[Bug 282445] Wrong stack() info in dtrace

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282445

--- Comment #3 from Mark Johnston <markj@FreeBSD.org> ---
To be clear, I do think this behaviour in dtrace is slightly wrong, but again,
it's hard to handle this correctly.  hwpmc has the same problem.  Looking at
Linux's stack unwinder, while it's considerably more complex than ours, I can't
see how it handles this either.  Does bpftrace have the same problem?  Maybe
the stack offsets can be fixed up in userspace.

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