http://qa.mandrakesoft.com/show_bug.cgi?id=3574





------- Additional Comments From [EMAIL PROTECTED]  2003-07-07 01:01 -------
> The reason is that it is not 
> supermounts fault that many apps do not close the files properly, so 
supermount 
> thinks something is actively using the file and refuses to let you remove 
it. 
 
In that case, how does "eject /dev/cdrom" work just fine ? Does eject close 
all the relevant files properly thus allowing supermount to remove the disk ? 
Please clarify this. 
 
And yes, the bug is still valid. 

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assigned_to: [EMAIL PROTECTED]
status: UNCONFIRMED
creation_date: 
description: 
I have all updates applied on stock mdk-9.1 install. I have supermount and 
scsi-emulation 
enabled.  
 
I have two IDE CD drives: 
hdc (scsi-emulated) 
hdd (no scsi-emulation). 
The CD ejection problem is reproducble for both drives. 
 
Steps to reproduce the problem 
--------------------------------------------- 
  
1. Put a CD in the drive and close the tray by pressing the CD eject button (the 
hardware  
button present on the drive). Press the eject button again and verify that the CD is 
ejected as 
expected. Close the CD tray again. 
 
2. Lets say that the CD drive device is /dev/cdrom (mounted on /mnt/cdrom2). Run the 
command: 
        ls /mnt/cdrom2 
Now, press the CD eject button, the CD is ejected fine. Close the CD tray. 
 
3. Run a command to read /dev/cdrom as:  
                cat /dev/cdrom 
 
4. Wait for the cat command in previous step to end (or you may interrupt the cat 
command if 
it takes too long). 
 
5. a) Now press the CD eject button. Nothing happens. 
    b) If I use "eject /dev/cdrom", the CD is ejected fine. 
 
6. a) If I skip step 5b and run "ls /mnt/cdrom2", then the CD files are listed just 
fine. 
    b) After step 6a, if I press the CD eject button, it ejects normally. 
 
This strange behavior is 100% reproducible. It seems that every time the "cat" command 
is  
used after an "ls" command, it prevents a manual hardware ejection of the CD. After 
cat, using  
the "ls" command sets things right. 
 
Further investigation revealed that if I manually umount /mnt/cdrom2 then this problem 
 
disappears. If I manually re-mount /mnt/cdrom2, the problem reappears. Obviously,  
supermount is not handling things correctly since the problem is related to mounting.  
  
No error messages in dmesg or /var/log/* can be found that explains this odd behavior. 
 
I reported the same bug in bug 2103 but that bug has been marked resolved as "fixed", 
even 
though the bug still exists in mandrake-9.1 final.

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