I'm running into this same issue but I've created a phprc (rather, I edited the file that was already there) and have the commands listed here
I've been somewhat patient but even tried "killall -9 php54.cgi". Also, I'm on DreamPress (which I CURL purged) and PageSpeed (remember me! :P). Any chance something at the application level is cached?
ok... forget it. I had a typo.