On Sun, 27 Dec 2009 12:03:52 -0500
Michael Breuer [off-list ref] wrote:

Just an FYI - I left stuff running overnight and saw lots of this this 
AM... ans one from last night:
Dec 26 21:39:54 mail kernel: sky2 0000:06:00.0: error interrupt 
status=0x40000008
Dec 27 05:09:39 mail kernel: sky2 0000:06:00.0: error interrupt 
status=0x40000008

You have hardware/firmware problem, that is beyond the driver.
That status indicates:
  Parity Error/MAC - "This interrupt is intended to indicate a panic event (hardware fault)"

What is your hardware configuration (lspci, kernel config, memory, cpu)?