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Workaround and fixup for EHCI power managment on MacBookAir3,1(2). The breake happened after 2.6.35. Insmod ehci_hcd with ppcd and lpm on the MacBookAir : 2010-11-18T08:31:41.286309+01:00 MacBookAir kernel: ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver 2010-11-18T08:31:41.286350+01:00 MacBookAir kernel: Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after 2010-11-18T08:31:41.286356+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: power state changed by ACPI to D0 2010-11-18T08:31:41.286361+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: power state changed by ACPI to D0 2010-11-18T08:31:41.286379+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: PCI INT B -> Link[LUS2] -> GSI 22 (level, low) -> IRQ 22 2010-11-18T08:31:41.286384+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: setting latency timer to 64 2010-11-18T08:31:41.286394+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: EHCI Host Controller 2010-11-18T08:31:41.286400+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: new USB bus registered, assigned bus number 1 2010-11-18T08:31:41.286405+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: debug port 1 2010-11-18T08:31:41.309626+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: cache line size of 256 is not supported 2010-11-18T08:31:41.309669+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: irq 22, io mem 0x9328b100 2010-11-18T08:31:41.309675+01:00 MacBookAir kernel: usb 3-3: USB disconnect, address 2 2010-11-18T08:31:41.319608+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.10 2010-11-18T08:31:41.319627+01:00 MacBookAir kernel: hub 1-0:1.0: USB hub found 2010-11-18T08:31:41.319631+01:00 MacBookAir kernel: hub 1-0:1.0: 6 ports detected 2010-11-18T08:31:41.319635+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: power state changed by ACPI to D0 2010-11-18T08:31:41.319638+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: power state changed by ACPI to D0 2010-11-18T08:31:41.319642+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: PCI INT B -> Link[Z001] -> GSI 21 (level, low) -> IRQ 21 2010-11-18T08:31:41.319646+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: setting latency timer to 64 2010-11-18T08:31:41.319649+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: EHCI Host Controller 2010-11-18T08:31:41.319653+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: new USB bus registered, assigned bus number 2 2010-11-18T08:31:41.319656+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: debug port 1 2010-11-18T08:31:41.342951+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: cache line size of 256 is not supported 2010-11-18T08:31:41.342985+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: irq 21, io mem 0x9328b000 2010-11-18T08:31:41.352971+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: USB 2.0 started, EHCI 1.10 2010-11-18T08:31:41.353006+01:00 MacBookAir kernel: bcm5974: bcm5974: could not read from device 2010-11-18T08:31:41.353010+01:00 MacBookAir kernel: hub 2-0:1.0: USB hub found 2010-11-18T08:31:41.353016+01:00 MacBookAir kernel: hub 2-0:1.0: 6 ports detected 2010-11-18T08:31:41.483061+01:00 MacBookAir kernel: usb 3-5: USB disconnect, address 3 2010-11-18T08:31:41.483098+01:00 MacBookAir kernel: usb 3-5.3: USB disconnect, address 6 2010-11-18T08:31:41.483179+01:00 MacBookAir kernel: btusb_bulk_complete: hci0 urb ffff880037bf4900 failed