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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> I have a strange problem with on with dbus in 1.8.20. In dbus 1.8.10 everything works fine but not with the newer version.<o:p></o:p></p>
<p class="MsoNormal"> The application coredumps in the moment I receive any property change.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> Basically, if I get a property change I do parse:<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Interface name, then next to<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Array type, then recurse<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">3.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>While Dict entry valid, first recurse<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">4.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Property name, as string, I can see is valid, next<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">5.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Check that the type is variant, it is, so far everything looks fine.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span style="mso-list:Ignore">6.<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Try to recurse because I know that the variant contains an int16 (after recurse I try to get it with dbus_message_iter_get_basic after I check that the type is valid). In the dbus_message_iter_recurse call I get a SEF FAULT.<o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black">#0 _dbus_type_reader_recurse (reader=0x7ffff3fd94e0, sub=0x7ffff3fd9490) at /usr/src/debug/dbus/1.8.20-r0/dbus-1.8.20/dbus/dbus-marshal-recursive.c:1018</span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black"> klass = <optimized out></span><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:2.0pt;margin-right:0cm;margin-bottom:2.0pt;margin-left:0cm;text-autospace:none">
<span style="font-size:10.0pt;font-family:"Segoe UI",sans-serif;color:black"> t = <optimized out></span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt"><o:p> </o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt">SEG FAULT in dbus_message_iter_recurse, line 1018 basically when is trying to dereference
<span class="keywordflow"><span style="font-size:10.0pt;font-family:"Courier New";color:#E08000;background:#FBFCFD">if</span></span><span style="font-size:10.0pt;font-family:"Courier New";color:black;background:#FBFCFD"> (reader-></span><a href="https://dbus.freedesktop.org/doc/api/html/structDBusTypeReader.html#a238bd0d5a30d8f59fd9b71c95af25563"><span style="font-size:10.0pt;font-family:"Courier New";color:#4665A2;background:#FBFCFD;text-decoration:none">klass</span></a><span style="font-size:10.0pt;font-family:"Courier New";color:black;background:#FBFCFD">-></span><a href="https://dbus.freedesktop.org/doc/api/html/structDBusTypeReaderClass.html#ad886037cd736e6f5cdbefb834b0bd5e7"><span style="font-size:10.0pt;font-family:"Courier New";color:#4665A2;background:#FBFCFD;text-decoration:none">types_only</span></a><span style="font-size:10.0pt;font-family:"Courier New";color:black;background:#FBFCFD">)</span><o:p></o:p></p>
<p class="MsoListParagraph" style="margin-left:54.0pt"><o:p> </o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt">I don’t know enough from internals of dbus to figure out what could cause this error!<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt">Is there a known error with 1.8.20 to this regard?<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt">Even a hint could be helpful because I am running out of ideas what could cause the error.<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:36.0pt"><o:p> </o:p></p>
<p class="MsoNormal">Thank you for support,<o:p></o:p></p>
<p class="MsoNormal">Florin Mihut<o:p></o:p></p>
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