Dangling SwAccessibleContext -> SwAccessibleMap
mstahl at redhat.com
Thu Feb 18 11:43:48 UTC 2016
On 17.02.2016 17:40, Stephan Bergmann wrote:
> <http://ci.libreoffice.org/job/lo_tb_master_linux_dbg/5478/> crashed in
> JunitTest_sw_unoapi_1 with a SEGV as below. Smells like the
> SwAccessibleContext (base class of SwAccessibleParagraph)'s m_pMap
> (pointing at an SwAccessibleMap) is dangling. The lifecycle of any
> SwAccessibleMap instances is controlled by SwViewShellImp (member
> m_pAccessibleMap, deleted during dtor).
> It wouldn't even easily work to notify all SwAccessibleContext instances
> registered at SwViewShellImp::m_pAccessibleMap when the latter is
> destroyed (so that the former could clear their m_pMap members), as what
> gets registered in the map are not the SwAccessibleContext instances
> themselves, but their GetFrame() objects (cf.
> Any friend of the Writer and/or accessibility code got any idea?
sounds familiar - you probably have this message in the log too?
"Frame map should be empty after disposing the root frame"
for some reason a recursive dispose of the root frame's accessibility
object left some SwAccessible corresponding to a paragraph still alive.
this has been happening for years but unfortunately it is rather hard to
reproduce and would need some extra logging to track down...
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