Trouble with utild

CA641912 · ‎08-30-2012

We have several HP-UX servers. On one rx8620, 16 single core CPUs, running 11.23, used as a Data Protector Cell, I see utild running 100% CPU as reported by top, when total idle CPU is 93%. I killed (-9) the utild process, inittab restarted it, and it was low CPU for a while. Now some 6 hours later, it is back to 100% CPU, using all of 1 CPU.

I have looked at other HP-UX servers, both 11.23 and 11.32, and utild does not run more than 1% as reported by top. None of these others servers have more than 8 CPUs.

Is this some strange side effect of 16 CPUs?

If not, how can I figure out what might be causing this strange behavour?

Snipits from top:

Load averages: 0.10, 0.09, 0.09
292 processes: 244 sleeping, 48 running

CPU TTY    PID USERNAME PRI NI   SIZE    RES STATE    TIME %WCPU %CPU COMMAND
15   ?    8707 root     241 20 16880K 3772K run    418:52 99.97 99.80 utild
9   ?      68 root     152 20 50328K 44736K run   6806:45 2.89 2.89 vxfsd
13   ?    8533 root     152 0 72748K 16716K run   1353:02 0.78 0.78 perfd
0 pts/2 29296 u43447   178 20 29180K 1408K run      0:00 1.15 0.49 top

Dennis Handly · ‎08-31-2012

There was a problem with utild and dld.sl on PA systems.

Yours could be related to:

http://h30499.www3.hp.com/t5/Databases/Does-anyone-use-hpux11-3-Sybase-Itanium-Vnx/m-p/5594917/