JDK-8203659 : Crash with: java -Xlog:*=trace -version
  • Type: Bug
  • Component: hotspot
  • Sub-Component: runtime
  • Affected Version: 11
  • Priority: P4
  • Status: Closed
  • Resolution: Duplicate
  • Submitted: 2018-05-22
  • Updated: 2018-05-30
  • Resolved: 2018-05-30
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JDK 12
12Resolved
Related Reports
Duplicate :  
JDK-8204055 - SIGSEGV in java -XX:
Description
java -Xlog:*=trace -version
Segmentation fault (core dumped)

I looked with gdb, it is here:

$ gdb /opt/jdk-11-b11/bin/java
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Reading symbols from /opt/jdk-11-b11/bin/java...(no debugging symbols found)...done.
(gdb) r -Xlog:*=trace -version
Starting program: /opt/jdk-11-b11/bin/java -Xlog:*=trace -version
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff7fda700 (LWP 23092)]

Thread 2 "java" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff7fda700 (LWP 23092)]
0x00007ffff6ab6469 in StringUtils::similarity(char const*, unsigned long, char const*, unsigned long) ()
   from /opt/jdk-11-b11/lib/server/libjvm.so
(gdb) bt
#0  0x00007ffff6ab6469 in StringUtils::similarity(char const*, unsigned long, char const*, unsigned long) ()
   from /opt/jdk-11-b11/lib/server/libjvm.so
#1  0x00007ffff6817eae in LogTag::fuzzy_match(char const*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#2  0x00007ffff680fd99 in LogSelection::parse(char const*, outputStream*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#3  0x00007ffff6817644 in LogSelectionList::parse(char const*, outputStream*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#4  0x00007ffff6808523 in LogConfiguration::parse_log_arguments(char const*, char const*, char const*, char const*, outputStream*)
    () from /opt/jdk-11-b11/lib/server/libjvm.so
#5  0x00007ffff6809662 in LogConfiguration::parse_command_line_arguments(char const*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#6  0x00007ffff61cdbb0 in Arguments::parse_each_vm_init_arg(JavaVMInitArgs const*, bool*, Flag::Flags) ()
   from /opt/jdk-11-b11/lib/server/libjvm.so
#7  0x00007ffff61ce971 in Arguments::parse_vm_init_args(JavaVMInitArgs const*, JavaVMInitArgs const*, JavaVMInitArgs const*) ()
   from /opt/jdk-11-b11/lib/server/libjvm.so
#8  0x00007ffff61d0211 in Arguments::parse(JavaVMInitArgs const*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#9  0x00007ffff6b4884d in Threads::create_vm(JavaVMInitArgs*, bool*) () from /opt/jdk-11-b11/lib/server/libjvm.so
#10 0x00007ffff66b7e62 in JNI_CreateJavaVM () from /opt/jdk-11-b11/lib/server/libjvm.so
#11 0x00007ffff7793d04 in JavaMain () from /opt/jdk-11-b11/bin/../lib/jli/libjli.so
#12 0x00007ffff79a76ba in start_thread (arg=0x7ffff7fda700) at pthread_create.c:333
#13 0x00007ffff72c941d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Comments
Closing as dup of 8204055.
30-05-2018
To fix the crash: diff -r adec398d9051 src/hotspot/share/utilities/stringUtils.cpp --- a/src/hotspot/share/utilities/stringUtils.cpp Mon May 21 21:27:12 2018 -0700 +++ b/src/hotspot/share/utilities/stringUtils.cpp Tue May 22 22:23:23 2018 -0700 @@ -45,6 +45,10 @@ double StringUtils::similarity(const char* str1, size_t len1, const char* str2, size_t len2) { size_t total = len1 + len2; + if (len1 < 1 || len2 < 1) { + return 0.0; + } + size_t hit = 0; for (size_t i = 0; i < len1 - 1; i++) { for (size_t j = 0; j < len2 - 1; j++) { ------------- With the above patch, the output is: $ java -Xlog:*=trace -version [0.140s][error][logging] Invalid tag '' in log selection. Invalid -Xlog option '-Xlog:*=trace', see error log for details. Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. This seems to be the same output as from JDK 10: $ jdk10/bin/java -version java version "10" 2018-03-20 Java(TM) SE Runtime Environment 18.3 (build 10+46) Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+46, mixed mode) $ jdk10/bin/java -Xlog:*=trace [0.002s][error][logging] Invalid tag '' in what-expression. Invalid -Xlog option '-Xlog:*=trace' Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit.
30-05-2018