Getting a boot message regarding the subject and referring to user mode driver.
What action is needed to utilize the errant shpchp?
Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit! X-ray confirms Iam spineless!
ACPI support, typically. If you disable ACPI (or don't have a proper hardware implementation of it) then you might see the shpchp error. You can safely ignore that error, or disable it by adding shpchp to your hotplug blacklist.