Re: [PATCH glibc-2.44] Fix __pthread_timedblock for hurd

Hi,

I can make available the source for this backtrace if needed.
The backtrace of a hung javac looks like:

demo@zamhurd64:/part4/git/icedtea$ sudo gdb --pid=`pidof javac` bootstrap/jdk1.6.0/bin/javac
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Reading symbols from bootstrap/jdk1.6.0/bin/javac...
Attaching to program: /part4/git/icedtea/openjdk.build-boot/j2sdk-image/bin/javac, process 17420
[New Thread 17420.1]
[New Thread 17420.2]
[New Thread 17420.3]
[New Thread 17420.4]
[New Thread 17420.5]
[New Thread 17420.6]
[New Thread 17420.7]
[New Thread 17420.8]
[New Thread 17420.9]
[New Thread 17420.10]
[New Thread 17420.11]
Reading symbols from /part4/git/icedtea/./bootstrap/jdk1.6.0/bin/../lib/amd64/jli/libjli.so...
Reading symbols from /usr/lib/x86_64-gnu/libc.so.0.3...
Reading symbols from /usr/lib/debug/.build-id/40/f3c2def1b19b203a9af053342b29d6a654cea4.debug...
Reading symbols from /usr/lib/x86_64-gnu/libz.so.1...
(No debugging symbols found in /usr/lib/x86_64-gnu/libz.so.1)
Reading symbols from /lib/ld-x86-64.so.1...
Reading symbols from /usr/lib/debug/.build-id/9c/c0e72bc6047e35eb6a0c29b3b32d98a0aeb7bb.debug...
Reading symbols from /usr/lib/x86_64-gnu/libmachuser.so.1...
Reading symbols from /usr/lib/debug/.build-id/8d/28677975f90577c086c8018a26783ade339190.debug...
Reading symbols from /usr/lib/x86_64-gnu/libhurduser.so.0.3...
Reading symbols from /usr/lib/debug/.build-id/33/f1cf73f25990c290d2c91b5bdbc73474fd9f05.debug...
Reading symbols from /part4/git/icedtea/./bootstrap/jdk1.6.0/jre/lib/amd64/server/libjvm.so...
Reading symbols from /usr/lib/x86_64-gnu/libstdc++.so.6...
(No debugging symbols found in /usr/lib/x86_64-gnu/libstdc++.so.6)
Reading symbols from /usr/lib/x86_64-gnu/libm.so.6...
Reading symbols from /usr/lib/debug/.build-id/75/03ecb0ca26e697aa95fd72af1606d3ad3b8df5.debug...
Reading symbols from /usr/lib/x86_64-gnu/libgcc_s.so.1...
(No debugging symbols found in /usr/lib/x86_64-gnu/libgcc_s.so.1)
Reading symbols from /usr/lib/x86_64-gnu/librt.so.1...
Reading symbols from /usr/lib/debug/.build-id/68/20482e5bc954efd95acb086ca66d0a8efd7859.debug...
Reading symbols from /part4/git/icedtea/openjdk.build-boot/j2sdk-image/jre/lib/amd64/libverify.so...
Reading symbols from /part4/git/icedtea/openjdk.build-boot/j2sdk-image/jre/lib/amd64/libjava.so...
Reading symbols from /part4/git/icedtea/openjdk.build-boot/j2sdk-image/jre/lib/amd64/libzip.so...
Reading symbols from /part4/git/icedtea/openjdk.build-boot/j2sdk-image/jre/lib/amd64/libnio.so...
Reading symbols from /part4/git/icedtea/openjdk.build-boot/j2sdk-image/jre/lib/amd64/libnet.so...
Reading symbols from /usr/lib/x86_64-gnu/libgio-2.0.so.0...
--Type <RET> for more, q to quit, c to continue without paging--c
(No debugging symbols found in /usr/lib/x86_64-gnu/libgio-2.0.so.0)
Reading symbols from /usr/lib/x86_64-gnu/libgobject-2.0.so.0...
(No debugging symbols found in /usr/lib/x86_64-gnu/libgobject-2.0.so.0)
Reading symbols from /usr/lib/x86_64-gnu/libglib-2.0.so.0...
(No debugging symbols found in /usr/lib/x86_64-gnu/libglib-2.0.so.0)
Reading symbols from /usr/lib/x86_64-gnu/libgmodule-2.0.so.0...
(No debugging symbols found in /usr/lib/x86_64-gnu/libgmodule-2.0.so.0)
Reading symbols from /usr/lib/x86_64-gnu/libffi.so.8...
(No debugging symbols found in /usr/lib/x86_64-gnu/libffi.so.8)
Reading symbols from /usr/lib/x86_64-gnu/libatomic.so.1...
(No debugging symbols found in /usr/lib/x86_64-gnu/libatomic.so.1)
Reading symbols from /usr/lib/x86_64-gnu/libpcre2-8.so.0...
(No debugging symbols found in /usr/lib/x86_64-gnu/libpcre2-8.so.0)
Reading symbols from /usr/lib/x86_64-gnu/libpthread.so.0.3...
Reading symbols from /usr/lib/debug/.build-id/00/64479050c6a78de4aa12d8bdd8b64af3fba5f0.debug...
(gdb) thread apply all bt

