Red Hat Bugzilla – Bug 121896
Hard system crash on bluetooth USB dongle removal
Last modified: 2007-11-30 17:10:41 EST
Description of problem:
When I pull the bluetooth dongle (D-Link DBT-120) from the USB hole,
my system crashes. The mouse freezes, I cannot ping or telnet to box
from another networked box. Power cycle brings it back.
Version-Release number of selected component (if applicable):
It is probably somewhere in the hotplug USB bluetooth maze. All
components are from FC2-test3
Steps to Reproduce:
1. plug in dongle
2. unplug dongle
When the dongle is plugged in, its power light is lit and some
stats/properties of the dongle show up in the
'System Tools -> Info Center -> USB devices'
No crash, Info Center stats/properties go away.
This has been reported before (months ago).
The problem seems to be quite common.
I have ThinkPad T41 laptop with exactly the same symptoms.
dmesg from Oops test in single user mode is included.
Created attachment 99960 [details]
Oops in hci_usb at device removal
Kernel buzilla entry for this bug:
*** Bug 118783 has been marked as a duplicate of this bug. ***
I have done a clean install of FC2 and have tested the Bluetooth
dongle insertion and removal works fine - no crash.
Now need to test whether the Bluetooth itself works, but that is
another bug report - if needed.
Works for me..