problems with em(4) since update to driver 7.2.2

[Olivier Smedts]

2011/5/4 Jack Vogel <jfvogel at gmail.com>:
> It has nothing to do with load, it has to do with the prerequisites to init
> your interfaces.
> The amount you need is fixed, it doesn't vary with load. Every RX descriptor
> needs one,
> so its simple math, number-of-interfaces X number-of-queues X size of the
> ring.
>
> If you have other network interfaces beside Intel they also consume mbufs
> remember.

Only one network interface.
# kldunload if_em.ko
(the old one)
# sysctl kern.ipc.nmbclusters=512000
(I also tried with lower and more meaningful values)
# kldload ./if_em.ko
(the new one)
# dmesg
em0: detached
pci0: <network, ethernet> at device 25.0 (no driver attached)
em0: <Intel(R) PRO/1000 Network Connection 7.2.3> port 0x2100-0x211f
mem 0xf0000000-0xf001ffff,0xf0025000-0xf0025fff irq 19 at device 25.0
on pci0
em0: Using an MSI interrupt
em0: Ethernet address: d4:85:64:b2:aa:f5
em0: Could not setup receive structures
em0: Could not setup receive structures

What can we do to help you debug this ?

-- 
Olivier Smedts                                                 _
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