to resubmit (19) 2010-11-18T08:31:41.483185+01:00 MacBookAir kernel: btusb_intr_complete: hci0 urb ffff880037bf4f00 failed to resubmit (19) 2010-11-18T08:31:41.483191+01:00 MacBookAir kernel: btusb_bulk_complete: hci0 urb ffff880037bf4d80 failed to resubmit (19) 2010-11-18T08:31:41.483196+01:00 MacBookAir kernel: btusb_send_frame: hci0 urb ffff8800374519c0 submission failed 2010-11-18T08:31:41.856341+01:00 MacBookAir kernel: usb 3-6: USB disconnect, address 7 2010-11-18T08:31:41.976284+01:00 MacBookAir kernel: usb 4-2: USB disconnect, address 2 2010-11-18T08:31:41.976321+01:00 MacBookAir kernel: asix 4-2:1.0: eth1: unregister 'asix' usb-0000:00:06.0-2, ASIX AX88772 USB 2.0 Ethernet 2010-11-18T08:31:43.729730+01:00 MacBookAir kernel: usb 1-6: new high speed USB device using ehci_hcd and address 4 2010-11-18T08:31:43.969620+01:00 MacBookAir kernel: usb 1-6: unable to read config index 0 descriptor/start: -71 2010-11-18T08:31:43.969657+01:00 MacBookAir kernel: usb 1-6: chopping to 0 config(s) 2010-11-18T08:31:44.036279+01:00 MacBookAir kernel: usb 1-6: string descriptor 0 read error: -71 2010-11-18T08:31:44.036318+01:00 MacBookAir kernel: usb 1-6: no configuration chosen from 0 choices 2010-11-18T08:31:44.142964+01:00 MacBookAir kernel: usb 2-2: new high speed USB device using ehci_hcd and address 2 2010-11-18T08:31:44.382988+01:00 MacBookAir kernel: usb 2-2: unable to read config index 0 descriptor/start: -71 2010-11-18T08:31:44.383026+01:00 MacBookAir kernel: usb 2-2: chopping to 0 config(s) 2010-11-18T08:31:44.446283+01:00 MacBookAir kernel: usb 2-2: string descriptor 0 read error: -71 2010-11-18T08:31:44.446359+01:00 MacBookAir kernel: usb 2-2: no configuration chosen from 0 choices 2010-11-18T08:31:44.731605+01:00 MacBookAir kernel: usb 3-3: new full speed USB device using ohci_hcd and address 8 2010-11-18T08:31:44.949697+01:00 MacBookAir kernel: input: Apple Inc. Apple Internal Keyboard / Trackpad as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.0/input/input11 2010-11-18T08:31:44.949736+01:00 MacBookAir kernel: apple 0003:05AC:0243.0005: input,hidraw0: USB HID v1.11 Keyboard [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:04.0-3/input0 2010-11-18T08:31:44.962959+01:00 MacBookAir kernel: apple 0003:05AC:0243.0006: hidraw1: USB HID v1.11 Device [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:04.0-3/input1 2010-11-18T08:31:44.966248+01:00 MacBookAir kernel: input: bcm5974 as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.2/input/input12 2010-11-18T08:31:45.246385+01:00 MacBookAir kernel: usb 3-5: new full speed USB device using ohci_hcd and address 9 2010-11-18T08:31:45.449602+01:00 MacBookAir kernel: hub 3-5:1.0: USB hub found 2010-11-18T08:31:45.452897+01:00 MacBookAir kernel: hub 3-5:1.0: 3 ports detected 2010-11-18T08:31:45.756394+01:00 MacBookAir kernel: usb 3-5.1: new full speed USB device using ohci_hcd and address 10 2010-11-18T08:31:45.872906+01:00 MacBookAir kernel: input: HID 05ac:820a as /devices/pci0000:00/0000:00:04.0/usb3/3-5/3-5.1/3-5.1:1.0/input/input13 2010-11-18T08:31:45.872932+01:00 MacBookAir kernel: generic-usb 0003:05AC:820A.0007: input,hidraw2: USB HID v1.11 Keyboard [HID 05ac:820a] on usb-0000:00:04.0-5.1/input0 2010-11-18T08:31:45.943021+01:00 MacBookAir kernel: usb 3-5.2: new full speed USB device using ohci_hcd and address 11 2010-11-18T08:31:46.059630+01:00 MacBookAir kernel: input: HID 05ac:820b as /devices/pci0000:00/0000:00:04.0/usb3/3-5/3-5.2/3-5.2:1.0/input/input14 