Icecast dev - Jul 2005 - Ices host hangup with icecast2.2kh9 on server host

Hi,

I have the following config;
4 ices hosts, ices-kh60

2 are streaming to icecast2.1kh5 server.
2 are streaming to icecast2.2kh9 server.

The 2 hosts streaming to icecast2.2kh9 are crashing (machine crash...) 
twice a week.

I was thinking of hardware problem, but it think it's not the case.
To feed ices, I use:

rawrec | ices

Which I found very sensitive and may cause machine handup if any trouble.
Is it possible that under certain circumstances, icecast2.2kh9 is 
blocking something, causing ices freeze, then rawrec crashing the 
machine while trying to do access sound card without being able to send 
audio to ices ?

This is the only reasonnable explanation to the problem I found.

What other solution may I use to read sound card input rather than using 
rawrec ?

I saw in icecast2.2kh12e that there is some socket changes. Can this may 
correct the above problem?
(I will take several days to test for me)

Best regards,
Chris

On Sat, 2005-07-09 at 09:02, Iceuse - Kris wrote:
> Hi,
> 
> I have the following config;
> 4 ices hosts, ices-kh60
> 
> 2 are streaming to icecast2.1kh5 server.
> 2 are streaming to icecast2.2kh9 server.
> 
> The 2 hosts streaming to icecast2.2kh9 are crashing (machine crash...) 
> twice a week.
> I was thinking of hardware problem, but it think it's not the case.
depends on the nature of the crash, a complete crash is probably because
of a device driver which may of been triggered by ices/rawrec. The only
other sort of thing that user apps can do to cause problems like this
are massive memory leaks.
> To feed ices, I use:
> rawrec | ices
> 
> Which I found very sensitive and may cause machine handup if any trouble.
> Is it possible that under certain circumstances, icecast2.2kh9 is 
> blocking something, causing ices freeze, then rawrec crashing the 
> machine while trying to do access sound card without being able to send 
> audio to ices ?
it's possible, in which case there's a few bugs showing up. icecast
should not have a problem with a stalling listener and drops them when
they are too far behind, ices-kh60 uses non-blocking sockets to connect
to icecast so should be processing the input and the device driver
should be able to handle a stall without crashing.
> This is the only reasonnable explanation to the problem I found.
> 
> What other solution may I use to read sound card input rather than using 
> rawrec ?
ices 2 has been able to read oss/alsa/sun input for some time, is their
a particular reason for rawrec?
> I saw in icecast2.2kh12e that there is some socket changes. Can this may 
> correct the above problem?
> (I will take several days to test for me)
12e has many changes in over kh9, the connection changes are related to
the processing incoming client requests using non-blocking sockets, so I
don't think it will affect you if the problem happened mid-stream. I
have fixed an odd case in the ogg handler which may cause it to loop
instead of go back to reading though.

Even a busy loop should not cause a crash though, so check for updated
drivers.

karl.