Mailinglist Archive: opensuse-factory (742 mails)

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Re: [opensuse-factory] amd ryzen low load hard freeze kernel
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Hi again,

for people who have also stability problems:

i think my systems now run stable:

a) as widely found by google, ryzen linux systems have some problems:
1) high load bug, -> only solution change processor
2) low load bug, -> mainboard + bios and software related.

b) low load bug see:
https://bugzilla.kernel.org/show_bug.cgi?id=196683

in short words (i have written this also at the link above)

for
amd ryzen 7 1700
asrock ab350m
bios 4.4 and 4.5
opensuse tumbleweed (at the moment = 20180320-0)

1) check for a processor without high load bug ("kill ryzen script"
has to be modified to use this sources:
gcc7-7.1.1+r250819-1.1.src.rpm
gmp-6.1.2-2.6.src.rpm
isl-0.18-1.6.src.rpm
mpc-1.0.3-1.114.src.rpm
mpfr-3.1.5-4.2.src.rpm
to run fine with opensuse tumbleweed)

2) use bios 4.4 or 4.5 (no higher at the moment available)
set in bios: /advanced/amdcbs/zen-common-options/"power supply idel control"
changed this from "auto" to "typical"

3) /etc/default/grub add at the end of GRUB_CMDLINE_LINUX_DEFAULT=
pcie_aspm=off
start: grub2-mkconfig -o /boot/grub2/grub.cfg

for more details read the link.

simoN

www.becherer.de
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