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    <body><span class="vcard"><a class="email" href="mailto:peter.hutterer@who-t.net" title="Peter Hutterer <peter.hutterer@who-t.net>"> <span class="fn">Peter Hutterer</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105370">bug 105370</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Resolution</td>
           <td>---
           </td>
           <td>DUPLICATE
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>NEW
           </td>
           <td>RESOLVED
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">CC</td>
           <td>
                
           </td>
           <td>peter.hutterer@who-t.net
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105370#c4">Comment # 4</a>
              on <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED DUPLICATE - Dragging the palm across touchpad crashes : Assertion `tp->tap.nfingers_down >= 1' failed."
   href="https://bugs.freedesktop.org/show_bug.cgi?id=105370">bug 105370</a>
              from <span class="vcard"><a class="email" href="mailto:peter.hutterer@who-t.net" title="Peter Hutterer <peter.hutterer@who-t.net>"> <span class="fn">Peter Hutterer</span></a>
</span></b>
        <pre>Looks like a dupe of <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - libinput crashes Xorg with SIGABRT in libinput_event_get_pointer_event"
   href="show_bug.cgi?id=105258">bug 105258</a>. There's still a bug warning replaying this but
it doesn't crash after 440d94be57.

<span class="quote">> Physical Dimension of touchpad (the actual area, without including buttons)
> Width = 10.8 cm
> Height = 6.1 cm</span >

please run the touchpad-edge-detector, this needs to be fixed in a hwdb entry.

<span class="quote">> For a newbie, how would I go about patching this issue? What steps do you 
> usually follow with the log and evemu log?</span >

basically: 
in one terminal: sudo evemu-play evemu.log file
in the other terminal: sudo ./build/libinput-debug-events --enalbe-tap

hit enter for evemu-play, watch libinput crash, warn, or sail along smoothly.
If the former, run in gdb to get an idea of what the context is (if needed, in
this case it's easy enough).

Isolate the event sequence that triggers the crash (where needed/possible).
Then stare at the evemu log long enough until it's clear why the crash happens.
Write a test case for libinput, then keep failing that until the bug is fixed
or a goat needs to be sacrificed [1], whichever happens earlier.


[1] no animals were harmed in the making of this software

*** This bug has been marked as a duplicate of <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - libinput crashes Xorg with SIGABRT in libinput_event_get_pointer_event"
   href="show_bug.cgi?id=105258">bug 105258</a> ***</pre>
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