Re: [PLUG] Question about AMD Ryzen 3000x rdrand bug

[Steve Litt via plug <plug@lists.phillylinux.org>]

Hi Bhaskar,

So do you think your reinstall removed a package that was somehow
messing things up via conflict with other software or with the hardware?

This was an intermittent problem, as evidenced by the fact that it
worked "until I attempted to download an application which froze almost
immediately with a long chain of  0xFFFFFFFF notations." Is it possible
the problem's still there but hasn't symptomed yet?

What made you so sure this was a "rdrand" problem?

Thanks,

SteveT

Steve Litt 
Autumn 2020 featured book: Thriving in Tough Times
http://www.troubleshooters.com/thrive



On Mon, 7 Dec 2020 15:10:59 -0500
"K.S. Bhaskar via plug" <plug@lists.phillylinux.org> wrote:

> Randall –
> 
> I successfully did a fresh install of Lubuntu 20.10 on that machine
> this morning. It worked as advertised.
> 
> Regards
> – Bhaskar
> 
> On Sun, Dec 6, 2020 at 11:05 AM K.S. Bhaskar <ksbhaskar@gmail.com>
> wrote:
> 
> > It so happens that I will be setting up Ubuntu 20.10 on a Ryzen 7
> > 3700X this week. I will let you know how it goes.
> >
> > Regards
> > – Bhaskar
> >
> > On Sat, Dec 5, 2020 at 8:42 PM Randall Detra via plug <  
> > plug@lists.phillylinux.org> wrote:  
> >  
> >> Hello everyone,
> >>
> >> I have been using a Ryzen 5 3600 CPU with Ubuntu 20.04.1
> >> successfully 	
> >>
> >> I know this arises from a flaw in the CPU "rdrand" call which used
> >> to make booting Linux impossible.  My understanding is Ubuntu came
> >> up with a work around for this bug so most of the time a user,
> >> such as myself, will never notice it.  I also know reflashing the
> >> BIOS may correct the issue but I have acquired a 3rd generation
> >> Ryzen 7 3700x CPU and would like to install it with the assumption
> >> AMD has finally fixed this bug in their product.
> >>
> >> I am a much much more casual hobbyist with Linux than, perhaps,
> >> many of you and would prefer to simply replace the CPU rather than
> >> reflash the BIOS.  Does anyone know if this bug still exists in
> >> newer AMD products?
> >>
> >> Of course, if I have to reflash the BIOS, I will do so!
> >>
> >> Randall
> >>
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