ModalAI Forum

@Chad-Sweet Hi, the utility shows the same CPU usage if I add usr & sys.

Hi,
I'm migrating an app to VOXL, and noticed the performance is better, but the hidden "sys" values are negating any advantage (28% when 21% is for system).

Mem: 2737440K used, 1123880K free, 41796K shrd, 140144K buff, 1824000K cached
CPU:  6.9% usr 20.9% sys  0.0% nic 67.4% idle  0.0% io  2.3% irq  2.3% sirq
Load average: 3.84 3.14 1.65 4/750 13545

Using dmesg it seems it's overflowing with errors:

[  586.199252] type=1123 audit(1641721335.544:9489): pid=15875 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0-s15:c0.c1023 msg='cwd="/root/.ros" cmd=69776C69737420776C616E30207363616E terminal=? res=failed'
[  586.229739] type=1123 audit(1641721335.574:9490): pid=15876 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0-s15:c0.c1023 msg='cwd="/root/.ros" cmd=69776C69737420776C616E30207363616E terminal=? res=failed'
[  586.269861] type=1123 audit(1641721335.614:9491): pid=15877 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0-s15:c0.c1023 msg='cwd="/root/.ros" cmd=69776C69737420776C616E30207363616E terminal=? res=failed'
[  586.304811] type=1123 audit(1641721335.644:9492): pid=15878 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0-s15:c0.c1023 msg='cwd="/root/.ros" cmd=69776C69737420776C616E30207363616E terminal=? res=failed'
[  586.505185] audit: audit_lost=900 audit_rate_limit=20 audit_backlog_limit=64
[  586.505199] audit: rate limit exceeded

Any suggestions on how to diagnose this issue?

Missed that part, thank you, it seems to do the trick.

Hi,
I have bricked a voxl in dev, trying to restore using the debug expansion, but the process fails:

~/Downloads/modalai-3-1-0$ sudo ./install.sh 
[INFO] adb installed
[INFO] fastboot installed

This process will completely wipe your VOXL
Would you like to preserve the /data/ partition which contains
things like calibration, wifi config, and docker images
To preserve files in /data/ answer Y
To wipe /data/ for a full factory flash answer N

Enter Y or N: 
n
[INFO] Rebooting into fastboot...
error: no devices/emulators found
[INFO] Waiting for fastboot...
[INFO] Waiting for fastboot...
[INFO] Waiting for fastboot...
[INFO] Waiting for fastboot...
target reported max download size of 536870912 bytes
sending 'aboot' (494 KB)...
OKAY [  0.047s]
writing 'aboot'...
OKAY [  0.444s]
finished. total time: 0.492s
target reported max download size of 536870912 bytes
sending 'boot' (56066 KB)...
OKAY [  2.140s]
writing 'boot'...
OKAY [  0.745s]
finished. total time: 2.885s
target reported max download size of 536870912 bytes
erasing 'system'...
OKAY [  0.004s]
sending sparse 'system' 1/3 (523027 KB)...
FAILED (data write failure (Protocol error))
finished. total time: 9.678s

Would appreciate any insights and help I can get.

@tom Originaly configured it station, did not change it when tried to configure it to static.

Hi @tom
I tried this for wlan0 and it doesn't work for me, am I missing a configuration for out-of-the-box VOXL before I can add /etc/network/interfaces? or is it overriden by voxl-wifi?

@modaltb Using USB 2.
Got my hands on an OTG adapter, seems to be doing the trick.

Hi,
Connecting my laptop to voxl via adb works on j8 connecter.
However, an STM based device is not recognized when connecting a client device to voxl using micro-usb to micro-usb cable.
The same device is recognized when connecting via the usb expander (https://docs.modalai.com/usb-expander-and-debug-datasheet/)

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0483:5740 STMicroelectronics STM32F407
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

https://docs.modalai.com/voxl-as-usb-host/ does not specify any special requirements.
Am I missing something? is the micro-usb cable needs to be an OTG cable with ID pin?
Best regards,
Nir

Hi,
Just starting up a migration to Voxl as a companion.
Was reading up and wondering how often does it brick if shut-down without shutdown -f?
Is this a common occurence or a 1 in a 1000?
@see https://docs.modalai.com/unbrick-voxl/
Best regards,
Nirge