-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Stephen Hemminger wrote:

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

quoted

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.

Potentially:

[root@gibraltar3-esys-master ~]# cat /proc/interrupts
           CPU0
  0:        311   IO-APIC-edge      timer
  1:          2   IO-APIC-edge      i8042
  2:          0    XT-PIC-XT        cascade
  4:        440   IO-APIC-edge      serial
  7:          0   IO-APIC-edge      parport0
  8:         87   IO-APIC-edge      rtc0
 14:     124214   IO-APIC-edge      ide0
 15:          0   IO-APIC-edge      ide1
 19:         95   IO-APIC-fasteoi   ata_piix
 20:        962   IO-APIC-fasteoi   asak
 21:       3644   IO-APIC-fasteoi   testnet
 22:     108021   IO-APIC-fasteoi   hb
 23:          0   IO-APIC-fasteoi   ehci_hcd:usb1, uhci_hcd:usb2, voip
504:     188598   PCI-MSI-edge      lan
505:       7989   PCI-MSI-edge      dmz
506:     317686   PCI-MSI-edge      gibsrv
507:      84129   PCI-MSI-edge      wan
NMI:          0   Non-maskable interrupts
LOC:   11928173   Local timer interrupts
RES:          0   Rescheduling interrupts
CAL:          0   Function call interrupts
TLB:          0   TLB shootdowns
TRM:          0   Thermal event interrupts
SPU:          0   Spurious interrupts
ERR:          0
MIS:          0

Do I interpret this correctly that MSI is used by sky2 (those above are
the network interface names)? Sorry for my ignorance in this regard, but
I haven't consciously used or debugged MSI so far.

best regards,
Rene
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkpupvcACgkQq7SPDcPCS94ULQCgkcTQe5/HepuXuncx4grujtrv
adwAoOIERCJIVph/uwPTjVAwDQj7vnBC
=4/Xu
-----END PGP SIGNATURE-----