<html>
<body>
<div style="font-family: Verdana, Arial, Helvetica, Sans-Serif;">
<table bgcolor="#f9f3c9" width="100%" cellpadding="8" style="border: 1px #c9c399 solid;">
<tr>
<td>
This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/107339/">http://git.reviewboard.kde.org/r/107339/</a>
</td>
</tr>
</table>
<br />
<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This review has been submitted with commit e9e907290bddcd9121e8a9e937198568699bc698 by Simeon Bird to branch master.</pre>
<br />
<p>- Commit</p>
<br />
<p>On November 16th, 2012, 12:56 a.m., Simeon Bird wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" style="background-image: url('http://git.reviewboard.kde.org/media/rb/images/review_request_box_top_bg.png'); background-position: left top; background-repeat: repeat-x; border: 1px black solid;">
<tr>
<td>
<div>Review request for Nepomuk.</div>
<div>By Simeon Bird.</div>
<p style="color: grey;"><i>Updated Nov. 16, 2012, 12:56 a.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"> Fix convoluted crash on deletion of Query::Folder.
Sequence of events could be:
1. Folder::~Folder called.
2. SearchRunnable->cancel called => SearchRunnable->m_folder = 0.
3. Deletes all connections.
4. deleteLater called again, during destructor (is this ever safe?)
5. SearchRunnable::run called => since m_folder is zero, returns and
deletes SearchRunnable without setting m_folder -> SearchRunnable to
zero.
6. mutex unlocked at end of destructor
7. Folder::~Folder called again by queued deleteLater (?)
8. SearchRunnable already deleted after step 5. Crash.
Fixed by setting m_currentSearchRunnable = 0 after cancelling the folder
listing.
This is slightly guess-work, but it's the best I can come up with. I'd appreciate if someone who knows more Qt could tell me if my story above is possible or not.</pre>
</td>
</tr>
</table>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
<table width="100%" bgcolor="#ffffff" cellspacing="0" cellpadding="10" style="border: 1px solid #b8b5a0">
<tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Compiled, ran. Can't reproduce crash, so not certain that it fixes it.</pre>
</td>
</tr>
</table>
<div style="margin-top: 1.5em;">
<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=308773">308773</a>
</div>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>services/storage/query/folder.cpp <span style="color: grey">(18e8ff7140eb03e12fcab7bead2b0d4bd6fa7474)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/107339/diff/" style="margin-left: 3em;">View Diff</a></p>
</td>
</tr>
</table>
</div>
</body>
</html>