2010-11-18T08:31:46.059667+01:00 MacBookAir kernel: generic-usb 0003:05AC:820B.0008: input,hidraw3: USB HID v1.11 Mouse [HID 05ac:820b] on usb-0000:00:04.0-5.2/input0 2010-11-18T08:31:46.133015+01:00 MacBookAir kernel: usb 3-5.3: new full speed USB device using ohci_hcd and address 12 2010-11-18T08:31:46.289594+01:00 MacBookAir kernel: usb 3-5.1: USB disconnect, address 10 2010-11-18T08:31:46.436326+01:00 MacBookAir kernel: usb 3-5.2: USB disconnect, address 11 Insmod withe ppcd and lpm workaround : 2010-11-18T08:33:48.729676+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: remove, state 1 2010-11-18T08:33:48.729714+01:00 MacBookAir kernel: usb usb2: USB disconnect, address 1 2010-11-18T08:33:48.729719+01:00 MacBookAir kernel: usb 2-2: USB disconnect, address 2 2010-11-18T08:33:48.729724+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: USB bus 2 deregistered 2010-11-18T08:33:48.729730+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: PCI INT B disabled 2010-11-18T08:33:48.729734+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: remove, state 1 2010-11-18T08:33:48.733419+01:00 MacBookAir kernel: usb usb1: USB disconnect, address 1 2010-11-18T08:33:48.733456+01:00 MacBookAir kernel: usb 1-6: USB disconnect, address 4 2010-11-18T08:33:48.733462+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: USB bus 1 deregistered 2010-11-18T08:33:48.736254+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: PCI INT B disabled 2010-11-18T08:33:49.013103+01:00 MacBookAir kernel: usb 3-6: new full speed USB device using ohci_hcd and address 13 2010-11-18T08:33:49.376384+01:00 MacBookAir kernel: usb 4-2: new full speed USB device using ohci_hcd and address 3 2010-11-18T08:33:50.466262+01:00 MacBookAir kernel: asix 4-2:1.0: eth1: register 'asix' at usb-0000:00:06.0-2, ASIX AX88772 USB 2.0 Ethernet, d8:30:62:a5:da:c1 2010-11-18T08:33:50.952889+01:00 MacBookAir kernel: ehci_hcd: Unknown parameter `diable_ppcd' 2010-11-18T08:33:51.532930+01:00 MacBookAir kernel: eth1: link down 2010-11-18T08:33:51.566226+01:00 MacBookAir kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready 2010-11-18T08:33:52.101568+01:00 MacBookAir kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready 2010-11-18T08:33:52.136219+01:00 MacBookAir kernel: eth1: link up, 100Mbps, full-duplex, lpa 0x45E1 2010-11-18T08:33:58.036278+01:00 MacBookAir kernel: ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver 2010-11-18T08:33:58.036299+01:00 MacBookAir kernel: Warning! ehci_hcd should always be loaded before uhci_hcd and ohci_hcd, not after 2010-11-18T08:33:58.036302+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: power state changed by ACPI to D0 2010-11-18T08:33:58.036305+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: power state changed by ACPI to D0 2010-11-18T08:33:58.036309+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: PCI INT B -> Link[LUS2] -> GSI 22 (level, low) -> IRQ 22 2010-11-18T08:33:58.036312+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: setting latency timer to 64 2010-11-18T08:33:58.036316+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: EHCI Host Controller 2010-11-18T08:33:58.036320+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: new USB bus registered, assigned bus number 1 2010-11-18T08:33:58.036325+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: debug port 1 2010-11-18T08:33:58.059713+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: cache line