Thread 11 (Thread 17420.11):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3fc2cc0, option=option@entry=258, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=50, timeout=50, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc27 in __GI___pthread_timedblock (thread=thread@entry=0x40b8680, abstime=abstime@entry=0x3fc2db0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:61
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x40b8348, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b3828 in os::Linux::safe_cond_timedwait (_cond=0x40b8348, _mutex=<optimized out>, _abstime=0x3fc2db0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=0x40b8300, millis=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6040
#6  os::PlatformEvent::park (this=this@entry=0x40b8300, millis=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6002
#7  0x0000000002377865 in ParkCommon (ev=<optimized out>, timo=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:430
#8  Monitor::IWait (this=this@entry=0x4008510, Self=Self@entry=0x40b7000, timo=timo@entry=50) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#9  0x0000000002378332 in Monitor::wait (this=0x4008510, no_safepoint_check=no_safepoint_check@entry=true, timeout=timeout@entry=50, as_suspend_equivalent=as_suspend_equivalent@entry=false) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:1115
#10 0x00000000024efb02 in WatcherThread::sleep (this=this@entry=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.cpp:1254
#11 0x00000000024efbef in WatcherThread::run (this=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.cpp:1299
#12 0x00000000023ab972 in java_start (thread=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#13 0x0000000001145a88 in entry_point (self=0x40b8680, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x40b7000) at ./htl/pt-create.c:74
#14 0x0000000000000000 in ??? ()

Thread 10 (Thread 17420.10):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3ec0ca0, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=48, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x40ace20) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=0x40ac848, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000023b365d in os::PlatformEvent::park (this=this@entry=0x40ac800) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5984
#5  0x0000000002377797 in ParkCommon (ev=<optimized out>, timo=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#6  Monitor::IWait (this=this@entry=0x40060a0, Self=Self@entry=0x40ab000, timo=timo@entry=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#7  0x0000000002378332 in Monitor::wait (this=0x40060a0, no_safepoint_check=no_safepoint_check@entry=true, timeout=timeout@entry=0, as_suspend_equivalent=as_suspend_equivalent@entry=false) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:1115
#8  0x000000000244f17b in ServiceThread::service_thread_entry (jt=0x40ab000, __the_thread__=0x40ab000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/serviceThread.cpp:104
#9  0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40ab000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
--Type <RET> for more, q to quit, c to continue without paging--c
#10 0x00000000023ab972 in java_start (thread=0x40ab000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#11 0x0000000001145a88 in entry_point (self=0x40ace20, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x40ab000) at ./htl/pt-create.c:74
#12 0x0000000000000000 in ??? ()

