[mythtv-users] ivtv0 warning: ENC Stream 0 OVERFLOW

[chris at cpr.homelinux.net]

On Sat, Jan 07, 2006 at 09:34:41AM -0500, Al McIntosh wrote:
> >>Dec 15 07:28:27 mythbox kernel: ivtv0 warning: ENC Stream 0  OVERFLOW 
> >>#2:
> >>Stealing a Buf
> >>fer, 512 currently allocated
> 
> More memory does not appear to help. Did anyone manage a fix for this?

In my case, it turned out that my network card was on the same IRQ as 
all three IDE channels (software RAID-5), and while the box would 
usually record OK, if I was doing something network-intensive (like 
watching TV on the remote Myth frontend) the network card would 
generate so many IRQs it was delaying the drives to the point where 
the front-end would stutter, ivtv would overflow, and eventually the 
RAID driver would fail a drive.  That would have been fine, except 
that the ethernet watchdog (tulip driver) would panic the kernel.  I 
tried forcing the cards to specific IRQs but the tulip driver 
wouldn't behave.  I switched to a different ethernet port and ALL of 
the problems went away.

-- 
"When fascism comes to America, it will be wrapped in the flag and 
carrying the cross." - Sinclair Lewis (1935)