On 25/03/12 23:03, Mike Isely wrote:
So, I am sticking with my WAG.
I agree.
Thanks guys. I do indeed have the server and the tuners on an APC
Back-UPS CS 650.
I'm not actually sure whether all four tuners fail at the same time.
When the log messages start appearing and the zero-length recordings
start happening I'm not sure whether all tuners have been knocked out by
then because of the way that MythTV schedules their use.
But I do know that if I leave things unaddressed for a few days (e.g.
because I'm away), then eventually the entire USB subsystem seems to go
AWOL leading also to apcupsd becoming unable to communicate with the UPS.
I have now done two things:
- automated the power cycling of the tuners whenever a zero-length
recording has just finished (using a power socket controlled by sispmctl).
- installed kernel 3.3.0.
The issue has not recurred since, but it was not unusual for it not to
occur for 2 weeks and then to happen a few times the next week. So I
can't yet tell whether the kernel upgrade has solved it. But I do hope
that if the issue recurs while I'm away the damage will be limited by my
power-cycling rig. (That's unless USB really goes haywire again because
the power socket is also controlled through USB).
I'll report back in a little while.
Thanks, Jan
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