# PCIe Bus Error

When there are PCI Express bus errors like
```
Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0: AER:   TLP Header:  34000000 e1000010 89148914 00000000
Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID)
Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0:   device [8086:464d] error status/mask=00100000/00010000
Oct 05 11:26:19 pc16209.psi.ch kernel: pcieport 10000:e0:06.0:      [20] UnsupReq          (First)
```
you might try with disabling **Active State Power Management** (ASPM) in the kernel.

To do so set in Hiera

```
base::enable_pcie_aspm: false
```

the apply it with `puppet agent -t` and reboot.


Source: https://www.thomas-krenn.com/de/wiki/PCIe_Bus_Error_Status_00001100_beheben