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

On 23/8/26 11:34 pm, Samuel Thibault wrote:

> Yes, sure, it works for me too, but what about your java testcase?

(btw, libpthread is empty nowadays, it's all moved to libc)

Noted.

Javac still hung with your change:

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 817
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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/e5/fdcc51032c732e7646b32b7f4efeec2543330d.debug...
Reading symbols from /usr/lib/x86_64-gnu/libz.so.1...
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Reading symbols from /usr/lib/debug/.build-id/d3/10b145ce066b293284e3efbc2bdff66d7abf55.debug...
Reading symbols from /usr/lib/x86_64-gnu/libhurduser.so.0.3...
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Reading symbols from /part4/git/icedtea/./bootstrap/jdk1.6.0/jre/lib/amd64/server/libjvm.so...
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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...
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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...
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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)
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Reading symbols from /usr/lib/debug/.build-id/7f/bbdc7532ac5bdbbc64bce3da60d77650e1814b.debug...
(gdb) thread apply all bt

Thread 11 (Thread 817.11):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3ffcca0, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=51, timeout=50, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x40b8680, abstime=abstime@entry=0x3ffcdb0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#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  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x40b8348, _mutex=<optimized out>, _abstime=0x3ffcdb0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x40b8300, millis=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x0000000002377835 in ParkCommon (ev=<optimized out>, timo=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:430
#7  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
#8  0x0000000002378302 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
#9  0x00000000024efb02 in WatcherThread::sleep (this=this@entry=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.cpp:1254
#10 0x00000000024efbef in WatcherThread::run (this=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.cpp:1299
#11 0x00000000023ab8f2 in java_start (thread=0x40b7000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#12 0x0000000001145a88 in entry_point (self=0x40b8680, start_routine=0x23ab740 <java_start(Thread*)>, arg=0x40b7000) at ./htl/pt-create.c:74
#13 0x0000000000000000 in ??? ()

Thread 10 (Thread 817.10):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3efac30, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=48, timeout=100, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x40ace20, abstime=abstime@entry=0x3efad40, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x40ac848, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x40ac848, _mutex=<optimized out>, _abstime=0x3efad40) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x40ac800, millis=millis@entry=100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x000000000237777f in ParkCommon (timo=0, ev=0x40ac800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#7  ParkCommon (ev=<optimized out>, timo=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:420
#8  Monitor::IWait (this=this@entry=0x40060a0, Self=Self@entry=0x40ab800, timo=timo@entry=0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:806
#9  0x0000000002378302 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
#10 0x000000000244f17b in ServiceThread::service_thread_entry (jt=0x40ab800, __the_thread__=0x40ab800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/serviceThread.cpp:104
#11 0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40ab800) 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
#12 0x00000000023ab8f2 in java_start (thread=0x40ab800) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#13 0x0000000001145a88 in entry_point (self=0x40ace20, start_routine=0x23ab740 <java_start(Thread*)>, arg=0x40ab800) at ./htl/pt-create.c:74
#14 0x0000000000000000 in ??? ()

Thread 9 (Thread 817.9):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3dfaba0, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=44, timeout=100, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x40a9d30, abstime=abstime@entry=0x3dfacb0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x40a9748, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x40a9748, _mutex=<optimized out>, _abstime=0x3dfacb0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x40a9700, millis=millis@entry=100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x0000000002377427 in ParkCommon (timo=0, ev=0x40a9700) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#7  ParkCommon (timo=0, ev=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:420
#8  Monitor::ILock (this=this@entry=0x4008310, Self=Self@entry=0x40a8000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:495
#9  0x0000000002377921 in 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:850
#10 0x00000000023783ae 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
#11 0x0000000001fe3864 in CompileQueue::get (this=this@entry=0x40a4dc0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.hpp:198
#12 0x0000000001fe8102 in CompileBroker::compiler_thread_loop () at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.cpp:1574
#13 0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40a8000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
#14 0x00000000023ab8f2 in java_start (thread=0x40a8000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#15 0x0000000001145a88 in entry_point (self=0x40a9d30, start_routine=0x23ab740 <java_start(Thread*)>, arg=0x40a8000) at ./htl/pt-create.c:74
#16 0x0000000000000000 in ??? ()

