e1000 doesn't resume properly from standby (2.6.23-rc2)

[Simon Arlott <simon@fire.lp0.eu>]

00:0a.0 Ethernet controller: Intel Corp. 82546EB Gigabit Ethernet Controller (Copper) (rev 01)
        Subsystem: Intel Corp.: Unknown device 1012
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 5
        Memory at e3020000 (64-bit, non-prefetchable) [size=128K]
        I/O ports at b000 [size=64]
        Capabilities: [dc] Power Management version 2
        Capabilities: [e4] PCI-X non-bridge device.
        Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-

00:0a.1 Ethernet controller: Intel Corp. 82546EB Gigabit Ethernet Controller (Copper) (rev 01)
        Subsystem: Intel Corp.: Unknown device 1012
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 12
        Memory at e3000000 (64-bit, non-prefetchable) [size=128K]
        I/O ports at b400 [size=64]
        Capabilities: [dc] Power Management version 2
        Capabilities: [e4] PCI-X non-bridge device.
        Capabilities: [f0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable-

[  950.132046] Stopping tasks ... done.
[  950.459794] Suspending console(s)
[  951.776277] pnp: Device 00:0c disabled.
[  951.776673] pnp: Device 00:0a disabled.
[  951.776984] pnp: Device 00:09 disabled.
[  951.777306] pnp: Device 00:08 disabled.
[  951.777786] ACPI: PCI interrupt for device 0000:00:11.5 disabled
[  951.995359] ACPI: PCI interrupt for device 0000:00:11.3 disabled
[  952.006094] ACPI: PCI interrupt for device 0000:00:11.2 disabled
[  952.022243] ACPI handle has no context!
[  952.033068] ACPI: PCI interrupt for device 0000:00:0c.2 disabled
[  952.044086] ACPI: PCI interrupt for device 0000:00:0c.1 disabled
[  952.055083] ACPI: PCI interrupt for device 0000:00:0c.0 disabled
[  952.282211] ACPI: PCI interrupt for device 0000:00:0a.1 disabled
[  952.282221] ACPI handle has no context!
[  952.537474] ACPI: PCI interrupt for device 0000:00:0a.0 disabled
[  952.537495] ACPI handle has no context!

[  956.857085] Back to C!
[  957.295035] ACPI: Unable to turn cooling device [b18d0e00] 'off'
[  957.521400] PCI: Setting latency timer of device 0000:00:01.0 to 64
[  957.521478] ACPI: PCI Interrupt 0000:00:09.0[A] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
[  957.532256] PM: Writing back config space on device 0000:00:0a.0 at offset f (was ff0100, writing ff0105)
[  957.532277] PM: Writing back config space on device 0000:00:0a.0 at offset 8 (was 1, writing b001)
[  957.532291] PM: Writing back config space on device 0000:00:0a.0 at offset 4 (was 4, writing e3020004)
[  957.532299] PM: Writing back config space on device 0000:00:0a.0 at offset 3 (was 800000, writing 802008)
[  957.532309] PM: Writing back config space on device 0000:00:0a.0 at offset 1 (was 2300000, writing 2300007)
[  957.532339] ACPI: PCI Interrupt 0000:00:0a.0[A] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5
[  957.567251] PM: Writing back config space on device 0000:00:0a.1 at offset f (was ff0200, writing ff020c)
[  957.567275] PM: Writing back config space on device 0000:00:0a.1 at offset 8 (was 1, writing b401)
[  957.567290] PM: Writing back config space on device 0000:00:0a.1 at offset 4 (was 4, writing e3000004)
[  957.567298] PM: Writing back config space on device 0000:00:0a.1 at offset 3 (was 800000, writing 802008)
[  957.567308] PM: Writing back config space on device 0000:00:0a.1 at offset 1 (was 2300000, writing 2300007)
[  957.567346] ACPI: PCI Interrupt 0000:00:0a.1[B] -> Link [LNKD] -> GSI 12 (level, low) -> IRQ 12
[  957.589975] ACPI: PCI Interrupt 0000:00:0b.0[A] -> Link [LNKD] -> GSI 12 (level, low) -> IRQ 12
[  957.600217] ACPI: PCI Interrupt 0000:00:0c.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
[  957.611230] ACPI: PCI Interrupt 0000:00:0c.1[B] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
[  957.838282] ACPI: PCI Interrupt 0000:00:0c.2[C] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5
[  957.902166] ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[11]  MMIO=[e3046000-e30467ff]  Max Packet=[512]  IR/IT contexts=[4/8]
[  957.911656] ACPI: PCI Interrupt 0000:00:11.1[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
[  957.911666] PCI: VIA VLink IRQ fixup for 0000:00:11.1, from 255 to 11
[  957.922034] ACPI: PCI Interrupt 0000:00:11.2[D] -> Link [LNKD] -> GSI 12 (level, low) -> IRQ 12
[  957.933028] ACPI: PCI Interrupt 0000:00:11.3[D] -> Link [LNKD] -> GSI 12 (level, low) -> IRQ 12
[  957.944076] ACPI: PCI Interrupt 0000:00:11.5[C] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5
[  957.944091] PCI: Setting latency timer of device 0000:00:11.5 to 64
[  957.946061] ACPI: PCI Interrupt 0000:01:00.0[A] -> Link [LNKA] -> GSI 11 (level, low) -> IRQ 11
[  957.947464] pnp: Device 00:08 activated.
[  957.948724] pnp: Device 00:09 activated.
[  957.950635] pnp: Device 00:0a activated.
[  957.950664] pnp: Failed to activate device 00:0b.
[  957.951942] pnp: Device 00:0c activated.
[  959.883939] e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[  961.866287] hde: selected mode 0x45
[  965.310493] hdg: selected mode 0x45
[  965.316152] hdh: selected mode 0x42
[  969.135523] hda: selected mode 0x46
[  973.454631] hdb: selected mode 0x45
[  973.457179] hdc: selected mode 0x44
[  973.459550] hdd: selected mode 0x42
[  973.950474] Restarting tasks ... done.
[  974.261357] agpgart: Found an AGP 2.0 compliant device at 0000:00:00.0.
[  974.262099] agpgart: Putting AGP V2 device at 0000:00:00.0 into 4x mode
[  974.262620] agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode
[  974.262894] [drm] Loading R200 Microcode


eth0 now doesn't receive anything - it's transmitting ok because 
I can receive its packets on another host. It's also still getting 
interrupts.

If I then ifconfig eth0 down and up, or change the MTU (since 
that resets the link on e1000), it starts working again:

[  993.926603] e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX


There's a link up at 959.883939 too...

-- 
Simon Arlott