Re: UDP recvmsg blocks after select(), 2.6 bug?

Alan Cox
2004-10-06T17:44:00Z

On Mer, 2004-10-06 at 15:52, Joris van Rantwijk wrote:
> My understanding of POSIX is limited, but it seems to me that a read call
> must never block after select just said that it's ok to read from the
> descriptor. So any such behaviour would be a kernel bug.

Select indicates there may be data. That is all - it might also be an
error, it might turn out to be wrong.

You should always combine select with nonblocking I/O