As I mention around Comment 485 and later (starting Jan 22), for us we
have nearly the same computer and after setting BIOS to current idle as
you did, all of our problems disappeared. Haven't messed with it since.
That's 4 months of uptime, zero hangs, zero crashes.
I'd bet everyone who was
(In reply to Brendan Long from comment #589)
> I eventually did a from-scratch reinstall of Fedora 29 and it suddenly just
> works (for 10+ hours, I don't leave my machine on overnight). Once it
> started working, I set everything back to the defaults except for "Typical
> Current Idle" (since
(In reply to alfie from comment #542)
> Ryzen is not a CPU to run Linux onto.
YMMV but our Ryzen 2600 has been 100% rock solid stable (on 24/7) since
my last comment #493 Jan 23, 2019. All we did was the mwait and
idle:typical bios tweaks. That has worked for many/most people hitting
Sorry the pic is so horrible in attachment 280661, but at least you can
see most of the stack traces. I have a wider pic of it I can use to
transcribe the missing right-hand-side bits if needed.
By "idle: typical" bios tweak I meant the <> tweak everyone else has done.
As for which fix (1 or 2)
(In reply to Borislav Petkov from comment #489)
> Btw, is there any particular reason why you're running a 32-bit kernel?
> If not, I'd consider switching to a 64-bit kernel which is a lot more
> and widely tested.
Yes, we know. This box has been running forever, always upgraded to the
Created attachment 280661
picture of panic on screen before reboot
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Ryzen 1800X freeze - rcu_sched detected stalls on
Hi, just setup brand new Ryzen 5 2600 on Asrock AB350 PRO4 with ECC RAM
with Fedora 29 and the box froze after only 3 hours uptime, right after
we went home for the night, so it was fairly idle (< 0.2% CPU 99% of the
Luckily I had read this thread before buying, so I wasn't too shocked.
There are two solutions or workarounds that have been reliable for me,
one of which I now trust more than the other.
First, if your BIOS has the option for 'Power Supply Idle Control'
hiding somewhere in its settings (generally in a sub-menu off an
'advanced' menu), setting it to 'Typical current
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