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stack commented on HBASE-2039: ------------------------------ I removed -XX:-ReduceInitialCardMarks from list of JVM args when running with G1 and got the below pretty quickly. # # A fatal error has been detected by the Java Runtime Environment: # # Internal Error (nmethod.cpp:2013), pid=31341, tid=1093945664 # Error: guarantee(cont_offset != 0,"unhandled implicit exception in compiled code") # # JRE version: 7.0-b83 # Java VM: Java HotSpot(TM) 64-Bit Server VM (17.0-b09 mixed mode linux-amd64 ) # An error report file with more information is saved as: # /home/stack/0.20-head/hs_err_pid31341.log # # If you would like to submit a bug report, please visit: # http://java.sun.com/webapps/bugreport/crash.jsp # I reported it. Adding back in the option, I seem to get the pretty-good stability again. i got the above option from this email: http://mail.openjdk.java.net/pipermail/hotspot-gc-use/2010-February/000512.html > G1 GC issues > ------------ > > Key: HBASE-2039 > URL: https://issues.apache.org/jira/browse/HBASE-2039 > Project: Hadoop HBase > Issue Type: Bug > Reporter: stack > > Lets keep an issue where we report on g1 issues. Lets keep list of crashes > we see. > I filed an issue up on bug parade. Lets see if it becomes actual bug. Below > I note version of vm and the type of crash (Internal Error > (nmethod.cpp:1981), pid=32319..... Its a 'fatal error'). It happens for me > after 5-10 minutes when a loading test. Same thing each time. > G1 in 1.6 seems plain broke; crashes on use of stuff in concurrent utils > package. > Date Created: Thu Dec 10 13:33:04 MST 2009 > .. > Synopsis: Running G1 GC, crashes with " Internal Error (nmethod.cpp:1981), > pid=32319..." > Description: > FULL PRODUCT VERSION : > java version "1.7.0-ea" > Java(TM) SE Runtime Environment (build 1.7.0-ea-b77) > Java HotSpot(TM) 64-Bit Server VM (build 17.0-b05, mixed mode) > FULL OS VERSION : > Fedora Core release 6 (Zod) > EXTRA RELEVANT SYSTEM CONFIGURATION : > Here are the JVM args: > -XX:+HeapDumpOnOutOfMemoryError -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.