# qvio error when connecting a rostopic subscriber to /qvio

Source: https://forum.modalai.com/topic/939/qvio-error-when-connecting-a-rostopic-subscriber-to-qvio
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2022-05-13 15:49:05 UTC by m1baldwin
Replies: 1 · Views: 812

## m1baldwin · 2022-05-13 15:49:05 UTC

I have been testing the VOXL Cam (system image 3.3.0) and had an error show up when connecting to a rostopic listener. 

I let the full voxl-* system services run, and then launch the mpa_to_ros adapter which exposes the data over ros-topic. My roscore is running on another machine on the same network. I have confirmed that voxl is correctly pointing to that rosmaster using the ROS_MASTER_URI and ROS_IP environmental variables.

On the ros-master machine, when I subscribe to the /qvio/pose or /qvio/odometry topic, I begin to see errors in the terminal running the mpa_to_ros adapter. A sample of the errors are below. I do not get any messages echoed on the terminal where I am running "rostopic echo /qvio/pose"

ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82138
ERROR: allocating memory for image buffer: Cannot allocate memory
ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82139
ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82141
ERROR: allocating memory for image buffer: Cannot allocate memory
ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82142
ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82144
ERROR: received unreasonably large camera frame size
ERROR: allocating memory for image buffer: Cannot allocate memory
qvio_overlay frame: 82145
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82147
ERROR: received unreasonably large camera frame size
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82149
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82150
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82151
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82152
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82153
ERROR: received unreasonably large camera frame size
qvio_overlay frame: 82154
qvio_overlay frame: 82155

## Reply by rapit · 2022-05-31 16:34:28 UTC

I had the same issue. Updating the `voxl_mpa_to_ros` package resolved it for me:

```
opkg update
opkg install voxl-nodes 
```