[Bug 148454]

[Lennart-poettering]

BTW, if somebody cares enough: this bug could be fixed properly now as
Kay's patch got merged into .38.

There's now a file "/sys/class/tty/tty0/active" which you can read to
get the current VT. And you can poll() for it and will get POLLPRI every
time the VT changes.

That said, given that CK is being retired anyway sooner or later (merged
into systemd) I do wonder if it is really worth working on this for now.

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https://bugs.launchpad.net/bugs/148454

Title:
  console-kit-daemon spawns too many threads

Status in ConsoleKit:
  Confirmed
Status in “consolekit” package in Ubuntu:
  Opinion
Status in “consolekit” package in Fedora:
  Invalid

Bug description:
  since upgrading to gutsy beta htop shows about fifty processes like
  the following

  pid user pri ni virt res shr s cpu% mem% time+ command
  7582 root 23 0 7456 2016 1336 s 0.0 0.2 0:00.00 /usr/sbin/console-kit-deamon

  It maybe the case that console-kit-daemon starts a thread for each
  console that can theoretically exist. On Linux
  (/usr/include/linux/vt.h) MAX_NR_CONSOLE is defined to be 63.

  Note that those processes do not show up in DEFAULT top or ps output
  --BUT-- if you run either of those tools with the -H parameter, so as
  to display all the threads of a process, then they do show up.

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