Re: [Oops report]: 2.6.0-test1-ac1 oops in umount mass-storage device

From: Serge A. Suchkov (ss@e1.bmstu.ru)
Date: Fri Jul 25 2003 - 03:53:00 EST

> Hi,
>
> Today I have oops in 2.6.0-test1-ac1, described below.
> I have USB plugged CF card Reader/Writer with CF card inside.
> I'm mount this device as SCSI /dev/sda1 device
>
> Next actions I'm comment by my dmesg output ...
>
> 1) Eject CF card from CF Reader without umount, and insert CF in digital

I'm sorry. Oops was take place not after _eject_ CF, but after _disconnect_
USB CF reader/writer...

I wrote small script, which demonstrate described problem...

------- test-usb-storage.sh -----------
#!/bin/bash
SCSI_DEVICE=/dev/sda1
MOUNT_POINT=/mnt
IS_USB_STORAGE_DEVICE_UP=`cat /proc/bus/usb/devices | grep Driver=usb-storage`
IS_MOUNT=`mount | grep $MOUNT_POINT`

if [ "$IS_MOUNT" != "" ]
then
 echo "$MOUNT_POINT mark as already mounted ..."
 echo $IS_MOUNT
 exit
fi

if [ "$IS_USB_STORAGE_DEVICE_UP" = "" ]
then
 echo "USB storage device not found ..."
 exit
fi

mount $SCSI_DEVICE -t auto $MOUNT_POINT -o user

if [ $? != 0 ]
then
 echo "Can't mount $SCSI_DEVICE";
 exit
fi

echo Disconnect USB storage device now...
while [ "$IS_USB_STORAGE_DEVICE_UP" != "" ]
do
sleep 1
IS_USB_STORAGE_DEVICE_UP=`cat /proc/bus/usb/devices | grep Driver=usb-storage`
done

umount $MOUNT_POINT
echo $?k !
------- test-usb-storage.sh ----------- 

-- 
/SS
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