lpstat consumes a complete CPU in cups 1.4.8

Paul Conklin paul.conklin at cerner.com
Mon Nov 19 21:16:04 PST 2012


> > Weve notice lpstat consuming a full CPU occasionally.  Any ideas as to a cause or what we could look at?  its on RHEL 5.5 x86_64.
> >
> >   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> > 15692 d_p0165   25   0 98.9m 2472 1884 R 100.0  0.0   9397:25 lpstat
> > 26241 d_p0165   25   0 98.0m 2464 1884 R 100.0  0.0   9408:05 lpstat
> >
> here are the corresponding pids at the os level
>
> d_p0165  15692 15667 99 Nov13 ?        6-12:59:43 lpstat -plp62
> d_p0165  26241 26181 99 Nov13 ?        6-13:10:23 lpstat -ppahcass1
>
Looking through my notes for this time, and every other time this is happened, it appears it always seems to co-incide with a cups reload / restart.  should I file this as a bug for lpstat?  the last time there was a reload was on the 13th.  same date as the "zombie" lpstat's"

grep reload /var/log/cups/error_log

I [13/Nov/2012:10:08:12 -0500] Full reload is required.
I [13/Nov/2012:10:08:12 -0500] Full reload complete.
I [13/Nov/2012:10:53:22 -0500] Full reload is required.
I [13/Nov/2012:10:53:22 -0500] Full reload complete.
I [13/Nov/2012:11:04:02 -0500] Full reload is required.
I [13/Nov/2012:11:04:02 -0500] Full reload complete.







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