Hotspot crash when using markcompact with C2 compiler enabled

[tianleq]

hsqldb and eclipse will crash when c2 is enabled

hsqldb:

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007fd73cb9f1c4, pid=7004, tid=8159
#
# JRE version: OpenJDK Runtime Environment (11.0.11) (slowdebug build 11.0.11-internal+0-adhoc..openjdk)
# Java VM: OpenJDK 64-Bit Server VM (slowdebug 11.0.11-internal+0-adhoc..openjdk, mixed mode, tiered, third-party gc, linux-amd64)
# Problematic frame:
# J 1260 c2 java.lang.StringBuffer.<init>()V java.base (7 bytes) @ 0x00007fd73cb9f1c4 [0x00007fd73cb9f140+0x0000000000000084]
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P %E" (or dumping to /tmp/mmtk-openjdk/core.7004)
#
# An error report file with more information is saved as:
# /tmp/mmtk-openjdk/hs_err_pid7004.log
#
# If you would like to submit a bug report, please visit:
#   https://bugreport.java.com/bugreport/crash.jsp
#

eclipse:

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007f8ec8b6494e, pid=22341, tid=22540
#
# JRE version: OpenJDK Runtime Environment (11.0.11) (fastdebug build 11.0.11-internal+0-adhoc..openjdk)
# Java VM: OpenJDK 64-Bit Server VM (fastdebug 11.0.11-internal+0-adhoc..openjdk, mixed mode, tiered, third-party gc, linux-amd64)
# Problematic frame:
# J 944 c2 java.lang.String.substring(II)Ljava/lang/String; java.base (58 bytes) @ 0x00007f8ec8b6494e [0x00007f8ec8b648a0+0x00000000000000ae]
#
# Core dump will be written. Default location: Core dumps may be processed with "/usr/share/apport/apport %p %s %c %d %P %E" (or dumping to /tmp/mmtk-openjdk/core.22341)
#
# An error report file with more information is saved as:
# /tmp/mmtk-openjdk/hs_err_pid22341.log
Could not load hsdis-amd64.so; library not loadable; PrintAssembly is disabled
#
# If you would like to submit a bug report, please visit:
#   https://bugreport.java.com/bugreport/crash.jsp
#