[Bug 886292] [NEW] Infinite loop (i.e. program hang) in QTreeWidgetItemPrivate::propagateDisabled()

Daniel Richard G. skunk at iskunk.org
Fri Nov 4 18:41:47 UTC 2011

Public bug reported:

This concerns libqtgui4 4:4.7.4-0ubuntu8 in Ubuntu Oneiric.

While using VirtualBox (i.e. virtualbox-qt), I encountered a program
hang (on performing a snapshot-restore operation). I traced this down in
a debugger to the QTreeWidgetItemPrivate::propagateDisabled() method in

So far as I can tell, the widgets must be linked in a circular manner,
because the tree propagation implemented in this method goes on forever.
(Memory consumption does not increase.)

** Affects: qt4-x11 (Ubuntu)
     Importance: Undecided
         Status: New

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  Infinite loop (i.e. program hang) in

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