https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235060
--- Comment #16 from [email protected] ---
Well, the only thing which is similar to reproducible make a CPU firmware hang
up (so that it does not boot anything any more until the power cord is
removed!) and to reproducible make a copy process hang up, that I know are
these old school copy protection of games DVDs in the 2000 era. Some of these
copy protections also included nasty bit patterns, that hung the copy process
up. As FreeBSD images do not have copy protection, the next best thing that
might produce nasty bit patterns is the Intel management engine (or the AMD
security processor, resprectively).
My overall point is, that this bit patterns most probably are a generell
security problem. Especially that those bit patterns might designed to operate
some nasty switches in the Minix OS of Intel CPUs. If you FreeBSD guys want to
provide a security OS, you should go after it. At least to the point, how to
keep them away from your own iso images. I mean, security is the main reason
why people use FreeBSD instead of Linux, isn't it?
If you provided me a tool to search for nasty bit patterns, I will try to
assist your search. However, I am not programmer, thus pretty stupid in these
kind of things, I am afraid.
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