Recording sometimes stops, rmm and mqttv4 killed

[Dotatay]

Sometimes the camera stops recording videos. Then the camera needs to be restarted and everything works well again.

After the error and a reboot, I ran the command "ps". These processes were no longer present during the error: 1276 root 42436 S ./rmm 1724 root 880 S mqttv4

My Camera Dome Guard r30gb YRS 9.0.05 yi-hack-Allwinner-v2 0.3.1

It might be important to note that I bought the camera with the pre-installed version 0.2.4 and it was working well for over a month until I updated it to 0.3.1.

[roleoroleo]

It's a known problem. The cam runs out of memory and the kernel kills some processes. Did you enable swap file? Disable all unneeded features.

[Dotatay]

Were there any major changes affecting resource consumption between versions 0.2.4 and 0.3.1? With version 0.2.4 I had about 20000 KB of memory free. With version 0.3.1 it’s only 12000 KB.

Swap: 15 MQTT is disabled

Active features: Disable Cloud Recording without Cloud RTSP low aac Enable/disable time OSD NTPD HTTPD

As an automatic solution to keep the camera active (reboot) after an error, I’m currently using this script and the cron entry:

#!/bin/sh

if ! ps | grep "./rmm" | grep -qv grep; then
    reboot
fi

*/5 * * * * /tmp/sd/yi-hack/bin/checkrmm.sh

[roleoroleo]

Were there any major changes affecting resource consumption between versions 0.2.4 and 0.3.1?

Too many changes. It's not simple to know what change is responsible for this memory consumption.

About restart, wd_rtsp.sh already contains a check to restart the system when rmm is not running.

[Dotatay]

Thank you very much for your help.

During some testing I had disabled the RTSP server and was already wondering... I think the check was in this case disabled, too.

Even without my extra script, the camera restarts automatically after crashes. Thanks!