sky2 hangs without any messages

[Tino Keitel <tino.keitel@tikei.de>]

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Hi folks,

in the last 2 days, I had 2 outages of the NIC of my Mac mini Core Duo.
I checked the kernel log but I found nothing sky2 related. After
reloading the module, the interface worked again.

Both freezes were connected to access from a remote NFS client to a
directory with ~4700 files in it. Both times, after reloading the
module and waiting some minutes until the NFS client had recovered from
the hanging NFS server, the same action worked.

The network is 100 mbit full duplex. I use NFS over TCP and kernel
2.6.21 with the "disable flow control" patch, the configuration is
attached.

Here are the sky2 messages that appeared when I discovered the freeze
and reloaded the driver:

sky2 eth0: disabling interface
ACPI: PCI interrupt for device 0000:01:00.0 disabled
ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 17
PCI: Setting latency timer of device 0000:01:00.0 to 64
sky2 0000:01:00.0: v1.14 addr 0x90200000 irq 17 Yukon-EC (0xb6) rev 2
Device driver eth0 lacks bus and class support for being resumed.
sky2 eth0: addr 00:16:cb:a4:e1:68
sky2 eth0: enabling interface
sky2 eth0: ram buffer 48K
sky2 eth0: Link is up at 100 Mbps, full duplex, flow control none

Regards,
Tino

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