我需要帮助调试pstack回溯：
App_crash debugging report
Program: java_vm
Process ID: 16951
Thread ID: 22
Received signal: 11
Application Debugging Data
--------------------------
> /usr/bin/pstack 16951>
16951: java_vm
----------------- lwp# 1 / thread# 1 --------------------
ff2cced0 read (b, ffbf9d6f, 1)
fedb014c JVM_Read (b, ffbf9d6f, 1, ff18a800, ff181e38, 290a0) + dc
fe8937f8 ???????? (2915c, ff184c58, 400, fed26bd0, 20854, 10b03e0) + ffffffffffae3788
fe891664 Java_java_io_FileInputStream_read (fe8b4000, fe8b58a4, 5c0, 229c0, 104a990, 400) + 30
f900bc20 * java/io/FileInputStream.read()I+18736
f900bbc4 * java/io/FileInputStream.read()I+0
f90058b8 * java/io/DataInputStream.readInt()I+4 (line 353)
f90058b8 * sun/plugin/navig/motif/Plugin.doit()V+157 (line 173)
f9005764 * sun/plugin/navig/motif/Plugin.start(Z)V+213 (line 104)
f9000218 * StubRoutines (1)
fecdd520 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (0, 290a0, ffbfa280, ffbfa1b8, 29674, 0) + 5b8
fedb9cc4 jni_CallStaticVoidMethod (ff188a24, ff181820, 29674, 290a0, 0, 29270) + 514
0001185c main (fecef5f8, aa10d, 1, ff184c58, fedb97b0, 22e88) + 710
00010c88 _start (0, 0, 0, 0, 0, 0) + 108
..........
----------------- lwp# 22 / thread# 22 --------------------
f9014854 * java/net/HttpURLConnection.getHeaderFieldDate(Ljava/lang/String;J)J+9 (line 440)
f90058fc * java/net/URLConnection.getExpiration()J+4 (line 502)
f90058fc * sun/plugin/cache/CachedFileLoader.download()Z+93 (line 301)
f90057a8 * sun/plugin/cache/CachedFileLoader.load()Lsun/plugin/cache/CachedFile;+26 (line 119)
f9005874 * sun/plugin/cache/FileCache.get(Ljava/net/URL;)Lsun/plugin/cache/CachedFile;+52 (line 136)
f9005874 * sun/plugin/cache/PluginCacheHandler.get(Ljava/net/URI;Ljava/lang/String;Ljava/util/Map;)Ljava/net/CacheResponse;+22 (line 87)
f9005874 * sun/net/www/protocol/http/HttpURLConnection.plainConnect()V+54 (line 743)
f9005764 * sun/net/www/protocol/http/HttpURLConnection.connect()V+1 (line 716)
f9005764 * sun/net/www/protocol/http/HttpURLConnection.getInputStream()Ljava/io/InputStream;+139 (line 960)
f9005874 * java/net/HttpURLConnection.getResponseCode()I+16 (line 367)
f90058b8 * sun/applet/AppletClassLoader.getBytes(Ljava/net/URL;)[B+18 (line 313)
f9005874 * sun/applet/AppletClassLoader.access$100(Ljava/net/URL;)[B+1 (line 50)
f9005874 * sun/applet/AppletClassLoader$1.run()Ljava/lang/Object;+77 (line 197)
f9000218 * StubRoutines (1)
fecdd520 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (1, 2f26c8, f707f134, f707f038, f707f138, 0) + 5b8
feceda04 JVM_DoPrivileged (2f2784, 1, 2f28b0, 4, c, 2f28ac) + 560
fe88ee84 Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedExceptionAction_2Ljava_security_AccessControlContext_2 (2f2784, f707f450, f707f4dc, f707f4d8, f0, b801fa) + 14
f900bc20 * java/security/AccessController.doPrivileged(Ljava/security/PrivilegedExceptionAction;Ljava/security/AccessControlContext;)Ljava/lang/Object;+0
f900bbc4 * java/security/AccessController.doPrivileged(Ljava/security/PrivilegedExceptionAction;Ljava/security/AccessControlContext;)Ljava/lang/Object;+0
f9005874 * sun/applet/AppletClassLoader.findClass(Ljava/lang/String;)Ljava/lang/Class;+107 (line 187)
f9005874 * java/lang/ClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+43 (line 307)
f9005874 * sun/applet/AppletClassLoader.loadClass(Ljava/lang/String;Z)Ljava/lang/Class;+36 (line 145)
f9005874 * java/lang/ClassLoader.loadClass(Ljava/lang/String;)Ljava/lang/Class;+3 (line 252)
f9005874 * sun/applet/AppletClassLoader.loadCode(Ljava/lang/String;)Ljava/lang/Class;+105 (line 659)
f9005874 * sun/applet/AppletPanel.createApplet(Lsun/applet/AppletClassLoader;)Ljava/applet/Applet;+83 (line 723)
f9005874 * sun/plugin/AppletViewer.createApplet(Lsun/applet/AppletClassLoader;)Ljava/applet/Applet;+9 (line 1813)
f9005874 * sun/applet/AppletPanel.runLoader()V+65 (line 652)
f9005764 * sun/applet/AppletPanel.run()V+13 (line 326)
f9005c2c * java/lang/Thread.run()V+11 (line 595)
f9000218 * StubRoutines (1)
fecdd520 __1cJJavaCallsLcall_helper6FpnJJavaValue_pnMmethodHandle_pnRJavaCallArguments_pnGThread__v_ (1, 2f26c8, f707fc18, f707fb38, f707fc1c, 0) + 5b8
fecf4f74 __1cJJavaCallsMcall_virtual6FpnJJavaValue_nGHandle_nLKlassHandle_nMsymbolHandle_5pnGThread__v_ (5964, 2f26c8, 2f2898, 2f28a4, 2f2c84, cd026210) + 18c
fecf4dd0 __1cMthread_entry6FpnKJavaThread_pnGThread__v_ (cd026210, 2f26c8, ff197cf4, d5812af8, 2f2898, ff1977e0) + 12c
fecf4c54 __1cKJavaThreadDrun6M_v_ (2f26c8, 4c00, ff18639c, 0, 6400, ff16e000) + 2d0
ff03dabc __1cG_start6Fpv_0_ (2f26c8, ff188a5c, ff1818ec, 0, 340c, ff16e000) + 200
任何指针都会有所帮助......
有一些关于接收信号11的链接，但不是很清楚。它讨论了分段错误等，但是有人可以更深入地了解如何解决这个问题。我认为已经安装了正确的JDK版本等。我们试过了。不知道还有什么可能是错的？