[Libreoffice-bugs] [Bug 113225] New: LibreOffice 5.4.1.2 crashes when checking for updates ( OpenGL )

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=113225

            Bug ID: 113225
           Summary: LibreOffice 5.4.1.2 crashes when checking for updates
                    ( OpenGL )
           Product: LibreOffice
           Version: 5.4.1.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: xiscofauli at libreoffice.org

Created attachment 137076
  --> https://bugs.documentfoundation.org/attachment.cgi?id=137076&action=edit
crashreport's trend

On Friday 13, October, 2017 the update checker for enabled for version 5.4.1.2
to update to 5.4.2.2.
Since that day, the number of crashes has doubled. See attached image

Crashreports:
http://crashreport.libreoffice.org/stats/signature/OpenGLContext::AcquireFramebuffer(OpenGLTexture%20const%20&)

http://crashreport.libreoffice.org/stats/signature/WinOpenGLContext::isCurrent()

http://crashreport.libreoffice.org/stats/signature/WinOpenGLContext::makeCurrent()

Discussion in IRC:
moggi> x1sc0: ask cloph if he enabled around that time the update check for
5.4.1.2
<mmeeks> x1sc0: interesting ...
<moggi> x1sc0: they are all in the update checker UI code, therefore I suspect
that the non-main thread rendering happening there is causing the crash and the
enabling of the update check causes the crashes
<mmeeks> x1sc0: interesting - looks like we're loading the 'update' image in a
thread.
<mmeeks> x1sc0: is there a bug report for that you can CC me and quikee on ?
<x1sc0> let me check
* mmeeks wonders if we had Caolan's new epoxy work in 5.4.x
<moggi> yes
<mmeeks> there was some fix in this area to that recently; but perhaps not.
<moggi> mmeeks: looks like there might be nothing holding the SolarMutex
<mmeeks> moggi: yep - createInstance() looks like it needs something there ...
* mmeeks suspects the epoxy problem more though
<x1sc0> cloph confirmed the update check was enabled last week
<mmeeks> eg.     Resolves: tdf#107730 ensure per-thread
epoxy_handle_external_wglMakeCurrent
* erAck és conegut com a erAck_away
<mmeeks> x1sc0: so - I hope it is already fixed by Caolan: with
45cfa386e312bf70c84fb971a9f7d541353b4809
<mmeeks> x1sc0: but that is not in 5.4.1.2
<mmeeks> x1sc0: of course moggi is right it needs a lock there, but that's
prolly less problematic =)
<mmeeks> the crash-address of 0x0 is indicative of a  null ptr de-reference.

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