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List: kde-panel-devel
Subject: Re: Review Request: fix callback race in the session saving and shutdown code
From: "Commit Hook" <null () kde ! org>
Date: 2012-07-25 17:55:08
Message-ID: 20120725175508.24578.14902 () vidsolbach ! de
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This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/105111/#review16382
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This review has been submitted with commit \
3af3f4c9c5bef5a3297ab50bcd445063b7441680 by Raphael Kubo da Costa to branch \
KDE/4.9.
- Commit Hook
On May 31, 2012, 8:48 a.m., Andriy Gapon wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/105111/
> -----------------------------------------------------------
>
> (Updated May 31, 2012, 8:48 a.m.)
>
>
> Review request for Plasma.
>
>
> Description
> -------
>
> This patch tries to a fix a race in the session saving and shutdown code \
> of ksmserver. The race may happen on wmPhase1WaitingCount variable when \
> WM-type clients are fast enough to complete their save requests while the \
> loop in KSMServer::shutdown is still iterating. As a result \
> wmPhase1WaitingCount may become zero too early and that would kick off \
> the next save/shutdown phase in a client's callback. In fact, it might \
> even go multiple times from zero to non-zero and back during the \
> WM-specific loop.
>
> This addresses bug 206511.
> http://bugs.kde.org/show_bug.cgi?id=206511
>
>
> Diffs
> -----
>
> ksmserver/shutdown.cpp a5a1ef9
>
> Diff: http://git.reviewboard.kde.org/r/105111/diff/
>
>
> Testing
> -------
>
>
> Thanks,
>
> Andriy Gapon
>
>
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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/105111/">http://git.reviewboard.kde.org/r/105111/</a>
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<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 \
3af3f4c9c5bef5a3297ab50bcd445063b7441680 by Raphael Kubo da Costa to branch \
KDE/4.9.</pre> <br />
<p>- Commit</p>
<br />
<p>On May 31st, 2012, 8:48 a.m., Andriy Gapon wrote:</p>
<table bgcolor="#fefadf" width="100%" cellspacing="0" cellpadding="8" \
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<div>Review request for Plasma.</div>
<div>By Andriy Gapon.</div>
<p style="color: grey;"><i>Updated May 31, 2012, 8:48 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;">This patch tries to a fix a race in the session saving and \
shutdown code of ksmserver. The race may happen on wmPhase1WaitingCount \
variable when WM-type clients are fast enough to complete their save \
requests while the loop in KSMServer::shutdown is still iterating. As a \
result wmPhase1WaitingCount may become zero too early and that would kick \
off the next save/shutdown phase in a client's callback. In fact, it \
might even go multiple times from zero to non-zero and back during the \
WM-specific loop.</pre> </td>
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<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=206511">206511</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>ksmserver/shutdown.cpp <span style="color: grey">(a5a1ef9)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/105111/diff/" \
style="margin-left: 3em;">View Diff</a></p>
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