size of 256 is not supported 2010-11-18T08:33:58.059749+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: irq 22, io mem 0x9328b100 2010-11-18T08:33:58.059754+01:00 MacBookAir kernel: usb 3-3: USB disconnect, address 8 2010-11-18T08:33:58.069610+01:00 MacBookAir kernel: ehci_hcd 0000:00:04.1: USB 2.0 started, EHCI 1.10 2010-11-18T08:33:58.069638+01:00 MacBookAir kernel: hub 1-0:1.0: USB hub found 2010-11-18T08:33:58.069643+01:00 MacBookAir kernel: hub 1-0:1.0: 6 ports detected 2010-11-18T08:33:58.069650+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: power state changed by ACPI to D0 2010-11-18T08:33:58.069655+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: power state changed by ACPI to D0 2010-11-18T08:33:58.069660+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: PCI INT B -> Link[Z001] -> GSI 21 (level, low) -> IRQ 21 2010-11-18T08:33:58.069666+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: setting latency timer to 64 2010-11-18T08:33:58.069670+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: EHCI Host Controller 2010-11-18T08:33:58.069676+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: new USB bus registered, assigned bus number 2 2010-11-18T08:33:58.069681+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: debug port 1 2010-11-18T08:33:58.096264+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: cache line size of 256 is not supported 2010-11-18T08:33:58.096314+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: irq 21, io mem 0x9328b000 2010-11-18T08:33:58.109624+01:00 MacBookAir kernel: ehci_hcd 0000:00:06.1: USB 2.0 started, EHCI 1.10 2010-11-18T08:33:58.109659+01:00 MacBookAir kernel: hub 2-0:1.0: USB hub found 2010-11-18T08:33:58.109664+01:00 MacBookAir kernel: hub 2-0:1.0: 6 ports detected 2010-11-18T08:33:58.113133+01:00 MacBookAir kernel: bcm5974: bcm5974: could not read from device 2010-11-18T08:33:58.239652+01:00 MacBookAir kernel: usb 3-5: USB disconnect, address 9 2010-11-18T08:33:58.239670+01:00 MacBookAir kernel: usb 3-5.3: USB disconnect, address 12 2010-11-18T08:33:58.239676+01:00 MacBookAir kernel: btusb_bulk_complete: hci0 urb ffff88004f33bc00 failed to resubmit (19) 2010-11-18T08:33:58.239681+01:00 MacBookAir kernel: btusb_intr_complete: hci0 urb ffff88002ca2ad80 failed to resubmit (19) 2010-11-18T08:33:58.239687+01:00 MacBookAir kernel: btusb_bulk_complete: hci0 urb ffff88004f33b180 failed to resubmit (19) 2010-11-18T08:33:58.239692+01:00 MacBookAir kernel: btusb_send_frame: hci0 urb ffff88000ec510c0 submission failed 2010-11-18T08:33:58.609598+01:00 MacBookAir kernel: usb 3-6: USB disconnect, address 13 2010-11-18T08:33:58.729609+01:00 MacBookAir kernel: usb 4-2: USB disconnect, address 3 2010-11-18T08:33:58.729646+01:00 MacBookAir kernel: asix 4-2:1.0: eth1: unregister 'asix' usb-0000:00:06.0-2, ASIX AX88772 USB 2.0 Ethernet 2010-11-18T08:33:59.209720+01:00 MacBookAir kernel: usb 1-6: new high speed USB device using ehci_hcd and address 4 2010-11-18T08:33:59.349601+01:00 MacBookAir kernel: uvcvideo: Found UVC 1.00 device Built-in iSight (05ac:850a) 2010-11-18T08:33:59.356276+01:00 MacBookAir kernel: input: Built-in iSight as /devices/pci0000:00/0000:00:04.1/usb1/1-6/1-6:1.0/input/input15 2010-11-18T08:33:59.466223+01:00 MacBookAir kernel: usb 2-2: new high speed USB device using ehci_hcd and address 2 2010-11-18T08:34:00.387460+01:00 MacBookAir kernel: asix 2-2:1.0: eth1: register 'asix' at usb-0000:00:06.1-2, ASIX AX88772 USB 2.0 