FWIW I can replicate this issue on both j9.4.2/j64/linux and j9.5.0-beta7/j64avx2/linux (both running under WSL)
The same odd sorting shows up in jconsole though I couldn't crash it with `~.@:/:~ p` Running `jconsole bug.ijs < input.txt` reliably crashes every 3 to 4 runs. ----------------------------------------------------------------------------- % /opt/j9.5/bin/jconsole JVERSION Engine: j9.5.0-beta7/j64avx2/linux Build: commercial/2023-09-15T21:01:39/clang-11-0-0/SLEEF=1 Library: 9.5.4 Platform: Linux 64 Installer: j9.5 install InstallPath: /opt/j9.5 Contact: www.jsoftware.com p =. 8 2 $ 0 0 1 1 1 0 0 0 0 1 1 0 1 0 0 0 /:~ p 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 ~.@:/:~ p 0 0 1 0 1 1 1 1 /:~ p 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 ----------------------------------------------------------------------------- % /opt/j9.5/bin/jconsole bug.ijs < input.txt 5 3 1 1 % /opt/j9.5/bin/jconsole bug.ijs < input.txt JE has crashed, likely due to an internal bug. Please report the code which caused the crash, as well as the following printout, to the J programming forum. 0000000000403132: ?:0: ? 00007fb9e97b751f: ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0: ? 00007fb9e5235a81: ?:0: ? 00007fb9e5234e2c: ?:0: ? 00007fb9e523a239: ?:0: ? 00007fb9e53fa69d: ?:0: ? 00007fb9e53fa8ae: ?:0: ? 00007fb9e52355e2: ?:0: ? 00007fb9e5234e2c: ?:0: ? 00007fb9e523a239: ?:0: ? 00007fb9e53fa69d: ?:0: ? 00007fb9e53fa8ae: ?:0: ? 00007fb9e52355e2: ?:0: ? 00007fb9e5203f26: ?:0: ? 00007fb9e52355e2: ?:0: ? 00007fb9e5234e2c: ?:0: ? 00007fb9e523a239: ?:0: ? 00007fb9e522543f: ?:0: ? 00007fb9e5225231: ?:0: ? 0000000000403e40: ?:0: ? 000000000040300f: ?:0: ? 00007fb9e979ed8f: sysdeps/nptl/libc_start_call_main.h:58: __libc_start_call_main 00007fb9e979ee3f: csu/libc-start.c:392: __libc_start_main_impl 00000000004024ed: ?:0: ? ffffffffffffffff: ?:0: ? ----------------------------------------------------------------------------- ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
