Red Hat Bugzilla – Bug 136997
Removal of USB CDRW causes kernel panic
Last modified: 2007-11-30 17:10:52 EST
Description of problem:
Kernel panic when removing USB CDRW drive.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Plug in USB CD drive
2. Unplug USB CD drive
Actual Results: Kernel OOPS. See attatchment.
Expected Results: Safe removal.
Created attachment 105710 [details]
Was it mounted at the time? (either manually, or by HAL)
*** Bug 137377 has been marked as a duplicate of this bug. ***
The same Oops with 2.6.10-rc1, seems to work fine with 2.6.10-rc1-bk14
(tried multiple plug in/outs in a row). However hal in FC3 doesn't
work with 2.6.10-rc1-bk14, it will not recognize USB devices :(
*** Bug 138732 has been marked as a duplicate of this bug. ***
*** Bug 138095 has been marked as a duplicate of this bug. ***
Hm, scsi bug, not a usb-storage bug.
Can you re-test this with the latest rhel4 kernel at:
My father has almost the same problem, except that it seems to only
happen with the latest (681) kernel, and not 678 or earlier. Also,
the Oops happens upon shutdown, not immediately upon removing the USB
device. If the device is left attached until after shutdown, the Oops
doesn't happen. Below is a system log attachment. The device is
pulled at 14:07:31, and then the shutdown is started at 14:07:36, when
the Oops happens. The machine hangs, and at 14:08:09 a Ctrl-Alt-Del
successfully reboots the machine (sometimes the machine is totally
hung and this doesn't work). His machine is FC3 with all standard
Created attachment 108471 [details]
Oops from system log
Still had issues with older releases, but the latest RHEL4 test kernel
(2.6.9-1.906_EL) works like a charm. Thank You davej! Running on it
Closing out based on feedback from comment 16.