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opoplawski
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acroread crashing as plugin

Feb 3, 2012 2:04 PM

When I press the back button in Firefox when reading a PDF, acroread generally crashes.  Lot's of errors are logged to ~/.xsession-errors.  I suspect that last one it the critical one:

 

(acroread:7024): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GObject'

 

(acroread:7024): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `<invalid>'

 

(acroread:7024): GLib-GObject-CRITICAL **: g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

 

(acroread:7024): GLib-GObject-WARNING **: invalid uninstantiatable type `<invalid>' in cast to `GObject'

 

(acroread:7024): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `<invalid>'

 

(acroread:7024): GLib-GObject-CRITICAL **: g_signal_handlers_disconnect_matched: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed

 

(acroread:7024): Gtk-CRITICAL **: IA__gtk_widget_destroy: assertion `GTK_IS_WIDGET (widget)' failed

 

Running on Fedora 16 with nspluginwrapper:

 

AdobeReader_enu-9.4.6-1.i486

nspluginwrapper-1.4.4-3.fc16.i686

 

At this point nspluginwrapper is hung too and I cannot read anymore PDFs in Firefox without killing npviewer.bin or restarting Firefox.

 

Filed https://bugzilla.redhat.com/show_bug.cgi?id=787058 as well.

1434 Views   3 Replies   Latest reply: swt2c, Feb 10, 2012 7:44 PM
 
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  • opoplawski
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    1. opoplawski,
    Feb 3, 2012 2:21 PM   in reply to opoplawski
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    Looks like something is setting npviewer.bin to ignore SIGCHLD before launching acroread, but is this in npviewer.bin or in nppdf.so?

     

    7697  rt_sigaction(SIGCHLD, {SIG_IGN, [SEGV RT_5 RT_6], SA_STACK|0x4648d8}, {SIG_DFL, [], 0}, 8) = 0

    7697  <... clone resumed> child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb76d2b28) = 7708

    7697  rt_sigaction(SIGCHLD, {SIG_DFL, [], 0},  <unfinished ...>

    7697  --- {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=7708, si_status=0, si_utime=524, si_stime=218} (Child exited) ---

     

    7697 is npviewer.bin, 7708 is acroread

     
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  • swt2c
    Currently Being Moderated
    2. swt2c,
    Feb 8, 2012 7:48 PM   in reply to opoplawski
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    I have been trying to resolve this very bug for a while, working with the maintainer of nspluginwrapper.  You can check out the URL below for the nspluginwrapper bug report.

     

    https://github.com/davidben/nspluginwrapper/issues/33

     

    I've also tried contacting Adobe for some help in reading the debug output from acroread.  No luck yet.

     
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  • swt2c
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    3. swt2c,
    Feb 10, 2012 7:44 PM   in reply to opoplawski
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    You may also be interested in the Ubuntu bug report.  Someone there has written a wrapper for acroread that works around this problem.

     

    https://bugs.launchpad.net/ubuntu/+source/acroread/+bug/571247

     
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