question on PCIE errors

Stephen Warren s-nclug at wwwdotorg.org
Sat Jan 10 05:00:16 UTC 2026


On 1/9/26 15:27, Phil Marsh wrote:
> Hi All,
> I was getting these errors on one of my servers in the kern.log file, 
> namely:
> 026-01-07T17:51:27.456870-07:00 xaxon2 kernel: pcieport 0000:00:01.3: 
> DPC: error containment capabilities: Int Msg #0, RPExt+ PoisonedTLP+ 
> SwTrigger+ RP PIO Log 6, DL_ActiveErr+
>
> Has anyone here seen this before? I suspect this is a motherboard 
> failure? I think this caused some of my software to freeze. Any ideas?

This message is an information message, printed by the DPC driver when 
it is initialized. It's not an error; it's simply reporting capabilities 
of the HW.

https://github.com/torvalds/linux/blob/v6.18/drivers/pci/pcie/dpc.c#L493




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