I was following the instructions from
 https://wikis.oracle.com/display/HotSpotInternals/PrintAssembly

On recent jdk9-dev forest, with libhsdis-amd64.so from either Kenai, or self-built, running any application with
-XX:+PrintAssembly -XX:+PrintSignatureHandlers (both seem to be required) crashes the VM. Seems to
always happen in C1 compiler thread:

# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/home/shade/trunks/jdk9-dev/hotspot/src/share/vm/code/relocInfo.cpp:151), pid=2445, tid=140111280850688
# assert(limit == __null || limit <= nm->code_end()) failed: in bounds

hs_err_* stacktrace:

Current thread (0x00007fb70c16a000): JavaThread "C1 CompilerThread3" daemon [_thread_in_vm, id=1112, stack(0x00007fb6c59dd000,0x00007fb6c5ade000)]

Stack: [0x00007fb6c59dd000,0x00007fb6c5ade000], sp=0x00007fb6c5adb060, free space=1016k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x103360d] VMError::report_and_die()+0x15d
V [libjvm.so+0x735d4b] report_vm_error(char const*, int, char const*, char const*)+0x7b
V [libjvm.so+0xe81858] RelocIterator::initialize(nmethod*, unsigned char*, unsigned char*)+0x168
V [libjvm.so+0xd3b619] nmethod::reloc_string_for(unsigned char*, unsigned char*)+0x59
V [libjvm.so+0xd3bfe9] nmethod::print_code_comment_on(outputStream*, int, unsigned char*, unsigned char*)+0x449
V [libjvm.so+0x7c949c] decode_env::handle_event(char const*, unsigned char*)+0x13c
C [libhsdis-amd64.so+0x58779] decode_instructions+0x74c
J 12 C1 java.lang.String.indexOf(II)I (70 bytes) @ 0x00007fb6fcb1d610 [0x00007fb6fcb1d7e0+0xfffffe30]

[error occurred during error reporting (printing native stack), id 0xe0000000]


Current CompileTask:
C1: 609 12 3 java.lang.String::indexOf (70 bytes)


Happens very frequently in fastdebug. No crashes in release, but that might be just because we stripped the sanity checks there.