Public bug reported:

$ cat > Musicians
FALSE
First Name
FALSE
Second Name
FALSE
Third Name
<Press Ctrl+d>
$ zenity --list --title "Select musicians" --text="Some text"
--column="Select" --column="Musician" --checklist --separator="\n"
--height=480 --width=370 < Musicians

The dialogue opens. Now hit OK or Cancel.

Now, sometimes this works, but most of the time the dialogue freeze.
The terminal shows the following:

(zenity:3629): GLib-WARNING **:
/build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
flags for FD: Bad file descriptor (9)


(zenity:3629): GLib-WARNING **:
/build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
flags for FD: Bad file descriptor (9)


(zenity:3629): GLib-WARNING **:
/build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
flags for FD: Bad file descriptor (9)

and so on.

Ctrl+c in the terminal cancels the dialogue.

** Affects: zenity (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "The strace log from a test run"
   
https://bugs.launchpad.net/bugs/1094924/+attachment/3471486/+files/zenity.3405

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Packages, which is subscribed to zenity in Ubuntu.
https://bugs.launchpad.net/bugs/1094924

Title:
  Freeze: zenity --list … < FileName

Status in “zenity” package in Ubuntu:
  New

Bug description:
  $ cat > Musicians
  FALSE
  First Name
  FALSE
  Second Name
  FALSE
  Third Name
  <Press Ctrl+d>
  $ zenity --list --title "Select musicians" --text="Some text"
  --column="Select" --column="Musician" --checklist --separator="\n"
  --height=480 --width=370 < Musicians

  The dialogue opens. Now hit OK or Cancel.

  Now, sometimes this works, but most of the time the dialogue freeze.
  The terminal shows the following:

  (zenity:3629): GLib-WARNING **:
  /build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
  flags for FD: Bad file descriptor (9)

  
  (zenity:3629): GLib-WARNING **:
  /build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
  flags for FD: Bad file descriptor (9)

  
  (zenity:3629): GLib-WARNING **:
  /build/buildd/glib2.0-2.32.3/./glib/giounix.c:411Error while getting
  flags for FD: Bad file descriptor (9)

  and so on.

  Ctrl+c in the terminal cancels the dialogue.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zenity/+bug/1094924/+subscriptions

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