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[Eric <eric.woodruff@xxxxxxxxx>]

I also found this info
http://www.kumar.com/blog/archives/2013/11/qt_485_timers_a.html

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https://bugs.launchpad.net/bugs/589780

Title:
  mythfrontend wastes cpu cyles trying to access /etc/localtime

Status in Mythbuntu, Ubuntu derivative focused upon MythTV:
  New

Bug description:
  Mythfrontend constantly uses about 15% CPU which is enough to cause
  heat problems in my quiet frontend box.  And it wastes power too of
  course.

  When connecting to the process with strace to see what's going on,
  here's what we get repeating as fast as the terminal can print it:

  stat("/etc/localtime", {st_mode=S_IFREG|0644, st_size=3543, ...}) = 0
  read(7, 0x13a9eb4, 4096)                = -1 EAGAIN (Resource temporarily unavailable)
  poll([{fd=3, events=POLLIN}, {fd=8, events=POLLIN}, {fd=7, events=POLLIN}, {fd=11, events=POLLIN}], 4, 13) = 0 (Timeout)
  read(7, 0x13a9eb4, 4096)                = -1 EAGAIN (Resource temporarily unavailable)
  read(7, 0x13a9eb4, 4096)                = -1 EAGAIN (Resource temporarily unavailable)
  poll([{fd=3, events=POLLIN}, {fd=8, events=POLLIN}, {fd=7, events=POLLIN}, {fd=11, events=POLLIN}], 4, 0) = 0 (Timeout)
  read(7, 0x13a9eb4, 4096)                = -1 EAGAIN (Resource temporarily unavailable)

  And /etc/localtime on my system is this:

  root@ubuntu:~# ls -l /etc/localtime
  lrwxrwxrwx 1 root root 30 2010-06-04 09:37 /etc/localtime -> /usr/share/zoneinfo/US/Central

  So it should be valid.

  Using lsof indicates nobody is using the file.

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