Re: Increased multicast packet drops in 3.4

On Wed, 2012-09-05 at 19:11 -0500, Shawn Bohrer wrote:

One thing I find interesting is that some of the time 2
or 3 of the 8 processes will report that they missed the exact same
50+ packets.  Since the other processes receive the packets I know
that they are making it to the machine and past the driver.

Could it be that these processes missing 50+ packets provide a non
accessible area of memory and these recvmsg() calls return EFAULT ?

Are you using special memory areas, using mprotect(), or huge pages for
example ?