Re: Curious about Copy Fail Linux bug and any relation to FreeBSD

Ralf Mardorf <ralf-mardorf@riseup.net> writes:
> It was once claimed that FreeBSD was not affected by Meltdown and
> Spectre due to its architecture.

No, nobody ever made any such claim.  Spectre and Meltdown are CPU-level
bugs which affect _all_ software running on specific CPUs.  Until
microcode patches became available, the only mitigation was to disable
the CPU cache, which massively slows down the CPU.

Here's my own Meltdown demonstrator for FreeBSD.  You'll note that the
first commit is dated only days after the CVE was published:

    https://github.com/dag-erling/meltdown

DES
-- 
Dag-Erling Smørgrav - des@FreeBSD.org