> Because I kept the “metadata” away from the chunks themselves, and because I used a binary “buddy” layout for sub-page-sized allocations, I could detect some

> Because I kept the “metadata” away from the chunks themselves, and because I used a binary “buddy” layout for sub-page-sized allocations, I could detect some of the most common mistakes. > First I thought “We’re not having any of that” and made phkmalloc abort(2) on any wrong usage. Next time I rebooted my laptop fsck(8) aborted, and left me in single user mode until I could fix things with a floppy disk. I love everything about this anecdote.