(on Knoppix 5.0DVD) plugging second usb-storage device removes the first one!

[Russell Senior <seniorr@aracnet.com>]

I am having a problem with hotplugging two usb storage devices.  This
is using the new Knoppix 5.0DVD recently released.  I'd like to fix
or, barring that, workaround it.  Here's the outline of what happens:

  a) i plug a usb-storage device;

  b) a desktop icon for the device appears, i get a dialog box asking
     me what I want to do with the device (open or "do nothing"), I
     say do nothing;
 
  c) from a shell, i manually mount the device: 
      # mount /dev/sda1 /media/sda1

  d) /proc/mounts shows /dev/sda1 mounted

  e) i plug a second usb-storage device;

  f) the desktop icon for the first device disappears for a few
     moments, then it reappears with a second desktop icon for the second
     usb-storage device.  I get two more dialog boxes asking me what I
     want to do with the devices.  I look in /proc/mounts and my
     /dev/sda1 mount is gone.  Ouch.

I've attached an strace to udevd during this procedure, you can find
it at:

  <http://www.personaltelco.net/~russell/strace-udevd.log>

On line 6887, I see a recv(4, "remove@/class/scsi-device/[...]
which I presume is udevd receiving a request to remove the /dev/sda1.
How do I figure out where that remove request is coming from?
  
Any other clues about debugging this?

Thanks!


-- 
Russell Senior         ``I have nine fingers; you have ten.''
seniorr@aracnet.com


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