Bug 43330 - runtime PM kernel panic on connecting CP210x (USB to UART)
runtime PM kernel panic on connecting CP210x (USB to UART)
Product: Drivers
Classification: Unclassified
Component: USB
All Linux
: P1 normal
Assigned To: Alan
Depends on:
  Show dependency treegraph
Reported: 2012-06-01 12:59 UTC by Matthias Gabriel
Modified: 2016-02-24 14:03 UTC (History)
1 user (show)

See Also:
Kernel Version: 3.3 - 3.4
Tree: Mainline
Regression: Yes

Screenshot of crashed kernel (311.36 KB, image/jpeg)
2012-06-01 12:59 UTC, Matthias Gabriel

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?

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