Oops when Sony USB dvdrw is disconnected
Only my Sony DRX-510UL USB dvdrw drive is a problem.
I am using hotplug and can disconnect and reconnect jumpdrives and other
USB devices with no problems.
If I shutdown the system or disconnect the Sony drive I get the
following messages:
SCSI: Device offlined - not ready after error recovery: host 0
channel 0 id 0 lum 0
sr 0:0:0:0: Illegal state transition cancel -> offline
followed by a bunch of BAD messages and then a kernel Oops.
I have lived with this problem for some weeks since so long as I don't
shut down the system or unplug the device it is working perfectly with
both cdparanoia and cdrecord as /dev/sg0.
I have posted this problem twice previously and have received no
responses. If I am way off base I will continue to live with the
problem but I do need to shut down my system occasionally - today to
install a kernel built from the latest kernel-source-2.6.8 release and
this evening when my grandson wants windows to play his computer game.
After each Oops fsck must be run on all the partitions to repair the
damage. I can avoid the problem by falling back on a 2.4.26 kernel
which has no diffilculty with the Sony device but then I have only USB1
connections.
As noted in the previous postings the Oops is avoided if I install
discorvey or discovery1 but
If discovery is installed there is no mount point for the device!
If discovery1 is installed the mount point is /dev/sr0 and the
device can only be mounted to read data cd's.
If anyone has any suggestions as how to correct the problem or what
references I should read to understand it I would greatly appreciate the
help.
Tom George
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