Ethernet, d8:30:62:a5:da:c1 2010-11-18T08:34:00.666301+01:00 MacBookAir kernel: usb 3-3: new full speed USB device using ohci_hcd and address 14 2010-11-18T08:34:00.886274+01:00 MacBookAir kernel: input: Apple Inc. Apple Internal Keyboard / Trackpad as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.0/input/input16 2010-11-18T08:34:00.886314+01:00 MacBookAir kernel: apple 0003:05AC:0243.0009: input,hidraw0: USB HID v1.11 Keyboard [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:04.0-3/input0 2010-11-18T08:34:00.896290+01:00 MacBookAir kernel: apple 0003:05AC:0243.000A: hidraw1: USB HID v1.11 Device [Apple Inc. Apple Internal Keyboard / Trackpad] on usb-0000:00:04.0-3/input1 2010-11-18T08:34:00.899566+01:00 MacBookAir kernel: input: bcm5974 as /devices/pci0000:00/0000:00:04.0/usb3/3-3/3-3:1.2/input/input17 2010-11-18T08:34:01.179637+01:00 MacBookAir kernel: usb 3-5: new full speed USB device using ohci_hcd and address 15 2010-11-18T08:34:01.383039+01:00 MacBookAir kernel: hub 3-5:1.0: USB hub found 2010-11-18T08:34:01.386235+01:00 MacBookAir kernel: hub 3-5:1.0: 3 ports detected 2010-11-18T08:34:01.422884+01:00 MacBookAir kernel: eth1: link down 2010-11-18T08:34:01.426467+01:00 MacBookAir kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready 2010-11-18T08:34:01.686386+01:00 MacBookAir kernel: usb 3-5.1: new full speed USB device using ohci_hcd and address 16 2010-11-18T08:34:01.799630+01:00 MacBookAir kernel: input: HID 05ac:820a as /devices/pci0000:00/0000:00:04.0/usb3/3-5/3-5.1/3-5.1:1.0/input/input18 2010-11-18T08:34:01.799671+01:00 MacBookAir kernel: generic-usb 0003:05AC:820A.000B: input,hidraw2: USB HID v1.11 Keyboard [HID 05ac:820a] on usb-0000:00:04.0-5.1/input0 2010-11-18T08:34:01.869623+01:00 MacBookAir kernel: usb 3-5.2: new full speed USB device using ohci_hcd and address 17 2010-11-18T08:34:01.982955+01:00 MacBookAir kernel: input: HID 05ac:820b as /devices/pci0000:00/0000:00:04.0/usb3/3-5/3-5.2/3-5.2:1.0/input/input19 2010-11-18T08:34:01.982994+01:00 MacBookAir kernel: generic-usb 0003:05AC:820B.000C: input,hidraw3: USB HID v1.11 Mouse [HID 05ac:820b] on usb-0000:00:04.0-5.2/input0 2010-11-18T08:34:02.052931+01:00 MacBookAir kernel: usb 3-5.3: new full speed USB device using ohci_hcd and address 18 2010-11-18T08:34:02.192880+01:00 MacBookAir kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready 2010-11-18T08:34:02.192891+01:00 MacBookAir kernel: usb 3-5.1: USB disconnect, address 16 2010-11-18T08:34:02.196393+01:00 MacBookAir kernel: eth1: link up, 100Mbps, full-duplex, lpa 0x45E1 2010-11-18T08:34:02.346239+01:00 MacBookAir kernel: usb 3-5.2: USB disconnect, address 17 2010-11-18T08:34:12.426233+01:00 MacBookAir kernel: eth1: no IPv6 routers present lsusb : Bus 002 Device 003: ID 05ac:1402 Apple, Inc. Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 004: ID 05ac:850a Apple, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 024: ID 05ac:821b Apple, Inc. Bus 003 Device 021: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth) Bus 003 Device 020: ID 05ac:0243 Apple, Inc. Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub As you can see, not all devices are connected again after inserting ehci-hcd. In this bug : https://bugzilla.kernel.org/show_bug.cgi?id=21182 you see another user with the same problem. I'm not sure if only Apple users with Nvidia chipset are affected. Please CC me, i'm not subscribed to the list. Signed-off-by: Edgar (gimli) Hucek <gimli@dark-green.com>
