Bug 43330

Summary:	runtime PM kernel panic on connecting CP210x (USB to UART)
Product:	Drivers	Reporter:	Matthias Gabriel (gabm)
Component:	USB	Assignee:	Alan (alan)
Status:	RESOLVED UNREPRODUCIBLE
Severity:	normal	CC:	alan
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.3 - 3.4	Subsystem:
Regression:	Yes	Bisected commit-id:
Attachments:	Screenshot of crashed kernel

Description Matthias Gabriel 2012-06-01 12:59:00 UTC

Created attachment 73487 [details]
Screenshot of crashed kernel

Overview: When i plug in an USB to UART Converter (CP210x) i get a kernel panic almost instantly without accessing it by myself. This Problem happend with the switch to version 3.3.1, all 3.2.x kernels (and back to 2.6.33) worked just fine! I also installed kernel 3.4 mainline from where the problem also occured!

Steps to reproduce: Plug-in a USB Stick with a CP210x converter...

Actual Results: Kernel Panic

Expected Results: Everything should work, it should load the driver

Build Date & Platform: recent kernel 3.3 and 3.4 on Arch Linux

Additional Information: This crash did not happen on kernel 3.2 and earlier. I also attached an image of the screen after the crash... i dont know how to get logfiles of the crash. Please let me know how and i will provide them!

This Bug was previously reported on Arch Linux bugs at: https://bugs.archlinux.org/task/30076

Comment 1 Alan 2015-02-19 16:54:37 UTC

Is this still present in modern kernels?