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Entschuldigung für Englisch. Ich habe ein Problem beim Ausführen eines Java-Programms für die Interaktion mit USB-Modems, es verwendet Threads und durch die rxtx-Bibliothek stellt die Kommunikation mit bis zu 24 COM-Ports, der Fehler passiert, wenn ich genau 24 Modems über USB-Hub an Maschine angeschlossen haben. Es schließt sich und generiert die folgende log-Datei (Teil)Zugriffsverletzung - Programm in Java mit rxtx schließt automatisch
#
# A fatal error has been detected by the Java Runtime Environment:
#
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00000001800087dd, pid=6564, tid=0x00000000000017a8
#
# JRE version: Java(TM) SE Runtime Environment (8.0_112-b15) (build 1.8.0_112-b15)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.112-b15 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# C [rxtxSerial.dll+0x87dd]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
--------------- T H R E A D ---------------
Current thread (0x0000000017667000): JavaThread "Thread-32" [_thread_in_native, id=6056, stack(0x000000001e640000,0x000000001e740000)]
siginfo: ExceptionCode=0xc0000005, writing address 0x0000000000000100
Register to memory mapping:
RAX=0x0000000000000000 is an unknown value
RBX=0x00000000162e4ba0 is an unknown value
RCX=0x0000000000000002 is an unknown value
RDX=0x0000000000000000 is an unknown value
RSP=0x000000001e73eab0 is pointing into the stack for thread: 0x0000000017667000
RBP=0x000000001e73ed28 is pointing into the stack for thread: 0x0000000017667000
RSI=0x0000000016ae623a is an unknown value
RDI=0x00000000162e4d20 is an unknown value
R8 =0x0000000000000000 is an unknown value
R9 =0x0000000000000000 is an unknown value
R10=0x0000000000000006 is an unknown value
R11=0x0000000000000001 is an unknown value
R12=0x000000001e73ed30 is pointing into the stack for thread: 0x0000000017667000
R13=0x0000000019553998 is pointing into metadata
R14=0x000000001e73ed30 is pointing into the stack for thread: 0x0000000017667000
R15=0x0000000017667000 is a thread
Stack: [0x000000001e640000,0x000000001e740000], sp=0x000000001e73eab0, free space=1018k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [rxtxSerial.dll+0x87dd]
C [rxtxSerial.dll+0xaab4]
C [rxtxSerial.dll+0x213d]
C 0x0000000002738a4b
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j gnu.io.RXTXPort.open(Ljava/lang/String;)I+0
j gnu.io.RXTXPort.<init>(Ljava/lang/String;)V+125
j gnu.io.RXTXCommDriver.getCommPort(Ljava/lang/String;I)Lgnu/io/CommPort;+78
j gnu.io.CommPortIdentifier.open(Ljava/lang/String;I)Lgnu/io/CommPort;+171
j tw.modem.Porta.abrePorta()V+11
j tw.modem.Porta.run()V+50
j java.lang.Thread.run()V+11
v ~StubRoutines::call_stub
--------------- P R O C E S S ---------------
Java Threads: (=> current thread)
0x0000000016a33000 JavaThread "Thread-41" [_thread_in_native, id=6436, stack(0x000000001ecf0000,0x000000001edf0000)]
0x0000000016a32000 JavaThread "Thread-40" [_thread_in_native, id=6008, stack(0x000000001ebc0000,0x000000001ecc0000)]
0x0000000016a31800 JavaThread "Thread-39" [_thread_in_native, id=676, stack(0x000000001e950000,0x000000001ea50000)]
0x0000000016a30800 JavaThread "Thread-38" [_thread_in_native, id=6368, stack(0x0000000019190000,0x0000000019290000)]
0x0000000016a30000 JavaThread "Thread-37" [_thread_in_native, id=7160, stack(0x000000001e750000,0x000000001e850000)]
0x0000000016a2f000 JavaThread "Thread-36" [_thread_in_native, id=5372, stack(0x000000001e210000,0x000000001e310000)]
0x0000000017665800 JavaThread "Thread-35" [_thread_in_native, id=3228, stack(0x00000000188b0000,0x00000000189b0000)]
0x0000000016a2d800 JavaThread "Thread-33" [_thread_blocked, id=1060, stack(0x000000001e850000,0x000000001e950000)]
=>0x0000000017667000 JavaThread "Thread-32" [_thread_in_native, id=6056, stack(0x000000001e640000,0x000000001e740000)]
0x0000000017666000 JavaThread "Thread-31" [_thread_blocked, id=3368, stack(0x000000001e430000,0x000000001e530000)]
0x0000000017661800 JavaThread "Thread-30" [_thread_blocked, id=6312, stack(0x000000001e310000,0x000000001e410000)]
0x0000000017662800 JavaThread "Thread-29" [_thread_blocked, id=2556, stack(0x000000001e0b0000,0x000000001e1b0000)]
