LibreELEC 9.2.6 cannot sustain 2 simultaneous HD recordings & 1 playback

Hello,

I'm about to try to downgrade to a previous LibreELEC version in order to solve my issue, but before doing so, I'd love to have some experienced user input about my issue.

I started running LibreELEC 9.2.0 on a Raspberry Pi 3 Model B since a while. I use it mainly as a PVR with tvheadend running locally on the PI. My setup is as follows:

• 2 USB ATSC tuner connected to the Pi via a powered USB hub
• 1 external Hard Drive connected to the Pi via a powered USB hub
• tvheadend running locally on the PI

I know that in the early versions of 9.2.X, I was able to successfully sustain 2 simultaneous recordings while watching an already recorded program.

Now at LE 9.2.6, with the exact same physical setup, in about 10-15 minutes, the playback stops when there are 2 active recordings.

I can fairly easily reproduce the problem. I don't have a lot of addons running, beside tvheadend, the epg grabber and tvheadend client.

If useful, you can have have a look at my full debug log (from boot) here: http://sprunge.us/jqKa5p

In this log, I started playing an already recorded movies at:

2021-03-02 21:39:33.994 T:1937283520 NOTICE: VideoPlayer::OpenFile: pvr://recordings/tv/active/_-fond-de-train_2016-05-29, TV%20(Radio-Canada), 20160530_020000, 1026801670.pvr

Then, the playback stopped around this line:

2021-03-02 21:52:42.965 T:1494913920 ERROR: AddOnLog: Tvheadend HTSP Client: pvr.hts - Command fileRead failed: No response received 

I'm no expert, but it seems as if tvheadend stops responding?

Where should I start from there?

Thanks a lot in advance for your help!

Mathieu

For what it's worth, from tvheadend web UI (http://ip:9981) in the debug log, I was able to witness a playback stopped automatically. This is what is displayed. It seems that the connection is lost and then restored. But why...

2021-03-15 21:49:23.772 htsp: Got connection from 127.0.0.1
2021-03-15 21:49:23.773 htsp: 127.0.0.1: Welcomed client software: Kodi Media Center (HTSPv34)
2021-03-15 21:49:23.779 htsp: 127.0.0.1 [ Kodi Media Center ]: Identified as user ''
2021-03-15 21:49:28.782 htsp: 127.0.0.1 [  | Kodi Media Center ]: Disconnected
2021-03-15 21:49:28.782 subscription: 0028: "HTSP" unsubscribing, hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center"
2021-03-15 21:49:36.366 htsp: 127.0.0.1 [  | Kodi Media Center ]: Disconnected
2021-03-15 21:49:36.366 htsp: 127.0.0.1 [  | Kodi Media Center ]: Write error -- Broken pipe
2021-03-15 21:49:36.366 subscription: 0027: "HTSP" unsubscribing, hostname="127.0.0.1", username="127.0.0.1", client="Kodi Media Center"
2021-03-15 21:49:43.791 htsp: Got connection from 127.0.0.1
2021-03-15 21:49:43.792 htsp: 127.0.0.1: Welcomed client software: Kodi Media Center (HTSPv34)
2021-03-15 21:49:43.793 htsp: 127.0.0.1 [ Kodi Media Center ]: Identified as user ''
2021-03-15 21:49:43.988 dvr: "Le bon docteur" on "TVA": Updated ()

Full tvheadend log here: http://sprunge.us/CqEdeV