Thread 9 (Thread 17420.9):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3dc0c40, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=44, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x40a9940) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=0x40a9448, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000023b365d in os::PlatformEvent::park (this=this@entry=0x40a9400) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5984
#5  0x0000000002377797 in ParkCommon (ev=<optimized out>, timo=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#6  Monitor::IWait (this=this@entry=0x4008310, Self=Self@entry=0x40a8000, timo=timo@entry=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#7  0x00000000023783de in Monitor::wait (this=0x4008310, no_safepoint_check=no_safepoint_check@entry=false, timeout=timeout@entry=0, as_suspend_equivalent=as_suspend_equivalent@entry=false) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:1130
#8  0x0000000001fe3864 in CompileQueue::get (this=this@entry=0x40a4dc0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.hpp:198
#9  0x0000000001fe8102 in CompileBroker::compiler_thread_loop () at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.cpp:1574
#10 0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40a8000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
#11 0x00000000023ab972 in java_start (thread=0x40a8000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#12 0x0000000001145a88 in entry_point (self=0x40a9940, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x40a8000) at ./htl/pt-create.c:74
#13 0x0000000000000000 in ??? ()

Thread 8 (Thread 17420.8):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3cbec40, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=34, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x40a6e70) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=0x40a6948, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000023b365d in os::PlatformEvent::park (this=this@entry=0x40a6900) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5984
#5  0x0000000002377797 in ParkCommon (ev=<optimized out>, timo=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#6  Monitor::IWait (this=this@entry=0x4008310, Self=Self@entry=0x40a5000, timo=timo@entry=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#7  0x00000000023783de in Monitor::wait (this=0x4008310, no_safepoint_check=no_safepoint_check@entry=false, timeout=timeout@entry=0, as_suspend_equivalent=as_suspend_equivalent@entry=false) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:1130
#8  0x0000000001fe3864 in CompileQueue::get (this=this@entry=0x40a4dc0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.hpp:198
#9  0x0000000001fe8102 in CompileBroker::compiler_thread_loop () at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.cpp:1574
#10 0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
#11 0x00000000023ab972 in java_start (thread=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#12 0x0000000001145a88 in entry_point (self=0x40a6e70, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x40a5000) at ./htl/pt-create.c:74
#13 0x0000000000000000 in ??? ()

Thread 7 (Thread 17420.7):
#0  0x00000000010a9d9b in __GI__hurd_intr_rpc_mach_msg (msg=msg@entry=0x3bbda20, option=option@entry=3, send_size=send_size@entry=112, rcv_size=rcv_size@entry=48, rcv_name=40, timeout=timeout@entry=0, notify=<optimized out>) at ./hurd/intr-msg.c:110
#1  0x0000000001370d02 in __gsync_wait_intr (task=<optimized out>, addr=addr@entry=41490048, val1=val1@entry=0, val2=val2@entry=0, msec=msec@entry=0, flags=flags@entry=0) at ./build-tree/hurd-amd64-libc/mach/RPC_gsync_wait.c:187
#2  0x000000000114c06c in __sem_timedwait_internal (sem=0x2791680 <sig_sem>, clock_id=0, timeout=0x0) at ../sysdeps/htl/sem-timedwait.c:79
#3  0x00000000023ab335 in check_pending_signals (wait=wait@entry=true) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:2735
#4  0x00000000023aebca in os::signal_wait () at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:2759
#5  0x00000000023a7285 in signal_thread_entry (thread=<optimized out>, __the_thread__=0x40a2800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/os.cpp:241
#6  0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40a2800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
#7  0x00000000023ab972 in java_start (thread=0x40a2800) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#8  0x0000000001145a88 in entry_point (self=0x40a40c0, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x40a2800) at ./htl/pt-create.c:74
#9  0x0000000000000000 in ??? ()

Thread 6 (Thread 17420.6):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3abc730, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=38, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x4077560) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=0x4076c48, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000023b365d in os::PlatformEvent::park (this=0x4076c00) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5984
#5  0x00000000023a00f5 in ObjectMonitor::wait (this=0x10003658, millis=0, interruptible=true, __the_thread__=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/objectMonitor.cpp:1553
#6  0x00000000024bcc6f in ObjectSynchronizer::wait (obj=..., millis=0, __the_thread__=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:387
#7  0x000000000220bff5 in JVM_MonitorWait (env=0x40759d8, handle=<optimized out>, ms=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/prims/jvm.cpp:562
#8  0x00000000080148d8 in ??? ()
#9  0x0000000003abca10 in ??? ()
#10 0x00000000024bd73a in ObjectSynchronizer::slow_enter (obj=..., lock=0x0, __the_thread__=0x7f5a02870) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:258
#11 ObjectSynchronizer::fast_enter (obj=..., lock=0x0, attempt_rebias=<optimized out>, __the_thread__=0x7f5a02870) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:180
#12 0x0000000008006170 in ??? ()
#13 0x0000000000000000 in ??? ()

