PcP 5.x Zero with hifibery intermidiate stopping squeezelite

[edwin2006]

I got lost in the PcP 5.x thread were i posted a problem with a Pi-zero with hifiberry dac https://forums.slimdevices.com/showt...l=1#post944736
So this is the original post https://forums.slimdevices.com/showt...l=1#post943759

Today again player disappeared. When looking at PcP the dac is still visible and PcP also say's that squeezelite is running but when i restart Squeezelite it gives an error. Only way to get it running is by rebooting the pi.
So that's what i did for now. What would be the next step when the failure happens again?

[TheHypnoToad]

I got lost in the PcP 5.x thread were i posted a problem with a Pi-zero with hifiberry dac https://forums.slimdevices.com/showt...l=1#post944736
So this is the original post https://forums.slimdevices.com/showt...l=1#post943759

Today again player disappeared. When looking at PcP the dac is still visible and PcP also say's that squeezelite is running but when i restart Squeezelite it gives an error. Only way to get it running is by rebooting the pi.
So that's what i did for now. What would be the next step when the failure happens again?

Can you log in to your pi over SSH when it disappears?

[edwin2006]

I'm not 100% sure but I thought I could. Next time it happens I'll try.

[paul-]

I would ssh in and then try to restart squeezelite from command line

sudo /usr/local/etc/init.d/squeezelite restart

See what it says from command line.

[edwin2006]

I will try as soon I've got the problem but it could take some time before this happens.

[TheHypnoToad]

I will try as soon I've got the problem but it could take some time before this happens.

If SSH connection fails, try just 'PINGing' the Pi if you know it's IP address or hostname, sometimes my PiZero will freeze, no SSH access but I'm still able to PING it so it still has network access.

It doesn't happen often, if it did I may look into the hardware watchdog for some sort of auto-reboot when this happens.

[edwin2006]

If SSH connection fails, try just 'PINGing' the Pi if you know it's IP address or hostname, sometimes my PiZero will freeze, no SSH access but I'm still able to PING it so it still has network access.

It doesn't happen often, if it did I may look into the hardware watchdog for some sort of auto-reboot when this happens.

If it's I visible to lms I'm still able to access pcp GUI, so it should be pingable also. So it looks like it's just Squeezelite that has been has stopped. Will try SSH next time.

[paul-]

If it's I visible to lms I'm still able to access pcp GUI, so it should be pingable also. So it looks like it's just Squeezelite that has been has stopped. Will try SSH next time.

If it's visibly to lms, then squeezelite is still running. However, if you stop squeezlite from playing, it will close the alsa output device. So if the device disappears after stopping, squeezelite will keep running. When you try to restart squeezelite it is likely not seeing the required output device, and thus not starting. Starting squeezelite from a ssh command line should see the whole error message.

So likely the board is disappearing from the system. You might also look at dmesg to see if something is in there. Otherwise, it's likely a hardware connection issue. Perhaps a pin with poor connection on the board.

[edwin2006]

I meant invisible but auto correct changed it in I visible [emoji53]
And how do I look for dmesg?

[paul-]

Just type dmesg from command line.

It’s also on one of the diagnostics pages

[TheHypnoToad]

I've just had this exact thing happen to me, Also running PiZero, with HifiBerry Dac Zero, on PcP 5.0, I was originally running 4.1 and upgrades have been with the card in the Pi.

On my LMS webinterface, the player called 'Orange' simply vanished. Music stopped straight away. Listening to a 128KBps radio station at the time.

I was already logged in on SSH and can still access the webinterface, here's what the diagnostics has to say:

[ INFO ] Squeezelite process:
/usr/local/bin/squeezelite -n Orange -o hw:CARD=sndrpihifiberry -a 80 4 1 -v -C 15

Squeezelite still seems to be running:

tc@PiZero:~$ ps -A | grep squeeze
 2121 root      3:07 /usr/local/bin/squeezelite -n Orange -o hw:CARD=sndrpihifiberry -a 80 4  1 -v -C 15

My network connection seems OK:

tc@PiZero:~$ iwconfig wlan0
wlan0     IEEE 802.11  ESSID:"xxxxxx"  
          Mode:Managed  Frequency:2.447 GHz  Access Point: xxxxxxxx
          Bit Rate=65 Mb/s   Tx-Power=31 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=50/70  Signal level=-60 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:282  Invalid misc:0   Missed beacon:0

dmesg did show this at the end however:

[ 2105.052866] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 3454.877425] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

Complete dmesg is at: https://paste2.org/fwb6g9PO

The Volume was not properly unmounted error seemed to occur around the same time as the player vanished from LMS, but I'm not really sure how to run fsck under PCP, but I can try if this may stop this from happening.

After around 5-10 mins the player has reappeared on the LMS webinterface, and is now playing music again, this time some FLAC's without issue, I did not reboot it.

Could this be some of sort SD card issue? Next time I have the player apart I can try restarting PCP with a different SD card and see if it happens again, but it takes a while for me to take the player out as it's bolted into a case.

Other things I checked:
CPU Temp:
cat /sys/class/thermal/thermal_zone0/temp = 58376
58 degrees C

power throttling?
cat /sys/devices/platform/soc/soc:firmware/get_throttled = 0
no power throttling

[paul-]

The fat error is pretty harmless, and would be unrelated.

from your log,

[   31.100454] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[   31.655319] brcmfmac: power management disabled
[   31.767930] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[   33.950362] Finished piCorePlayer v5.0.0 startup.
[  901.862425] sched: RT throttling activated
[ 1101.212729] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 1513.817876] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 1917.770103] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 1943.594702] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 1946.969047] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 2074.775198] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 2104.959325] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 2105.052866] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX
[ 3454.877425] FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.

I'm not sure why that message is being repeated so many times, normally you might see that only at startup. Seems like to me the card is disappearing. Perhaps you guys might want to check your connections on the GPIO header.

[TheHypnoToad]

The fat error is pretty harmless, and would be unrelated.

Nice, I was going to try and somehow start messing about with fsck, glad I don't have to now.

I'm not sure why that message is being repeated so many times, normally you might see that only at startup. Seems like to me the card is disappearing. Perhaps you guys might want to check your connections on the GPIO header.

I will double and triple check my connections and soldering next time the pi is onbolted, I do need do re-do some cabling also so it will be the perfect time to do so. I'm running a normal header connection for the DAC.

However I've found I always get the:
'Limiting sample rate support to 192kHz MAX'
Message whenever I turn the player on in the LMS webinterface.

I've just turned it off then on again in LMS webinterface, this is the last message:

[ 5453.232414] pcm5102a-codec pcm5102a-codec: pcm5102a_dai_startup: Limiting sample rate support to 192kHz MAX

'uptime' shows:
16:32:09 up 1:31, 2 users, load average: 1.06, 1.11, 1.09

1hr 31min = 5460 seconds, above message is at 5453 seconds which is around the same time.

[paul-]

Which hifiberry board are you guys using?

[sbp]

Another question: are you using the normal kernel or the rt kernel?