On Tue, Mar 31, 2020 at 9:24 AM Kamil Paral <kparal(a)redhat.com> wrote:
On Tue, Mar 31, 2020 at 4:06 PM Brandon Nielsen <nielsenb(a)jetfuse.net> wrote:
>
> Recently I've had cause to run memtest on some relatively modern systems
> (Haswell, Haswell refresh, and Kaby Lake R). On all three systems the
> memtest86+ provided with the Fedora Workstation Live media failed.
>
> On the Haswell and Haswell refresh machines it froze shortly after
> starting. It didn't matter if the test was run in 'Safe Mode', or with
SMP.
I can confirm the issues. I have Haswell (i5 4570):
* With F32 Workstation Beta, memtest freezes at 35% (of the first test) reliably if I
keep the defaults (which defaults to SMP:disabled) or force safe mode with F1. When I
force SMP using F2, it reboots quickly.
* With F31 Workstation, memtest reboots at 35% (of the first test) reliably if I keep the
defaults (SMP: disabled) or force safe mode. When I force SMP, it reboots quickly.
* With F30 Workstation, memtest seems to work fine (I waited only a few minutes) in all
configurations.
With a libvirt VM, memtest seems to work fine (I waited only a few minutes) with safe
mode with F30-F32, but reboots immediately in default configuration or SMP (F30-F32).
I used to have problems with memtest when I forced SMP in the past, but never with the
default or safe mode configuration. Something changed recently (F31) for the worse.
Interestingly, memtest always reports the same version (5.01) so I wonder what affects
this.
gcc version?
--
Chris Murphy