usbd driver with HP LaserJet 2200 connected on /dev/unlpt0.
turning off (disconnecting) the printer at the same time with running
process with opened file handle "/dev/unlpt0" causes fall-off of the
process to "Defunct" state. It cannot be killed and the device cannot
be used again even if reconnected before next restart of the system.
How-To-Repeat: Running process with opened file handle to /dev/unlpt0 (ulpt0 makes the same)
Turning off the printer (or disconnecting)
-> dmesg : ulpt0: at hub0 port1 (addr 2) disconnected
AND process becomes defunct. Cannot be killed (I/O usage).
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Status: In Progress Changed: (is less than) 2014-06-01
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