Backtrace for Java thread at early JVM startup - was: Hotspot segfaulting on Linux SPARC

[John Paul Adrian Glaubitz]

On 04/15/2018 09:28 AM, Alan Bateman wrote:
>> Now, in order to figure out what's actually wrong, it would be handy to get
>> a backtrace of the Java thread to understand where the invalid value for
>> loadFactor, -1.2197928E-12, comes from.
> Can you try `java -Xlog:init=debug --version` ?

This actually provides a backtrace:

glaubitz at deb4g:/srv/glaubitz/hs$ ./build/linux-sparcv9-normal-server-fastdebug/jdk/bin/java -Xlog:init=debug --version
Error occurred during initialization of boot layer
java.lang.module.FindException: Error reading module: /srv/glaubitz/hs/build/linux-sparcv9-normal-server-fastdebug/jdk/modules/java.management
        at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:349)
        at java.base/jdk.internal.module.ModulePath.scanDirectory(ModulePath.java:283)
        at java.base/jdk.internal.module.ModulePath.scan(ModulePath.java:231)
        at java.base/jdk.internal.module.ModulePath.scanNextEntry(ModulePath.java:189)
        at java.base/jdk.internal.module.ModulePath.find(ModulePath.java:153)
        at java.base/jdk.internal.module.SystemModuleFinders$1.lambda$find$0(SystemModuleFinders.java:214)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at java.base/jdk.internal.module.SystemModuleFinders$1.find(SystemModuleFinders.java:215)
        at java.base/jdk.internal.module.ModuleBootstrap.boot(ModuleBootstrap.java:204)
        at java.base/java.lang.System.initPhase2(System.java:1976)
Caused by: java.lang.module.InvalidModuleDescriptorException: Illegal load factor: -1.2197928E-12
        at java.base/jdk.internal.module.ModuleInfo.invalidModuleDescriptor(ModuleInfo.java:1092)
        at java.base/jdk.internal.module.ModuleInfo.read(ModuleInfo.java:134)
        at java.base/jdk.internal.module.ModulePath.readExplodedModule(ModulePath.java:688)
        at java.base/jdk.internal.module.ModulePath.readModule(ModulePath.java:319)
        ... 9 more
glaubitz at deb4g:/srv/glaubitz/hs$

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913