[mythtv-users] failed recordings: Poll took an unusually long time

Richard Morton richard.e.morton at gmail.com
Mon Dec 8 21:27:25 UTC 2014


Hi,

Long time no see, I hope everyone is well.

I have a system running on an Atom with two PCtv-290e usb dvb-t2 tuners.
It's on Mythbuntu 12.04.5 32bit

MythTV Version : v0.27.4-25-g86ff53a
MythTV Branch : fixes/0.27

Atom 330 / ION
4gb ram
32gb ssd
2 x 3tb drives for storage

The system was working well for a year; it became unreliable in
recordings/playback which I eventually tracked down to a loose aerial
connection however it is now still causing issues.

When I restart the system (cold start) it works fine but after a few hours
I start to lose recordings; starts with failed mid-way through recordings
(short recordings with corruption) and then complete fails (0byte
recordings)... The mythbackend log is full of the following.

The temperature of the unit doesnt change so although I say "cold start" I
mean this in the technical sense that I removed the power from the unit
before start but the system hasn't cooled down.

I'm guessing that it is component failure - the motherboard is 4 years old
I guess now. honestly I have been thinking of an upgrade but would rather
wait a couple of months.

Anything anyone can suggest to try and identify the issue?

thanks

R




Dec  7 23:53:23 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 30021
ms
Dec  7 23:54:34 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 71619
ms
Dec  7 23:54:42 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 7551
ms
Dec  7 23:54:53 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 11222
ms
Dec  7 23:55:12 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 18919
ms
Dec  7 23:55:23 master mythbackend: mythbackend[2000]: W DeviceReadBuffer
recorders/DeviceReadBuffer.cpp:555 (Poll)
DevRdB(/dev/dvb/adapter1/frontend0): Poll took an unusually long time 11222
ms

Thanks and regards,

Richard Morton
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