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Re: named illegal instruction on i486

In article <>,
Dave Huang  <> wrote:
>On Apr 22, 2014, at 6:43, Christos Zoulas <> 
>> In article <>,
>> Frank Wille  <> wrote:
>>> The disassembly shows that the CPU fails on executing the instruction
>>> "lock cmpxchg...", which is only available for Pentium CPUs and higher.
>>> Any idea what went wrong? Is it a general problem in libc or was named
>>> built for >=Pentium?
>> Looks that way (our assembly files are written for >= pentium). Until
>> that gets fixes, you can turn off NAMED_USE_PTHREADS.
>I thought cmpxchg was available on the 486 (but not on the 386)...

that's cmpxchg8b...
The easiest way is to comment out __HAVE_ATOMIC64_OPS in
/usr/src/sys/arch/i386/include/types.h and rebuild everything.


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