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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - SIGSEGV in handle_touch_with_coords"
href="https://bugs.freedesktop.org/show_bug.cgi?id=77341">77341</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>wayland-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>SIGSEGV in handle_touch_with_coords
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>anasuyax.r.nannuri@intel.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>libinput
</td>
</tr>
<tr>
<th>Product</th>
<td>Wayland
</td>
</tr></table>
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<pre>Weston crashes when it cannot find the touch device output. See attached
gdb_backtrace for more info. There are different ways to reproduce this bug.
1st method to reproduce:
======================
1. Identify two displays as display1 and display2
2. Display2 is a touch device
3. Disconnect display2 monitor (touch is still working)
4. Execute weston-launch
5. Touch display2 screen. Observe weston crash.
2nd method to reproduce:
======================
1. Create a udev mapping rule in /etc/udev/rules.d/weston.rules with wrong
display name.
Example:
ENV{ID_VENDER_ID}=="2149", ENV{ID_MODEL_ID}=="2122", ENV{WL_OUTPUT}="HDMI3"
(Here instead of VGA1, I gave incorrect display name)
2. Unplug and Replug USB touch device to apply new udev rules.
3. Start Weston
4. Touch the display. Observe weston crash.
Software Stack
==============
Kernel: 3.13.6-200.fc20.x86_64
Systemd: 212 (rawhide)
wayland (HEAD) 1.4.91-0-g5e2cfd2
drm (HEAD) libdrm-2.4.52-0-g46d451c
mesa (HEAD) mesa-10.1-0-g4a86465
libva (HEAD) libva-1.2.1-0-g88ed1eb
intel-driver (HEAD) 1.2.2-0-g121e70d
cairo (HEAD) heads/1.12-0-g59e2a93
libinput (HEAD) remotes/origin/HEAD-0-gc5c503c
weston (HEAD) 1.4.91-0-g79d5a6e</pre>
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</p>
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