[mythtv] 0.15.1 memory leak?

[Steffen Immle]

Ken Bass wrote:

> I'm running 0.15.1 and notice after several days of running, things get
> really slow. There appears to be a memory leak somewhere which is causing
> swapping after some time (typically 2 days). Is anyone else having this
> problem? Has anyone sucessfully run 'valgrind' or a similar memory profiler
> on either the front or backend? Lastly, could this be ivtv? 
> 
> Any suggestions on debugging this?

On a related note, my Myth box (CVS as of some days ago, older versions 
too) runs out of memory within 15 minutes when using the 
picture-in-picture feature, causing the kernel to randomly stop either 
the frontend, the backend or both. My main card is a PVR-350, the other 
is an older bttv-based WinTV. From running top it seems that the 
frontend is consuming huge amount of memory (I have 256MB and 500+ MB 
swap), whereas the backend seems quite normal. This only occurs when 
using the PVR's decoder, not when displaying the video via the 
framebuffer. I also think that when exiting Live TV, the memory is only 
partly released. I have tested several versions of ivtv, including 
0.1.9, 0.1.10pre2, as well as various of the newer ck versions (71d, 94, 
95, ...). I actually spculated this was more ivtv's fault, but wanted to 
throw this in anyway. Sorry I can't give more details right now.

Steffen