Epic Games Error Code Dp-07

[Courtland Boland]

I have experienced another MCE-related reboot since then. Now I've gone into the BIOS and disabled extended power saving features during idle (and set it to normal instead). I think this feature is another name for AMD Cool'n'Quiet ( ), which could be the reason for the reboots according to various discussion threads I have found.

I had the same problem and it turned out to be a symptom of the Ryzen "performance marginality" (a.k.a. segfault) bug... Try to execute the tester script, should it fail just RMA the processor to AMD (directly, not to the shop you bought it from) and they'll send you a good one.

This is a pre-built HP PC; I am not sure if AMD would actually exchange the CPU if you have not bought it from them directly. And Windows 10 runs perfectly on it, so I am not sure if HP would see this as a hardware issue. It's not really their problem if I (also) want to run Linux in addition to Windows.

But I have also read somewhere that someone RMA'ed his Ryzen and still experienced crashes. As I have not seen any gcc crashes on this system in Linux, I am inclined to think that the "performance marginality" (crashes when compiling with gcc) and the reboots when idle are two separate issues.

And frankly if these Ryzen crashes happen only once a month or so I think I could live with them. That would be roughly on par with AMD graphics driver-related crashes, so not a biggie. Ext4 can handle that just fne...

Anyway, in my case normal compilations with make -j were perfectly OK, so this is not a good indicator; only ryzen-test compilation load was triggering crashes.
Till now I've witnessed 4 broken Ryzen RMAs, all successful in terms of both ryzen-test and idle crashes, so I got convinced it is reliable; but this surely is only anecdotal.

If these reboots should remain a problem, maybe I will get myself an 1800X and put the 1700 on eBay. Supposedly the RMA process takes several weeks, which is a long time to spend without a working PC. I mean I still have the old PC, but how can you go back from 16 threads to 2 threads? It's impossible!

I have also seen a type of freeze with this machine, this time without an MCE error in the logs, so I suspect it is the graphics card. It seems to be triggered by fast scrolling e.g. in the web browser. It might be related to rebooting directly from Windows into Linux, so now I always make sure to shut down Windows and do a Linux cold boot. I've had this happen with Windows before where it puts hardware into a weird state that Linux cannot properly recover from.

I think it's the same MCE error everyone is geting with Ryzen on Linux (bea0000000000108), but I have not looked up what it means exactly. I am not even sure where these codes are documented. Perhaps in the AMD CPU docs somewhere?

This might be the same as the lockups I have experienced: screen goes black, cannot SSH in any more, have to turn the computer off. Are you dual-booting with Windows or is your system Linux-only? And which graphics card are you using?

I have seen neither MCE reboots nor mystery lockups since the BIOS setting change. The lockups were pretty easy to trigger with furious scrolling e.g. in the web browser. So I hope everything is stable now.

I'm experiencing similar "mystery lockups". The screen goes black (or simply freezes) and I have to turn the computer off. Strangely I cannot find any error messages in the logs. My system: Ryzen 1600, Asrock AB350M Pro4, Nvidia Geforce 1050, 16 GB RAM. For now I've disabled Cool 'n' Quiet in the BIOS and I'm booting with processor.max_cstate=1 kernel-parameter, but it's too early to say whether this workaround actually works.

EDIT: I just had a freeze/lockup one minute after writing this post. Same symptoms as above: Frozen screen, system doesn't react anymore and I can't ssh into it. So disabling Cool 'n' Quiet and booting with processor.max_cstate=1 didn't fix it for me. No obvious error messages in "journalctl --boot=-1":

I Also have major issues started yesterday with ryzen, 1600x here as well.
My problems is random segfaults. I had this rigg sincce late summer with no problem at all untill now. So i wonder why it started just like that.
Also had the rigg frozen two times now. just random freeze.

Some updates from me: I spent most of the last weekend trying to find a solution for the freezes/lockups with my system. I found out that I'm most probably affected by this bug: Bug 196683 - Random Soft Lockup on new Ryzen build

The discussion suggested many different workarounds:
- Recompile the kernel with "CONFIG_RCU_NOCB_CPU=y" and adding the kernel parameter "rcu_nocbs=0-x" where x is the number of threads of your CPU -1 (i.e. 11 in my case for a Ryzen 1600): Did'nt work for me Though I'm not 100% sure if I compiled the kernel correctly, is there any way to check this?
- Disabling C6 in BIOS (I couldn't find a way to do this in my BIOS?), via kernel parameter and via a tool like ryzen-stabilizator: Didn't work for me
- Disabling Cool 'n' Quiet in BIOS: Didn't work for me
- Keeping the CPU under load. I'm using "stress --cpu 1" to keep one CPU active all the time. This is so far the only way to prevent my system from crashing, but this is a really crude workaround. Works for me EDIT: Had a freeze with this. So even this doesn't work for me.

Thanks for reporting back Fredo! I will not try those things then. I will probably want an RMA myself. I'm inexperienced in this though: how long time does it usually take until you get a new one? How long time after buying the CPU can I still RMA? I am based in Belgium.

I am currently testing myself all of those at once, and will report back if it survives. For 1), I had an option "Disable Global C-states" or something in the BIOS/UEFI. I also had something like "Deeper sleep" disabled by default. 3) was also disabled on the BIOS/UEFI. 2) I am doing through ryzen-stabilizator, which I updated to do that as well, apart from disabling C6. and 4) I am using the testing 4.15 kernel with

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Use these Maytag front load washer error codes to help diagnose your problem. These may not be all Error Codes that will show for your model See your Owner's Manual for the Error Codes for your specific model.

The washer will not be able to spin out water with the excess suds. When "Sud" or "Sd" is displayed, the washer automatically extends the rinse time to remove the excess suds. During this time, the washer pauses the tumbling and adds water for additional rinsing. This pause allows the bubbles in the suds to break. This pause and rinsing are necessary and may occur several times to eliminate the suds.

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