[MOD] STR #4233: lpstat can become a zombie if run while cups daemon is reloaded / restarted

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it's rare, but we've seen this several times and the process will consume
100% of the cpu until it is killed.  I can always correlate this back to
when the cups daemon was reloaded


grep reload /var/log/cups/error_log
I [06/Nov/2012:11:17:57 -0500] Full reload is required.
I [06/Nov/2012:11:17:57 -0500] Full reload complete.

root@cvhaksapp1:(SL=1):(RC=0):/root
17:31:57 # ps -ef | grep lpstat
root      35617  34131  0 17:32 pts/11   00:00:00 grep lpstat
d_p101   130985 130954 99 Nov06 ?        14-06:05:34 lpstat -pcarrentry1

root@cvhaksapp1:(SL=1):(RC=0):/root
17:43:02 # top -p 130985
   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
130985 d_p101    25   0 98.2m 2448 1888 R 100.0  0.0  20535:57 lpstat

Link: https://www.cups.org/str.php?L4233
Version: 1.4.8
Attachment: https://www.cups.org/strfiles/4233/lpstat.trace