Thread 8 (Thread 817.8):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3cf8aa0, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=34, timeout=100, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x40a6e70, abstime=abstime@entry=0x3cf8bb0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x40a6948, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x40a6948, _mutex=<optimized out>, _abstime=0x3cf8bb0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x40a6900, millis=millis@entry=100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x0000000002377427 in ParkCommon (timo=0, ev=0x40a6900) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#7  ParkCommon (timo=0, ev=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:420
#8  Monitor::ILock (this=this@entry=0x4004ad0, Self=Self@entry=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:495
#9  0x0000000002377c16 in Monitor::lock_without_safepoint_check (this=0x4004ad0, Self=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:963
#10 Monitor::lock_without_safepoint_check (this=0x4004ad0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:969
#11 0x000000000244cc87 in SafepointSynchronize::block (thread=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/safepoint.cpp:715
#12 0x000000000237844d in ThreadStateTransition::transition_and_fence (thread=0x40a5000, from=_thread_blocked, to=_thread_in_vm) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:198
#13 ThreadStateTransition::trans_and_fence (this=<synthetic pointer>, from=_thread_blocked, to=_thread_in_vm) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:246
#14 ThreadBlockInVM::~ThreadBlockInVM (this=<synthetic pointer>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:328
#15 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:1144
#16 0x0000000001fe3864 in CompileQueue::get (this=this@entry=0x40a4dc0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.hpp:198
#17 0x0000000001fe8102 in CompileBroker::compiler_thread_loop () at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/compiler/compileBroker.cpp:1574
#18 0x00000000024f4ef1 in JavaThread::thread_main_inner (this=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/thread.hpp:1019
#19 0x00000000023ab8f2 in java_start (thread=0x40a5000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#20 0x0000000001145a88 in entry_point (self=0x40a6e70, start_routine=0x23ab740 <java_start(Thread*)>, arg=0x40a5000) at ./htl/pt-create.c:74
#21 0x0000000000000000 in ??? ()

Thread 7 (Thread 817.7):
#0  0x00000000010a9d9b in __GI__hurd_intr_rpc_mach_msg (msg=msg@entry=0x3bf7a20, 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  0x000000000114c08c in __sem_timedwait_internal (sem=0x2791680 <sig_sem>, clock_id=0, timeout=0x0) at ../sysdeps/htl/sem-timedwait.c:79
#3  0x00000000023ab2b5 in check_pending_signals (wait=wait@entry=true) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:2735
#4  0x00000000023aeb4a in os::signal_wait () at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:2759
#5  0x00000000023a7205 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  0x00000000023ab8f2 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=0x23ab740 <java_start(Thread*)>, arg=0x40a2800) at ./htl/pt-create.c:74
#9  0x0000000000000000 in ??? ()

Thread 6 (Thread 817.6):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x3af6540, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=38, timeout=100, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x4077560, abstime=abstime@entry=0x3af6650, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x4077048, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x4077048, _mutex=<optimized out>, _abstime=0x3af6650) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x4077000, millis=millis@entry=100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x0000000002377427 in ParkCommon (timo=0, ev=0x4077000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#7  ParkCommon (timo=0, ev=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:420
#8  Monitor::ILock (this=this@entry=0x4004ad0, Self=Self@entry=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:495
#9  0x0000000002377c16 in Monitor::lock_without_safepoint_check (this=0x4004ad0, Self=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:963
#10 Monitor::lock_without_safepoint_check (this=0x4004ad0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:969
#11 0x000000000244cc87 in SafepointSynchronize::block (thread=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/safepoint.cpp:715
#12 0x000000000239ff29 in ThreadStateTransition::transition_and_fence (from=_thread_blocked, to=_thread_in_vm, thread=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:198
#13 ThreadStateTransition::trans_and_fence (this=<synthetic pointer>, from=_thread_blocked, to=_thread_in_vm) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:246
#14 ThreadBlockInVM::~ThreadBlockInVM (this=<synthetic pointer>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:328
#15 ObjectMonitor::wait (this=0x10003658, millis=0, interruptible=true, __the_thread__=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/objectMonitor.cpp:1561
#16 0x00000000024bcc6f in ObjectSynchronizer::wait (obj=..., millis=0, __the_thread__=0x4075800) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:387
#17 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
#18 0x00000000080148d8 in ??? ()
#19 0x0000000003af6a10 in ??? ()
#20 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
#21 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
#22 0x0000000008006170 in ??? ()
#23 0x0000000000000000 in ??? ()

