[mythtv-users] HDPVR ringbuffer WaitForAvail
Michael T. Dean
mtdean at thirdcontact.com
Mon Feb 6 16:03:39 UTC 2012
On 02/05/2012 06:12 PM, John Nissley wrote:
> When I am watching live tv or recording a show on my HDPVR I keep
> receiving the following errors in my log file.
> ProcessRequest ringbuffer.cpp:1093 (WaitForAvail) -
> RingBuf(/video1/2778_20120205170546.mpg): Waited 0.2 seconds for data
> The show appears to record and play OK but I was wondering if there is a
> configuration change that I can make to help stop this error from
> showing up in my log.
> I am running the latest trunk version but have seen this for a long time
> so this is not something new.
That's not an error. It's informational. In 0.25, it will be marked
with an "I" to indicate just that. Our 0.24-fixes and below logging
code didn't do a good job of telling you what's important and what's
not. The new logging code that Gavin Hurlbut wrote for 0.25 does--it
actually marks messages with a character to indicate their log
level--emergency, alert, critical, error, warning, notice, info, or debug.
See the messages in the function at
(specifically lines 1090 and 1096). You'll note that it only becomes an
error after 16 seconds of waiting.
And, especially in this case--where "The show appears to record and play
OK"--this is definitely not a problem. The primary reason the message
is shown at even info level, rather than debug, is because a user who
waits only 10s or 13s before hitting Escape wouldn't see the error
that's printed at 16s. This "status" message allows a user diagnosing
issues to see that MythTV is waiting for a recording file's
data--providing information about why there's no video playing, just yet.
Note, also, that the message should be printed less frequently when 0.25
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