https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=291720

Robert Clausecker <[email protected]> changed:

           What    |Removed                     |Added
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           Assignee|[email protected]            |[email protected]

--- Comment #8 from Robert Clausecker <[email protected]> ---
The problem is probably that machines without TZCNT resp. BMI1 behave
differently on one of the tzcnt instruction.  This was previously fine, but I
think the change has triggered the relevant edge case.

As a stop gap solution, could someone please comment out the line

ARCHFUNC(__stpncpy, baseline)

in lib/libc/amd64/string/stpncpy.S?  I don't have the environment to commit
right now, removing or commenting out this line effectively disables the
affected code.

I will investigate this shortly.

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