Thread 5 (Thread 817.5):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x39f65b0, option=option@entry=1282, send_size=send_size@entry=0, rcv_size=rcv_size@entry=32, rcv_name=3, timeout=100, notify=0) at ./mach/msg.c:111
#2  0x000000000114bc0b in __GI___pthread_timedblock (thread=thread@entry=0x40749c0, abstime=abstime@entry=0x39f66c0, clock_id=clock_id@entry=1) at ../sysdeps/mach/htl/pt-timedblock.c:62
#3  0x0000000001145061 in __pthread_cond_timedwait_internal (cond=0x4074548, mutex=<optimized out>, clockid=<optimized out>, abstime=<optimized out>) at ../sysdeps/htl/pt-cond-timedwait.c:164
#4  0x00000000023b37a8 in os::Linux::safe_cond_timedwait (_cond=0x4074548, _mutex=<optimized out>, _abstime=0x39f66c0) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:5321
#5  os::PlatformEvent::park (this=this@entry=0x4074500, millis=millis@entry=100) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:6050
#6  0x0000000002377427 in ParkCommon (timo=0, ev=0x4074500) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:428
#7  ParkCommon (timo=0, ev=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:420
#8  Monitor::ILock (this=this@entry=0x4004ad0, Self=Self@entry=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:495
#9  0x0000000002377c16 in Monitor::lock_without_safepoint_check (this=0x4004ad0, Self=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:963
#10 Monitor::lock_without_safepoint_check (this=0x4004ad0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/mutex.cpp:969
#11 0x000000000244cc87 in SafepointSynchronize::block (thread=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/safepoint.cpp:715
#12 0x000000000239ff29 in ThreadStateTransition::transition_and_fence (from=_thread_blocked, to=_thread_in_vm, thread=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:198
#13 ThreadStateTransition::trans_and_fence (this=<synthetic pointer>, from=_thread_blocked, to=_thread_in_vm) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:246
#14 ThreadBlockInVM::~ThreadBlockInVM (this=<synthetic pointer>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/interfaceSupport.hpp:328
#15 ObjectMonitor::wait (this=0x10002108, millis=0, interruptible=true, __the_thread__=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/objectMonitor.cpp:1561
#16 0x00000000024bcc6f in ObjectSynchronizer::wait (obj=..., millis=0, __the_thread__=0x4073000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/synchronizer.cpp:387
#17 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
#18 0x00000000080148d8 in ??? ()
#19 0x00000000039f6b28 in ??? ()
#20 0x0000000004073000 in ??? ()
#21 0x00000000039f6a80 in ??? ()
#22 0x00000000021b47b3 in InterpreterRuntime::monitorexit (thread=0x7f5a02878, elem=0x0) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/basicLock.hpp:67
#23 0x0000000008006170 in ??? ()
#24 0x0000000000000000 in ??? ()

Thread 4 (Thread 817.4):
#0  0x000000000108739c in __GI___swtch () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/swtch.S:2
#1  0x00000000011bdb59 in __GI___sched_yield () at ../sysdeps/mach/sched_yield.c:27
#2  0x000000000244b97f in SafepointSynchronize::begin () at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/safepoint.cpp:339
#3  0x0000000002552210 in VMThread::loop (this=<optimized out>) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/vmThread.cpp:513
#4  0x00000000025524bb in VMThread::run (this=0x406e000) at /part4/git/icedtea/openjdk-boot/hotspot/src/share/vm/runtime/vmThread.cpp:288
#5  0x00000000023ab8f2 in java_start (thread=0x406e000) at /part4/git/icedtea/openjdk-boot/hotspot/src/os/linux/vm/os_linux.cpp:948
#6  0x0000000001145a88 in entry_point (self=0x406f2f0, start_routine=0x23ab740 <java_start(Thread*)>, arg=0x406e000) at ./htl/pt-create.c:74
#7  0x0000000000000000 in ??? ()

Thread 3 (Thread 817.3):
Python Exception <class 'gdb.error'>: Couldn't recognize signal trampoline.
#0  <signal handler called>

Thread 2 (Thread 817.2):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/glibc-2.43/build-tree/hurd-amd64-libc/mach/mach_msg_trap.S:2
#1  0x0000000001087a0d in __GI___mach_msg (msg=msg@entry=0x1b7cf30, 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 817.1):
#0  0x000000000108732c in __GI___mach_msg_trap () at /part4/debian/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=0x200000019020, mutex=mutex@entry=0x200000019000, 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=0x200000019020, mutex=mutex@entry=0x200000019000, 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=0x200000005020 "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