Thread 5 (Thread 17420.5):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x39bc7a0, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=3, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x40749c0) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=0x4074148, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000023b365d in os::PlatformEvent::park (this=0x4074100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5984
#5  0x00000000023a00f5 in ObjectMonitor::wait (this=0x10002108, millis=0, interruptible=true, __the_thread__=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/objectMonitor.cpp:1553
#6  0x00000000024bcc6f in ObjectSynchronizer::wait (obj=..., millis=0, __the_thread__=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:387
#7  0x000000000220bff5 in JVM_MonitorWait (env=0x40731d8, handle=<optimized out>, ms=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/prims/jvm.cpp:562
#8  0x00000000080148d8 in ??? ()
#9  0x00000000039bcb28 in ??? ()
#10 0x0000000004073000 in ??? ()
#11 0x00000000039bca80 in ??? ()
#12 0x00000000021b47b3 in InterpreterRuntime::monitorexit (thread=0x7f5a02878, elem=0x0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/basicLock.hpp:67
#13 0x0000000008006170 in ??? ()
#14 0x0000000000000000 in ??? ()

Thread 4 (Thread 17420.4):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x38bbbb0, option=option@entry=258, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=6, timeout=999, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc27 in __GI___pthread_timedblock (thread=thread@entry=0x406f2f0, abstime=abstime@entry=0x38bbca0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:61
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x406ed48, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b3828 in os::Linux::safe_cond_timedwait (_cond=0x406ed48, _mutex=<optimized out>, _abstime=0x38bbca0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=0x406ed00, millis=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6040
#6  os::PlatformEvent::park (this=this@entry=0x406ed00, millis=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6002
#7  0x0000000002377865 in ParkCommon (ev=<optimized out>, timo=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:430
#8  Monitor::IWait (this=this@entry=0x4004b50, Self=Self@entry=0x406e000, timo=timo@entry=1000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#9  0x0000000002378332 in Monitor::wait (this=0x4004b50, no_safepoint_check=no_safepoint_check@entry=true, timeout=1000, as_suspend_equivalent=as_suspend_equivalent@entry=false) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:1115
#10 0x0000000002551e95 in VMThread::loop (this=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/vmThread.cpp:454
#11 0x00000000025524bb in VMThread::run (this=0x406e000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/vmThread.cpp:288
#12 0x00000000023ab972 in java_start (thread=0x406e000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#13 0x0000000001145a88 in entry_point (self=0x406f2f0, start_routine=0x23ab7c0 <java_start(Thread*)>, arg=0x406e000) at ./htl/pt-create.c:74
#14 0x0000000000000000 in ??? ()

Thread 3 (Thread 17420.3):
Python Exception <class 'gdb.error'>: Couldn't recognize signal trampoline.
#0  <signal handler called>

Thread 2 (Thread 17420.2):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x1b7df40, option=option@entry=3, send_size=48, rcv_size=rcv_size@entry=4096, rcv_name=rcv_name@entry=28, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001087f51 in __mach_msg_server_timeout (demux=demux@entry=0x10cc550 <msgport_server>, max_size=4096, rcv_name=28, option=option@entry=0, timeout=timeout@entry=0) at ./mach/msgserver.c:146
#3  0x000000000108802a in __mach_msg_server (demux=demux@entry=0x10cc550 <msgport_server>, max_size=<optimized out>, rcv_name=<optimized out>) at ./mach/msgserver.c:191
#4  0x00000000010cc5d2 in _hurd_msgport_receive (arg=<optimized out>) at ./hurd/msgportdemux.c:50
#5  0x0000000001145a88 in entry_point (self=0x200000000f10, start_routine=0x10cc590 <_hurd_msgport_receive>, arg=0x0) at ./htl/pt-create.c:74
#6  0x0000000000000000 in ??? ()