0x0000000017660000 JavaThread "Thread-28" [_thread_blocked, id=6584, stack(0x000000001dc60000,0x000000001dd60000)]
0x0000000017663000 JavaThread "Thread-27" [_thread_blocked, id=748, stack(0x0000000019da0000,0x0000000019ea0000)]
0x0000000017661000 JavaThread "Thread-26" [_thread_blocked, id=4080, stack(0x000000001c990000,0x000000001ca90000)]
0x0000000017664000 JavaThread "Thread-25" [_thread_blocked, id=6452, stack(0x000000001dec0000,0x000000001dfc0000)]
0x0000000017664800 JavaThread "Thread-24" [_thread_blocked, id=4544, stack(0x000000001db50000,0x000000001dc50000)]
0x0000000016a21800 JavaThread "Image Animator 3" daemon [_thread_blocked, id=6328, stack(0x0000000019850000,0x0000000019950000)]
0x0000000017626800 JavaThread "Timer-0" [_thread_blocked, id=6772, stack(0x00000000199b0000,0x0000000019ab0000)]
0x00000000176c7800 JavaThread "TimerQueue" daemon [_thread_blocked, id=5760, stack(0x0000000019700000,0x0000000019800000)]
0x00000000003be800 JavaThread "DestroyJavaVM" [_thread_blocked, id=3488, stack(0x0000000002350000,0x0000000002450000)]
0x00000000177a9800 JavaThread "AWT-EventQueue-0" [_thread_blocked, id=424, stack(0x0000000019300000,0x0000000019400000)]
0x000000001753b000 JavaThread "AWT-Windows" daemon [_thread_in_native, id=2300, stack(0x0000000018610000,0x0000000018710000)]
0x0000000016b65800 JavaThread "AWT-Shutdown" [_thread_blocked, id=7152, stack(0x0000000018490000,0x0000000018590000)]
0x0000000016b64800 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=3384, stack(0x00000000180c0000,0x00000000181c0000)]
0x000000001697a800 JavaThread "Abandoned connection cleanup thread" daemon [_thread_blocked, id=5112, stack(0x0000000017380000,0x0000000017480000)]
0x000000001683e000 JavaThread "Service Thread" daemon [_thread_blocked, id=6648, stack(0x0000000017040000,0x0000000017140000)]
0x00000000167c5000 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=7044, stack(0x0000000016e50000,0x0000000016f50000)]
0x00000000167c4800 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=5560, stack(0x0000000016c00000,0x0000000016d00000)]
0x0000000014f7a800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=3980, stack(0x0000000016300000,0x0000000016400000)]
0x0000000014f78000 JavaThread "Attach Listener" daemon [_thread_blocked, id=4684, stack(0x00000000166b0000,0x00000000167b0000)]
0x0000000014f74800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=5064, stack(0x0000000016530000,0x0000000016630000)]
0x0000000014f5a800 JavaThread "Finalizer" daemon [_thread_blocked, id=4300, stack(0x0000000016430000,0x0000000016530000)]
0x0000000014f13800 JavaThread "Reference Handler" daemon [_thread_blocked, id=1556, stack(0x0000000016170000,0x0000000016270000)]
Other Threads:
0x0000000014f0b800 VMThread [stack: 0x0000000015f80000,0x0000000016080000] [id=3788]
0x000000001686c000 WatcherThread [stack: 0x0000000017160000,0x0000000017260000] [id=6028]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
--------------- S Y S T E M ---------------
OS: Windows 7 , 64 bit Build 7601 (6.1.7601.23569)
CPU:total 4 (2 cores per cpu, 2 threads per core) family 6 model 42 stepping 7, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, clmul, ht, tsc, tscinvbit
Memory: 4k page, physical 4104836k(1314976k free), swap 8207812k(4569232k free)
vm_info: Java HotSpot(TM) 64-Bit Server VM (25.112-b15) for windows-amd64 JRE (1.8.0_112-b15), built on Sep 22 2016 21:31:56 by "java_re" with MS VC++ 10.0 (VS2010)
Die Funktion abrePorta, verantwortlich für den COM-Port zu öffnen, die in dem Bericht und ist hier.
private synchronized void abrePorta() {
try {
serialPort = (SerialPort) serialPortId.open("Porta", 6000);
serialPort.setSerialPortParams(115200, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
serialPort.setFlowControlMode(SerialPort.FLOWCONTROL_RTSCTS_IN | SerialPort.FLOWCONTROL_RTSCTS_OUT);
at = new AtCommandPort(serialPort);
} catch (Exception e) {
System.err.println(e.getMessage());
e.printStackTrace();
}
}
Wer hat eine Idee, was es sein könnte? Wäre es ein Fehler, die Kommunikation mit den Häfen herzustellen? Danke
Ich löste das Problem, indem ich die Kommunikationsschnittstelle rxtx serielle Schnittstelle zu jssc änderte. Übrigens, viel stabiler. – Everson