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[xmlvm-users] BoehmGC stop the world stops the world...
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From: Markus H. <ma...@ti...> - 2011-07-14 20:06:49
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Hi, My application triggers the BoehmGC stop the world collection, and the application hangs after that. If I am in debug mode I can see that a SIGUSR1 signal is received, but resuming the program doesn't do anything. I have attached all stack traces of all running threads at the moment the SUGUSR1 comes in. I am totally clueless here, since I don't have any knowledge of the threading and BoehmGC internals. This occurs while downloading a big file via the java socket API. After disabling the GC, the download works, but downloading with GC on, always hangs. Thread 7 is the download Thread. Thread 5 is a blocking UDP Socket that waits for incoming data. I tried to implement UDP support and reused stuff from apache harmony. Maybe I'm doing something wrong there, too... Would be great if anyone could poke me in the right direction, where to look for a solution... Anyway here are my stacktraces: Thread 1 #0 0x906fcafa in mach_msg_trap () #1 0x906fd267 in mach_msg () #2 0x025e3d86 in __CFRunLoopServiceMachPort () #3 0x02540e74 in __CFRunLoopRun () #4 0x02540840 in CFRunLoopRunSpecific () #5 0x02540761 in CFRunLoopRunInMode () #6 0x02ca91c4 in GSEventRunModal () #7 0x02ca9289 in GSEventRun () #8 0x01396c93 in UIApplicationMain () #9 0x00113ff5 in org_xmlvm_iphone_UIApplication_main___java_lang_String_1ARRAY_java_lang_Class_java_lang_Class (n1=0x0, n2=0x0, n3=0x7595de0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/org_xmlvm_iphone_UIApplication.m:636 #10 0x003719ca in com_arindal_client_mobile_iphone_ArindalMain_main___java_lang_String_1ARRAY (n1=0x0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_mobile_iphone_ArindalMain.m:213 #11 0x00371a0e in main (argc=1, argv=0xbffff0a0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_mobile_iphone_ArindalMain.m:231 Thread 3 #0 0x90723382 in kevent () #1 0x0283df36 in _dispatch_mgr_invoke () #2 0x0283e333 in _dispatch_queue_invoke () #3 0x0283e593 in _dispatch_worker_thread2 () #4 0x90722781 in _pthread_wqthread () #5 0x907225c6 in start_wqthread () Thread 4 WebThread #0 0x906fcafa in mach_msg_trap () #1 0x906fd267 in mach_msg () #2 0x025e3d86 in __CFRunLoopServiceMachPort () #3 0x02540e74 in __CFRunLoopRun () #4 0x02540840 in CFRunLoopRunSpecific () #5 0x02540761 in CFRunLoopRunInMode () #6 0x04505903 in RunWebThread () #7 0x9072a259 in _pthread_start () #8 0x9072a0de in thread_start () Thread 5 #0 0x0041dc7c in selectRead (hysocketP=0x756a9d8, uSecTime=-1, accept=1) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_org_apache_harmony_luni_platform_OSNetworkSystem.m:206 #1 0x0041eb6b in org_apache_harmony_luni_platform_OSNetworkSystem_receiveDatagramDirect___java_io_FileDescriptor_java_net_DatagramPacket_long_int_int_int_boolean (me=0x755fd10, n1=0xcfea2b8, n2=0xcec4760, n3=217455616, n4=0, n5=1024, n6=0, n7=0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_org_apache_harmony_luni_platform_OSNetworkSystem.m:738 #2 0x0041ea1f in org_apache_harmony_luni_platform_OSNetworkSystem_receiveDatagram___java_io_FileDescriptor_java_net_DatagramPacket_byte_1ARRAY_int_int_int_boolean (me=0x755fd10, n1=0xcfea2b8, n2=0xcec4760, n3=0xcfea108, n4=0, n5=1024, n6=0, n7=0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_org_apache_harmony_luni_platform_OSNetworkSystem.m:708 #3 0x0035e8d2 in org_apache_harmony_luni_net_PlainDatagramSocketImpl_receive___java_net_DatagramPacket (me=0xcebdc80, n1=0xcec4760) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/org_apache_harmony_luni_net_PlainDatagramSocketImpl.m:1436 #4 0x003e8957 in java_net_DatagramSocket_receive___java_net_DatagramPacket (me=0xcfc3370, n1=0xcec4760) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_net_DatagramSocket.m:1869 #5 0x000b48e4 in com_arindal_client_net_UDPHandler_1_run__ (me=0xcf1e940) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_net_UDPHandler_1.m:286 #6 0x000611aa in java_lang_Thread_run0___long (me=0x7593ea0, n1=-1339224064) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_lang_Thread.m:2451 #7 0x0041c8cc in threadRunner (me=0x7593ea0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_java_lang_Thread.m:27 #8 0x0043b62d in GC_inner_start_routine (sb=0xb02d0f58, arg=0xcf1e920) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_start.c:59 #9 0x00439eb9 in GC_call_with_stack_base (fn=0x43b5c6 <GC_inner_start_routine>, arg=0xcf1e920) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/misc.c:1491 #10 0x0043cd24 in GC_start_routine (arg=0xcf1e920) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_support.c:1415 #11 0x9072a259 in _pthread_start () #12 0x9072a0de in thread_start () Thread 6 #0 0x000b3f86 in com_arindal_client_net_UDPHandler_2_run__ (me=0xcf1e5c0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_net_UDPHandler_2.m:239 #1 0x000611aa in java_lang_Thread_run0___long (me=0x7593e58, n1=-1338691584) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_lang_Thread.m:2451 #2 0x0041c8cc in threadRunner (me=0x7593e58) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_java_lang_Thread.m:27 #3 0x0043b62d in GC_inner_start_routine (sb=0xb0352f58, arg=0xcf1e5a0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_start.c:59 #4 0x00439eb9 in GC_call_with_stack_base (fn=0x43b5c6 <GC_inner_start_routine>, arg=0xcf1e5a0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/misc.c:1491 #5 0x0043cd24 in GC_start_routine (arg=0xcf1e5a0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_support.c:1415 #6 0x9072a259 in _pthread_start () #7 0x9072a0de in thread_start () Thread 7 #0 0x907c343a in sem_wait$UNIX2003 () #1 0x0043bcb8 in GC_stop_world () at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_stop_world.c:505 #2 0x004286c8 in GC_stopped_mark (stop_func=0x427b1d <GC_never_stop_func>) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/alloc.c:606 #3 0x0042839f in GC_try_to_collect_inner (stop_func=0x427b1d <GC_never_stop_func>) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/alloc.c:458 #4 0x0042985d in GC_collect_or_expand (needed_blocks=1, ignore_off_page=0, retry=0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/alloc.c:1234 #5 0x00429b5e in GC_allocobj (gran=3, kind=1) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/alloc.c:1321 #6 0x00433a98 in GC_generic_malloc_inner (lb=20, k=1) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/malloc.c:126 #7 0x00433c35 in GC_generic_malloc (lb=20, k=1) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/malloc.c:166 #8 0x00434164 in GC_malloc (lb=20) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/malloc.c:276 #9 0x0000f5f8 in __NEW_org_xmlvm_runtime_XMLVMArray () at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/org_xmlvm_runtime_XMLVMArray.m:305 #10 0x0041c427 in org_xmlvm_runtime_XMLVMArray_createSingleDimensionWithData___java_lang_Class_int_java_lang_Object (n1=0x7561d70, n2=11, n3=0xce695a0) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_org_xmlvm_runtime_XMLVMArray.m:111 #11 0x0041c3e9 in org_xmlvm_runtime_XMLVMArray_createSingleDimension___java_lang_Class_int (n1=0x7561d70, n2=11) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_org_xmlvm_runtime_XMLVMArray.m:104 #12 0x00426579 in XMLVMArray_createSingleDimension (type=0x7561d70, size=11) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/iphone/xmlvm.m:267 #13 0x003ef484 in java_lang_Integer_toString___int (n1=2695203) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_lang_Integer.m:1742 #14 0x000bbfdf in java_lang_String_valueOf___int (n1=2695203) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_lang_String.m:4377 #15 0x0037a8cb in java_io_PrintStream_println___int (me=0x7590fe0, n1=2695203) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_io_PrintStream.m:1707 #16 0x0007aed5 in com_arindal_client_gui_GameView_2_setSubTaskValue___int (me=0xcfc3050, n1=2695203) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_gui_GameView_2.m:428 #17 0x001e0f55 in com_arindal_client_controller_UpdateController_DownloadThread_run__ (me=0xcf34d20) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_controller_UpdateController_DownloadThread.m:604 #18 0x003df4c8 in com_arindal_client_controller_UpdateController_fetchAndDecodeFile___java_lang_String_java_lang_String_com_arindal_client_share_dtsfile_KeyFile (me=0xcf56540, n1=0xce18570, n2=0xce18420, n3=0xcf0cc10) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_controller_UpdateController.m:617 #19 0x003defcd in com_arindal_client_controller_UpdateController_updateFull___java_lang_String_com_arindal_client_share_dtsfile_KeyFile_java_lang_String_int (me=0xcf56540, n1=0xd029618, n2=0xcf0cc10, n3=0xd05fae0, n4=711) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_controller_UpdateController.m:484 #20 0x003decba in com_arindal_client_controller_UpdateController_updateFile___java_lang_String_com_arindal_client_share_dtsfile_KeyFile_java_lang_String_int_int (me=0xcf56540, n1=0xd029618, n2=0xcf0cc10, n3=0xd05fae0, n4=0, n5=711) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_controller_UpdateController.m:400 #21 0x00086b8a in com_arindal_client_gui_GameView_3_run__ (me=0xd053330) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/com_arindal_client_gui_GameView_3.m:298 #22 0x000611aa in java_lang_Thread_run0___long (me=0x7593c60, n1=-1341648896) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/java_lang_Thread.m:2451 #23 0x0041c8cc in threadRunner (me=0x7593c60) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/app/native_java_lang_Thread.m:27 #24 0x0043b62d in GC_inner_start_routine (sb=0xb0080f58, arg=0xcf56650) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_start.c:59 #25 0x00439eb9 in GC_call_with_stack_base (fn=0x43b5c6 <GC_inner_start_routine>, arg=0xcf56650) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/misc.c:1491 #26 0x0043cd24 in GC_start_routine (arg=0xcf56650) at /Users/markus/Documents/workspace/com.arindal/client/mobile/iphone/target/dist/../build/xcode/src/lib/boehmgc/pthread_support.c:1415 #27 0x9072a259 in _pthread_start () #28 0x9072a0de in thread_start () |
