AMD EPYC "DPC Containment event" Errors


Well-Known Member
Feb 11, 2010

Just updated one of our nodes last night to the latest Kernel 4.15.18-16-pve (for the SACK patches) and I started getting a massive amount of log spam to /var/log/messages and dmesg.
The message is:
Jun 24 22:56:00 orthrus4 kernel: [  233.086556] dpc 0000:30:03.1:pcie010: DPC containment event, status:0x1f00 source:0x0000
There's approximately 50/second.

So far I've managed to silence it by adding "pcie_aspm=off" to the /etc/default/grub boot parameters but I'm unsure of what other effects that will have.

This didn't occur on the older 4.15.18-9-pve kernel.


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