<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Odd conditions resulting in voxl-camera-server crash]]></title><description><![CDATA[<p dir="auto">Hi devs</p>
<p dir="auto">So im still trying to troubleshoot the voxl-camera-server crashes that i encountered as described here:<br />
<a href="https://forum.modalai.com/post/11480">https://forum.modalai.com/post/11480</a></p>
<p dir="auto">While doing so i discovered that there are odd conditions that would trigger the voxl-camera-server to crash.</p>
<p dir="auto"><strong>Moving the putty window</strong><br />
-SSH into VOXL2 (im using the Windows ver of putty)<br />
-run voxl-camera-server in debug voxl-camera-server -d 0<br />
-Click and drag the putty window to move it around<br />
-voxl-camera-server crashes</p>
<p dir="auto"><strong>Delaying the startup of voxl-streamer</strong><br />
-Add the following directives to voxl-streamer's systemd unit file:<br />
Type=oneshot<br />
ExecStartPre=/bin/sleep 45<br />
-voxl-camera-server crashes randomly - sometimes upon bootup, sometimes several mins after<br />
-changing the Type to simple and removing the sleep duration solves the problem</p>
<p dir="auto">Im not sure if they are related by here (blocking processes?)</p>
<p dir="auto">Thanks</p>
]]></description><link>https://forum.modalai.com/topic/2506/odd-conditions-resulting-in-voxl-camera-server-crash</link><generator>RSS for Node</generator><lastBuildDate>Fri, 17 Jul 2026 18:13:12 GMT</lastBuildDate><atom:link href="https://forum.modalai.com/topic/2506.rss" rel="self" type="application/rss+xml"/><pubDate>Sun, 30 Jul 2023 06:21:10 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to Odd conditions resulting in voxl-camera-server crash on Wed, 02 Aug 2023 15:54:20 GMT]]></title><description><![CDATA[<p dir="auto">@Thomas-Patton thanks for looking into this.</p>
<p dir="auto">The random crash that I described in my second message in this thread is not related to the OS on which I run putty on. The crash happens on the VOXL2, sometimes even before I SSH in.</p>
]]></description><link>https://forum.modalai.com/post/11665</link><guid isPermaLink="true">https://forum.modalai.com/post/11665</guid><dc:creator><![CDATA[hmlow]]></dc:creator><pubDate>Wed, 02 Aug 2023 15:54:20 GMT</pubDate></item><item><title><![CDATA[Reply to Odd conditions resulting in voxl-camera-server crash on Wed, 02 Aug 2023 15:48:45 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/hmlow" aria-label="Profile: hmlow">@<bdi>hmlow</bdi></a></p>
<p dir="auto">Hello, sorry to hear you've been having issues with this. Looking through our code those error messages are coming directly from our camera module so I can't say much as to why it's happening.</p>
<p dir="auto">If you're using a completely new set of hardware then the problem seems software related. Do you have any way of reproducing this issue on a non-Windows system? Ubuntu 20.04 would be preferable as it's our only officially supported operating system.</p>
<p dir="auto">I'm not an expert in this area so I've pinged someone more experienced who should be able to provide more help.</p>
<p dir="auto">Best of luck!</p>
<p dir="auto">Thomas</p>
]]></description><link>https://forum.modalai.com/post/11664</link><guid isPermaLink="true">https://forum.modalai.com/post/11664</guid><dc:creator><![CDATA[[[global:former-user]]]]></dc:creator><pubDate>Wed, 02 Aug 2023 15:48:45 GMT</pubDate></item><item><title><![CDATA[Reply to Odd conditions resulting in voxl-camera-server crash on Tue, 01 Aug 2023 15:39:18 GMT]]></title><description><![CDATA[<p dir="auto"><a class="plugin-mentions-user plugin-mentions-a" href="/user/hmlow" aria-label="Profile: hmlow">@<bdi>hmlow</bdi></a></p>
<p dir="auto">no one?<br />
am i really the only one encountering these crashes?<br />
once in a blue moon the crash still happens during bootup for no specific reason (that i could tell)</p>
<p dir="auto">Final few log prints before it crashes:</p>
<pre><code>VERBOSE: Camera: tof processing preview frame
VERBOSE: finished sending request for frame 1477 for camera tof
VERBOSE: returning from SendOneCaptureRequest for frame 1478 for camera tof
VERBOSE: added request for preview stream
VERBOSE: Sending request for frame 1478 for camera tof for 1 streams
VERBOSE: Received result from HAl3 for frame number 1477
VERBOSE: Received 0 buffers from camera tof, partial result:1
VERBOSE: Sent tof data to royale for processing
VERBOSE: Received result from HAl3 for frame number 8847
VERBOSE: Received 0 buffers from camera tracking, partial result:2
VERBOSE: Received metadata for frame 8847 from camera tracking
VERBOSE:        Timestamp: 1277332818009
VERBOSE:        Gain: 169
VERBOSE:        Exposure: 5184081
VERBOSE: Received result from HAl3 for frame number 8847
VERBOSE: Received 1 buffers from camera tracking, partial result:0
VERBOSE: Received output buffer 8847 from camera tracking
VERBOSE: tracking procesing new buffer
VERBOSE: Camera: tracking processing preview frame
VERBOSE: Preview format HAL_PIXEL_FORMAT_RAW10
VERBOSE: finished sending request for frame 8852 for camera tracking
VERBOSE: returning from SendOneCaptureRequest for frame 8853 for camera tracking
VERBOSE: added request for preview stream
VERBOSE: Sending request for frame 8853 for camera tracking for 1 streams
VERBOSE: Received result from HAl3 for frame number 8852
VERBOSE: Received 0 buffers from camera tracking, partial result:1
VERBOSE: Received royale data for camera: tof
ERROR:   Received "Buffer" error from camera: tracking
ERROR:   Received "Result" error from camera: tracking
</code></pre>
<p dir="auto">I encountered the same crash on a completely new and different set of hardware (VOXL2, cameras, etc) as well.<br />
Surely it cant be a h/w problem?</p>
]]></description><link>https://forum.modalai.com/post/11605</link><guid isPermaLink="true">https://forum.modalai.com/post/11605</guid><dc:creator><![CDATA[hmlow]]></dc:creator><pubDate>Tue, 01 Aug 2023 15:39:18 GMT</pubDate></item></channel></rss>