Bug 104761

Summary: call trace warn_slowpath_common / warn_slowpath_fmt / ioremap_caller ... on every boot
Product: Other Reporter: Hanno Boeck (hanno)
Component: OtherAssignee: other_other
Status: NEW ---    
Severity: normal    
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 4.2.0 Subsystem:
Regression: No Bisected commit-id:
Attachments: dmesg output

Description Hanno Boeck 2015-09-18 13:40:08 UTC 
Created attachment 187971 [details]
dmesg output

On my system the kernel prints a stack trace and some error messages on
every boot, see below.

This is currently not causing any notable malfunction, but I wonder
what this is about. I tried bisecting the issue and endet up with this
commit as the first bad commit:
15c1247953e8a45232ed5a5540f291d2d0a77665

Interestingly that's itself a revert of a previous commit.

The device is a Thinkpad X1 Carbon 2014 edition (20A7). I'll attach the dmesg output.

Here's some more info about the hw, like lspci, dmidecode, lsusb output:
http://int21.de/x1carbon/data/

(I had previously reported this to the kernel mailing list, but got no reactions)