Ryzen system, occasional lockups still in 2018?

Originally Posted by Daedra When I was running a 1600x as a stop gap before I built my current machine I was also having lockups. The rcu_nocbs fixed it, but I would still get very rare, but occasional lockups. For me it was my 2666mhz ram. Even though it passed memtest and gave no apparent errors. I had to drop it all the way down to 2133mhz to get the system stable.

I've just done this. Will see if it makes any difference.

Zenstates.py -l reports the following, without me running any commands:

P0 - Enabled - FID = 90 - DID = 8 - VID = 48 - Ratio = 36.00 - vCore = 1.10000
P1 - Enabled - FID = 8C - DID = A - VID = 58 - Ratio = 28.00 - vCore = 1.00000
P2 - Enabled - FID = 84 - DID = C - VID = 68 - Ratio = 22.00 - vCore = 0.90000
P3 - Disabled
P4 - Disabled
P5 - Disabled
P6 - Disabled
P7 - Disabled
C6 State - Package - Disabled
C6 State - Core - Disabled

Does that mean I've successfully disabled the relevant *stuff* in the BIOS?

Originally Posted by bifferos Zenstates.py -l reports the following, without me running any commands: P0 - Enabled - FID = 90 - DID = 8 - VID = 48 - Ratio = 36.00 - vCore = 1.10000 P1 - Enabled - FID = 8C - DID = A - VID = 58 - Ratio = 28.00 - vCore = 1.00000 P2 - Enabled - FID = 84 - DID = C - VID = 68 - Ratio = 22.00 - vCore = 0.90000 P3 - Disabled P4 - Disabled P5 - Disabled P6 - Disabled P7 - Disabled C6 State - Package - Disabled C6 State - Core - Disabled Does that mean I've successfully disabled the relevant *stuff* in the BIOS?

Seems right. I get slightly different values, but similar output:
P0 - Enabled - FID = 78 - DID = 8 - VID = 3A - Ratio = 30.00 - vCore = 1.18750
P1 - Enabled - FID = 87 - DID = A - VID = 50 - Ratio = 27.00 - vCore = 1.05000
P2 - Enabled - FID = 7C - DID = 10 - VID = 6C - Ratio = 15.50 - vCore = 0.87500

(Ryzen 1700)

Those figures were the 3700X, so I think a difference would be expected.
I checked the voltage at the socket (247v), and I also checked the power consumption (50W). The PSU is 500W 80+ Bronze it should be plenty to power this system.
I think next step will be to try different operating systems. I have a 500GB spinning disk, so I'm going to put that in, and install Ubuntu on it. After that I'll try Windows!

You should be fine with Windows + AMD drivers, I would imagine. I built a 3600X gaming system about a year ago, and after initial setup, it's been trouble-free.

Sure, but I have to rule out the hardware somehow. Typing this now on Windows as I install Debian on WSL2. If this works for a week I'll try some different Linux Distros.

Edit1: I got tired of using Windows 10 after about three days. I never got any lock-ups in those three days, so I switched to Mint. This took longer to reproduce the problem, and I went a couple of days but still got another lock. Youtube froze, kept on playing the audio but not video, then after (presumably) getting to the end of some buffer the system locked completely. I'm beginning to wonder if this is related to my GeForce GT 710.

Edit2: After running Linux mint for a good week I think I'm stable with Linux Mint + NVidia drivers. With the Nouveau drivers I would lock up fairly frequently. So I think that's the issue on one of my systems, and I'm finally lock-up free on that. On the other system with Radeon graphics Linux mint continues to lock up albeit less often. Since the driver manager offers no option to install proprietary AMD drivers, I haven't done so yet, but that's the next step to try to cure the lockups there.

So is disabling C-states still necessary with the 5.18 kernel? I forgot to do it when I rebooted a day ago, and my computer didn't lock. I'm still getting the firmware bug message about C-states, though.

If you have a Zen1 CPU (most 1xxx series), you will still want to disable c-states. Even with the latest kernels, I can still have system hangs when the system sits idle for several hours.

I have been able to get away with c-states enabled with Zen1+ and up.

Originally Posted by akimmet If you have a Zen1 CPU (most 1xxx series), you will still want to disable c-states. Even with the latest kernels, I can still have system hangs when the system sits idle for several hours. I have been able to get away with c-states enabled with Zen1+ and up.

Gotcha. Of course, before I started disabling them, I could go weeks without a hang.