ixgbe(4) and "Could not setup receive structures"

[Leon Meßner]

Hi,

i tried setting the mtu on one of my ixgbe(4) intel NICs to support
jumbo frames. This is on a box with RELENG_8 from today.

# ifconfig ix0 mtu 9198

I then get the following error: 

# tail -n 1 /var/log/messages
Apr 14 12:48:43 siloneu kernel: ix0: Could not setup receive structures

I already tried the following patch because of Jack Vogel's advice given
in the following thread on -stable in Oct. last year, which still
produces the same error message and leaves the box unpingable:

http://lists.freebsd.org/pipermail/freebsd-stable/2010-October/059541.html

# cat ~/patches/ixgbe.num_queues_to_4.patch 
--- /root/.vimbackup/ixgbe.c~   2011-04-12 22:14:27.000000000 +0000
+++ sys/dev/ixgbe/ixgbe.c       2011-04-12 22:14:27.000000000 +0000
@@ -273,7 +273,7 @@ TUNABLE_INT("hw.ixgbe.hdr_split", &ixgbe
  * number of cpus. Each queue is a pair
    * of RX and TX rings with a msix vector
      */
      -static int ixgbe_num_queues = 0;
      +static int ixgbe_num_queues = 4;
       TUNABLE_INT("hw.ixgbe.num_queues", &ixgbe_num_queues);
        
	 /*