With a clean 9-dev fastdebug build (hotspot: a02911828e48, nashorn: 68a026de1201), this is reproducible on Mac OS X:

$ jjs ../test/script/basic/run-octane.js -scripting -- zlib --runtime nashorn --verbose --iterations 1
[nashorn] [zlib] loading 'zlib' [zlib.js]... /Users/haupt/JPG/dev/nashorn/make/../test/script/basic/../external/octane/zlib.js
[nashorn] [zlib] loading 'zlib' [zlib-data.js]... /Users/haupt/JPG/dev/nashorn/make/../test/script/basic/../external/octane/zlib-data.js
[nashorn] [zlib] running 'zlib' for 1 iterations of no less than 5 seconds
# To suppress the following error report, specify this argument
# after -XX: or in .hotspotrc: SuppressErrorAt=/output.cpp:1613
#
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (/Users/haupt/JPG/dev/hotspot/src/share/vm/opto/output.cpp:1613), pid=76326, tid=26371
# assert(cb->insts_size() < 500000) failed: method is unreasonably large
#
# JRE version: Java(TM) SE Runtime Environment (9.0) (build 1.9.0-internal-fastdebug-haupt_2015_10_05_09_23-b00)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (1.9.0-internal-fastdebug-haupt_2015_10_05_09_23-b00, mixed mode, tiered, compressed oops, g1 gc, bsd-amd64)
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /Users/haupt/JPG/dev/nashorn/make/hs_err_pid76326.log

[error occurred during error reporting , id 0xb]

#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
Current thread is 26371
Dumping core ...
Abort trap: 6