Thread 1 (Thread 17420.1):
#0  0x000000000108732c in __GI___mach_msg_trap () at /build/reproducible-path/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x103d930, option=option@entry=2, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=29, timeout=timeout@entry=0, notify=0) at ./mach/msg.c:111
#2  0x0000000001144106 in __GI___pthread_block (thread=thread@entry=0x200000000010) at ../sysdeps/mach/htl/pt-block.c:46
#3  0x00000000011454ab in __pthread_cond_timedwait_internal (cond=cond@entry=0x200000018fd0, mutex=mutex@entry=0x200000018fb0, clockid=clockid@entry=0, abstime=abstime@entry=0x0) at ../sysdeps/htl/pt-cond-timedwait.c:168
#4  0x00000000011458d5 in __GI___pthread_cond_clockwait (cond=cond@entry=0x200000018fd0, mutex=mutex@entry=0x200000018fb0, clockid=clockid@entry=0, abstime=abstime@entry=0x0) at ../sysdeps/htl/pt-cond-timedwait.c:51
#5  0x0000000001147b49 in __pthread_join_common (thread=<optimized out>, status=status@entry=0x103da78, try=try@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0) at ./htl/pt-join.c:55
#6  0x0000000001147c7c in __GI___pthread_join (thread=<optimized out>, status=status@entry=0x103da78) at ./htl/pt-join.c:99
#7  0x000000000105258d in ContinueInNewThread0 (continuation=continuation@entry=0x104b800 <JavaMain>, stack_size=1048576, args=0x103db10) at ../../../src/solaris/bin/java_md_solinux.c:1060
#8  0x000000000104d149 in ContinueInNewThread (ifn=ifn@entry=0x0, threadStackSize=<optimized out>, threadStackSize@entry=0, argc=1, argc@entry=0, argv=argv@entry=0x0, mode=mode@entry=0, what=what@entry=0x0, ret=0) at ../../../src/share/bin/java.c:1870
#9  0x000000000105263c in JVMInit (ifn=0x0, ifn@entry=0x103dbf0, threadStackSize=0, argc=0, argv=0x0, mode=0, mode@entry=1, what=0x0, what@entry=0x200000018c70 "com.sun.tools.javac.Main", ret=<optimized out>) at ../../../src/solaris/bin/java_md_solinux.c:1096
#10 0x000000000104df03 in JLI_Launch (argc=<optimized out>, argv=<optimized out>, jargc=jargc@entry=2, jargv=jargv@entry=0x3030 <const_jargs>, appclassc=appclassc@entry=2, appclassv=appclassv@entry=0x3020 <const_appclasspath>, fullversion=0x18f1 "1.7.0_321-b01", dotversion=0x18ed "1.7", pname=0x18e8 "java", lname=0x18e8 "java", javaargs=1 '\001', cpwildcard=1 '\001', javaw=0 '\000', ergo=1) at ../../../src/share/bin/java.c:299
#11 0x00000000000017e3 in main (argc=<optimized out>, argv=<optimized out>) at ../../src/share/bin/main.c:125
(gdb)

Damien

On 19/8/26 7:56 am, Samuel Thibault wrote:

> Hello,
>
> Damien Zammit, le mar. 18 août 2026 00:16:37 +0000, a ecrit:
>
> OK, maybe you are correct regarding the abstime parameter.
>
> That is just what posix says.
>
> However, the man page for pthread_cond_init(3) says:
>
> That manual page does not talk about pthread_cond_clockwait, so it most
> probably does not know at all about any other clock than CLOCK_REALTIME,
> thus the confusing text.
>
> This is not consistent with CLOCK_MONOTONIC on GNU/Hurd.
> Could this be causing a misalignment in java? I am getting hangs on
> pthread_cond_timedwait().
>
> Please be more specific about the exact condition under which you get a
> hang.
>
> Samuel