framework/TestSuite.java:203
#24 0x00000000005344d8 in junit.textui.TestRunner.doRun(junit.framework.Test,
boolean)junit.framework.TestResult (this=0x2aaaaae06f00, suite=0x2aaaaae43a38, 
    wait=false) at junit/textui/TestRunner.java:116
#25 0x000000000053446c in
junit.textui.TestRunner.doRun(junit.framework.Test)junit.framework.TestResult
(this=0xc, test=0x2aaaab1db00c)
    at junit/textui/TestRunner.java:109
#26 0x000000000051cae7 in frysk.junit.Runner.runCases(java.util.Collection)int
    (this=0x2aaaaae06f00, testClasses=<value optimized out>)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/junit/Runner.java:289
#27 0x000000000051ce30 in
frysk.junit.Runner.runArchCases(java.util.Collection)int (this=0x2aaaaae06f00,
testClasses=0x2aaaaab107a8)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/junit/Runner.java:330
#28 0x000000000051c0af in frysk.junit.Runner.runTestCases(java.util.Collection,
frysk.Config, java.util.Collection, frysk.Config)int (this=0x2aaaaae06f00, 
    tests=0x2aaaaab107a8, config=<value optimized out>, 
    tests32=0x2aaaaab10668, config32=0x2aaaaadb4ab0)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/junit/Runner.java:625
#29 0x00000000004b7dc6 in TestRunner.main(java.lang.String[])void (
    args=0x2aaaaaae8f60) at TestRunner.java:63
#30 0x00000034d41a41b3 in gnu::java::lang::MainThread::call_main ()
   from /usr/lib64/libgcj.so.7rh
#31 0x00000034d41f925e in gnu::java::lang::MainThread::run ()
   from /usr/lib64/libgcj.so.7rh
#32 0x00000034d41b2738 in _Jv_ThreadRun () from /usr/lib64/libgcj.so.7rh
#33 0x00000034d4175a05 in _Jv_RunMain () from /usr/lib64/libgcj.so.7rh
#34 0x00000000004b7d16 in main (argc=-1424117748, argv=0x800)
    at /tmp/cc93VWxo.i:14

Thread 2:
#0  0x00000034d14c4a36 in poll () from /lib64/libc.so.6
#1  0x0000000000528397 in frysk::sys::Poll::poll (pollObserver=0x2aaaaaf67ad0, 
    timeout=-1)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/sys/cni/Poll.cxx:197
#2  0x00000000004f2c9f in frysk.event.EventLoop.runEventLoop(boolean)void (
    this=0x2aaaab27e8e8, pendingOnly=32)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-core/frysk/event/EventLoop.java:317
#3  0x00000000004f2d25 in frysk.event.EventLoop.run()void (this=0x2aaaab27e8e8)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-core/frysk/event/EventLoop.java:416
#4  0x00000000004c4a63 in frysk.proc.TestBreakpoints$EventLoopRunner.run()void
    (this=0x2aaaab1d3a80)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-core/frysk/proc/TestBreakpoints.java:943
#5  0x00000034d41b2738 in _Jv_ThreadRun () from /usr/lib64/libgcj.so.7rh
#6  0x00000034d41b8f77 in _Jv_ThreadRegister () from /usr/lib64/libgcj.so.7rh
#7  0x00000034d48f6a66 in _Jv_strtod_r () from /usr/lib64/libgcj.so.7rh
#8  0x00000034d2006305 in start_thread () from /lib64/libpthread.so.0
#9  0x00000034d14cd50d in clone () from /lib64/libc.so.6
#10 0x0000000000000000 in ?? ()

Thread 3:
#0  0x00000034d200a416 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib64/libpthread.so.0
#1  0x00000034d41b93bc in _Jv_CondWait () from /usr/lib64/libgcj.so.7rh
#2  0x00000034d41aed60 in java::lang::Object::wait ()
   from /usr/lib64/libgcj.so.7rh
#3  0x000000000051e7cc in frysk.sys.Ptrace$PtraceThread.run()void (
    this=0x2aaaab10bcc0)
    at
/home/aedil/build_farm/frysk_fresh/frysk_config/frysk-imports/frysk/sys/Ptrace.java:220
#4  0x00000034d41b2738 in _Jv_ThreadRun () from /usr/lib64/libgcj.so.7rh
#5  0x00000034d41b8f77 in _Jv_ThreadRegister () from /usr/lib64/libgcj.so.7rh
#6  0x00000034d48f6a66 in _Jv_strtod_r () from /usr/lib64/libgcj.so.7rh
#7  0x00000034d2006305 in start_thread () from /lib64/libpthread.so.0
#8  0x00000034d14cd50d in clone () from /lib64/libc.so.6
#9  0x0000000000000000 in ?? ()

Thread 4:
#0  0x00000034d200a416 in pthread_cond_wait@@GLIBC_2.3.2 ()
   from /lib64/libpthread.so.0
#1  0x00000034d41b93bc in _Jv_CondWait () from /usr/lib64/libgcj.so.7rh
#2  0x00000034d41a386c in gnu::gcj::runtime::FinalizerThread::run ()
   from /usr/lib64/libgcj.so.7rh
#3  0x00000034d41b2738 in _Jv_ThreadRun () from /usr/lib64/libgcj.so.7rh
#4  0x00000034d41b8f77 in _Jv_ThreadRegister () from /usr/lib64/libgcj.so.7rh
#5  0x00000034d48f6a66 in _Jv_strtod_r () from /usr/lib64/libgcj.so.7rh
#6  0x00000034d2006305 in start_thread () from /lib64/libpthread.so.0
#7  0x00000034d14cd50d in clone () from /lib64/libc.so.6
#8  0x0000000000000000 in ?? ()
Comment 1 Andrew Cagney 2007-03-23 21:22:26 UTC 
See http://sources.redhat.com/bugzilla/show_bug.cgi?id=3486
I'm pretty sure this is a duplicate.
Comment 2 Mark Wielaard 2007-03-23 23:32:34 UTC 
If you could get it to run with log output (TestRunner -c FINE) that would be
interesting. Although that might disrupt the precise timing and make it not hang
again of course.
Comment 3 Andrew Cagney 2007-04-09 19:54:58 UTC 
frysk's event loop is using waitpid now; is it still occuring?
Comment 4 Mark Wielaard 2008-04-17 16:33:22 UTC 
Has been run hunderds of times (even running multiple in parallel) without any
hangs anymore (but see bug #4847 and #6044).