Re this old bug report <https://bugs.gnu.org/29446>:
I attempted to reproduce this bug on Ubuntu 18.04.3 LTS x86-64, by building pcre 8.43 by hand with "./configure --disable-jit --prefix=/tmp/prefix" and then compiling and building GNU grep master with the pcre that had JIT disabled. No luck; I couldn't reproduce the bug. If you have any advice as to how to reproduce the bug on Ubuntu or Fedora x86-64 (the systems I have easy access to) please let me know.
