Re: Fw: F_SETSIG broken/changed in 2.6 for UDP and TCP sockets?

I forgot to answer your question, I confirmed via the proc interface 
that the group has been joined.

I am thinking the issue is related to F_SETSIG. I don't read() until I 
get a signal and I am not getting ANY signals for the multicast data.

Googling around a little I saw changes in the futex code around FUTEX_FD 
... perhaps there is a bug?

Cobbling together a small test piece of code is the next thing to do...

Russell Leighton wrote:

> Thanks for the suggestion.
>
> I tried using the interface itself and INADDR_ANY...the signals are 
> not being received under 2.6 (FedoraCore2) UNLESS tcpdump is 
> running...note this works fine under 2.4.
>
> Below is the code fragment that sets up the socket (the previous email 
> had the code fragment that sets up the posix rt signals on the fd), 
> any help would be greatly appreciated:
>
>   /* mc_fd */
>   {
>
>     /* make it */
>     if ( (h->state.mc_fd = socket(AF_INET, SOCK_DGRAM, 0)) == -1 ) {
>       aw_log(h->handler_header.logger, AW_ERROR_LOG_LEVEL,