Downloading Log files causes Mag Errors

[tops4u]

Describe the bug
While downloading Logfiles (> 10MB) the Cube started flashing Pink. Now by redoing it I noticed that the Cubes RGB LED "Breathing" is "stuttering" while Log Downloads. Sometimes it would timeout the Mags:

I do not think this is Mission-Critial, but still worth noting.

Drone (please complete the following information):
CUAV Pixhack v5, PX4 1.9 RC2

[julianoes]

Mag timeouts are usually an indication of the system being stalled, and not actually a problem of the mag itself. This would mean something in MAVLink FTP is consuming too much CPU or IO and impacting the system overall.

[Antiheavy]

Mag timeouts are usually an indication of the system being stalled, and not actually a problem of the mag itself.

We run into this annoying issue quite often. is there a strategy that could solve it?

[dagar]

There are a few different cases, but some of them will go away after #11571 is merged. Other things running in hpwork (land detector, shutdown logic, etc) will no longer be able to block mag readings.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[tops4u]

I probably have to retest this, but I AFAIR it still happens in 1.9.x

[stale]

This issue has been automatically marked as stale because it has not had recent activity. Thank you for your contributions.

[junwoo091400]

@tops4u Could you check again if this still happens now? Although it is super old issue 😆