freebsd stable - Jan 2018 - Ryzen issues on FreeBSD ?

Don Lewis truckman at FreeBSD.org wrote on
Sat Jan 20 02:35:40 UTC 2018 :
> The only real problem with the old CPUs is the random segfault problem
> and some other random strangeness, like the lang/ghc build almost always
> failing.

At one time you had written
( https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221029
comment #103 on 2017-Oct-09):

QUOTE
The ghc build failure seems to be gone after upgrading the a
more recent 12.0-CURRENT.  I will try to bisect for the fix
when I have a chance.
END QUOTE

Did that not pan out? Did you conclude it was
hardware-context specific?


==Mark Millard
marklmi26-fbsd at yahoo.com
( markmi at dsl-only.net is
going away in 2018-Feb, late)

On 20 Jan, Mark Millard wrote:
> Don Lewis truckman at FreeBSD.org wrote on
> Sat Jan 20 02:35:40 UTC 2018 :
> 
>> The only real problem with the old CPUs is the random segfault problem
>> and some other random strangeness, like the lang/ghc build almost
always
>> failing.
> 
> 
> At one time you had written
> ( https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221029
> comment #103 on 2017-Oct-09):
> 
> QUOTE
> The ghc build failure seems to be gone after upgrading the a
> more recent 12.0-CURRENT.  I will try to bisect for the fix
> when I have a chance.
> END QUOTE
> 
> Did that not pan out? Did you conclude it was
> hardware-context specific?
I was never able to reproduce the problem.  It seems like it failed on
the first ports build run after I replaced the CPU.  When I upgraded the
OS and ports, the build succeeded.  I tried going back to much earlier
OS and ports versions, but I could never get the ghc build to fail
again.  I'm baffled by this ...