[Bug general/5327] New: attaching fhpd to a running fhpd hangs

["mark at klomp dot org" <sourceware-bugzilla at sourceware dot org>]

$ ~/src/frysk-obj/frysk-core/frysk/bindir/fhpd &
[1] 19246
$ ~/src/frysk-obj/frysk-core/frysk/bindir/fhpd 19246
[... hangs ... is pid 19250 ...]

other terminal:
$ ~/src/frysk-obj/frysk-core/frysk/bindir/fstack 19250
Task #19250
#0 0x0000003a1740a8f9 in __pthread_cond_wait () from /lib64/libpthread-2.7.so
#1 0x0000003a1920c950 in _Jv_CondWait(_Jv_ConditionVariable_t*, _Jv_Mutex_t*,
long long, int) () from /usr/lib64/libgcj.so.8rh.0.0
#2 0x0000003a19200f8b in void java::lang::Object::wait(long long, int) () from
/usr/lib64/libgcj.so.8rh.0.0
#3 0x00000000004ccd72 in bool frysk::util::CountDownLatch::await(long long) ()
from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#4 0x00000000004ccd33 in void frysk::util::CountDownLatch::await() () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#5 0x00000000004ba6c7 in void frysk::hpd::CLI::doAttach(frysk::proc::Proc*) ()
from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#6 0x00000000004d7c11 in void
frysk::hpd::AttachCommand::interpret(frysk::hpd::CLI*, frysk::hpd::Input*,
java::lang::Object*) () from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#7 0x00000000004de1ae in void
frysk::hpd::ParameterizedCommand::interpret(frysk::hpd::CLI*,
frysk::hpd::Input*) () from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#8 0x00000000004dda1c in void
frysk::hpd::MultiLevelCommand::interpret(frysk::hpd::CLI*, frysk::hpd::Input*)
() from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#9 0x00000000004bac3c in java::lang::String*
frysk::hpd::CLI::execCommand(java::lang::String*) () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#10 0x00000000004b9def in void
frysk::bindir::fhpd::main(JArray<java::lang::String*>*) () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#11 0x0000003a191f3f72 in void gnu::java::lang::MainThread::call_main() () from
/usr/lib64/libgcj.so.8rh.0.0
#12 0x0000003a192047cf in _Jv_ThreadRun(java::lang::Thread*) () from
/usr/lib64/libgcj.so.8rh.0.0
#13 0x0000003a191ba2d9 in _Jv_RunMain(_Jv_VMInitArgs*, java::lang::Class*, char
const*, int, char const**, bool) () from /usr/lib64/libgcj.so.8rh.0.0
#14 0x00000000004b99d3 in main () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#15 0x0000003a1681e074 in __libc_start_main () from /lib64/libc-2.7.so
#16 0x00000000004b98f9 in void java::awt::Component::transferFocusUpCycle() ()
from /home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
Task #19251
#0 0x0000003a1740a8f9 in __pthread_cond_wait () from /lib64/libpthread-2.7.so
#1 0x0000003a1920c950 in _Jv_CondWait(_Jv_ConditionVariable_t*, _Jv_Mutex_t*,
long long, int) () from /usr/lib64/libgcj.so.8rh.0.0
#2 0x0000003a191f36d1 in void gnu::gcj::runtime::FinalizerThread::run() () from
/usr/lib64/libgcj.so.8rh.0.0
#3 0x0000003a192047cf in _Jv_ThreadRun(java::lang::Thread*) () from
/usr/lib64/libgcj.so.8rh.0.0
#4 0x0000007432418317 in [unknown] from Unknown
#5 0x000000743353ad26 in [unknown] from Unknown
#6 0x0000003a17406407 in start_thread () from /lib64/libpthread-2.7.so
#7 0x0000003a168d4b0d in __clone () from /lib64/libc-2.7.so
Task #19252
#0 0x0000003a1740e0bf in __libc_waitpid () from /lib64/libpthread-2.7.so
#1 0x00000000005646f5 in hidden alias for bool frysk::sys::Wait::wait(int,
frysk::sys::WaitBuilder*, frysk::sys::SignalBuilder*, long long, bool) () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd
#2 0x000000000054a4c1 in bool frysk::sys::Wait::waitAll(long long,
frysk::sys::WaitBuilder*, frysk::sys::SignalBuilder*) () from
/home/mark/src/frysk-obj/frysk-core/frysk/bindir/fhpd

-- 
           Summary: attaching fhpd to a running fhpd hangs
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: mark at klomp dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=5327

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