Re: Kernel oops on setting sky2 interfaces down

On Mon, 27 Jul 2009 13:03:17 +0200
Rene Mayrhofer [off-list ref] wrote:

Stephen Hemminger schrieb:

quoted

You could try commenting out sky2_shutdown which does the Wol
power down stuff. Maybe changing setting of Wake On Lan would
help as well.

What happens if you take interface down 'ip link set eth0 down' (or ifconfig)?

There are several different register writes in the shutdown path.
You could add code to check if a particular access is disabling
the PCI buss with:

    sky2_write(... som register...)
    BUG_ON(sky2_read16(sky2->hw, B0_CTST) == 0xffff);

I tried adding that wherever it seemed to make sense, resulting in

Does the platform use MSI? Perhaps it generates a bogus interrupt when
powered off.