Hi, On Tuesday, 18 of October 2005 03:01, Alan Stern wrote: > On Mon, 17 Oct 2005, Rafael J. Wysocki wrote: > > On Monday, 17 of October 2005 20:54, Alan Stern wrote: > > > On Mon, 17 Oct 2005, Pavel Machek wrote: > > > > > > > Hi! > > > > > > > > In -mm, usb breaks suspend to disk. Compiled without > > > > CONFIG_USB_SUSPEND, it just plainly fails; iwth USB_SUSPEND, it > > > > actually tries to suspend USB, but it fails and machine refuses to > > > > suspend. Is it known or is it worth debugging? > > > > > > More details please. > > > > Fails for me too on x86-64, with the following messages: > > > > Stopping tasks: ========================| > > Freeing memory... done (14642 pages freed) > > Suspending device card0-0 > > Suspending device 2-2:1.0 > > Suspending device 2-2 > > Suspending device 3-0:1.0 > > hub 3-0:1.0: no suspend? > > Suspending device usb3 > > Could not suspend device usb3: error -16 > > Some devices failed to suspend > > Restarting tasks... done > > > > where the USB-related info returned by the kernel is this: > > > > ohci_hcd: 2005 April 22 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI) > > ACPI: PCI Interrupt Link [LUS0] enabled at IRQ 11 > > ACPI: PCI Interrupt 0000:00:02.0[A] -> Link [LUS0] -> GSI 11 (level, low) -> IRQ 11 > > PCI: Setting latency timer of device 0000:00:02.0 to 64 > > ohci_hcd 0000:00:02.0: OHCI Host Controller > > ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 1 > > ohci_hcd 0000:00:02.0: irq 11, io mem 0xfebfb000 > > hub 1-0:1.0: USB hub found > > hub 1-0:1.0: 3 ports detected > > ACPI: PCI Interrupt Link [LUS1] enabled at IRQ 11 > > ACPI: PCI Interrupt 0000:00:02.1[B] -> Link [LUS1] -> GSI 11 (level, low) -> IRQ 11 > > PCI: Setting latency timer of device 0000:00:02.1 to 64 > > ohci_hcd 0000:00:02.1: OHCI Host Controller > > ohci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 2 > > ohci_hcd 0000:00:02.1: irq 11, io mem 0xfebfc000 > > hub 2-0:1.0: USB hub found > > hub 2-0:1.0: 3 ports detected > > ACPI: PCI Interrupt Link [LUS2] enabled at IRQ 5 > > usb 2-2: new low speed USB device using ohci_hcd and address 2 > > PCI: setting IRQ 5 as level-triggered > > ACPI: PCI Interrupt 0000:00:02.2[C] -> Link [LUS2] -> GSI 5 (level, low) -> IRQ 5 > > PCI: Setting latency timer of device 0000:00:02.2 to 64 > > ehci_hcd 0000:00:02.2: EHCI Host Controller > > ehci_hcd 0000:00:02.2: debug port 1 > > ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 3 > > ehci_hcd 0000:00:02.2: irq 5, io mem 0xfebfdc00 > > PCI: cache line size of 64 is not supported by device 0000:00:02.2 > > ehci_hcd 0000:00:02.2: park 0 > > ehci_hcd 0000:00:02.2: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004 > > usb 2-2: device descriptor read/all, error -110 > > hub 3-0:1.0: USB hub found > > hub 3-0:1.0: 6 ports detected > > ohci_hcd 0000:00:02.1: wakeup > > usb 2-2: new low speed USB device using ohci_hcd and address 4 > > usbcore: registered new driver hiddev > > input: Logitech USB Receiver//class/input_dev as input3 > > input: USB HID v1.10 Mouse [Logitech USB Receiver] on usb-0000:00:02.1-2 > > usbcore: registered new driver usbhid > > drivers/usb/input/hid-core.c: v2.6:USB HID core driver > > > > Greetings, > > Rafael > > Weird. > > I can't tell what happened. But I can tell you that USB development > goes on in Greg K-H's tree. The current version is available as a patch > based on 2.6.14-rc4: > > http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-all-2.6.14-rc4.patch > > On top of that you should apply the patch for uhci-hcd that I mentioned > before. With this combination I have had no problem suspending three > different machines. Sometimes they even wake up, too! :-) Thanks a lot for all the information. Still I'd rather like to figure out what causes the problem to appear in -rc4-mm1. So far I have identified the offending patch which is: gregkh-usb-usb-power-state-03.patch (ie. with the patch the problem occurs 100% of the time and without the patch it doesn't). I don't know which change in the patch is at fault (yet). [Note: the patch didn't revert cleanly so I changed the 7th chunk in drivers/usb/core/hub.c a bit.] The devices that refuse to suspend (with the above patch) are: usb usb3: Product: EHCI Host Controller usb usb3: Manufacturer: Linux 2.6.14-rc4-mm1 ehci_hcd usb usb3: SerialNumber: 0000:00:02.2 usb usb2: Product: OHCI Host Controller usb usb2: Manufacturer: Linux 2.6.14-rc4-mm1 ohci_hcd usb usb2: SerialNumber: 0000:00:02.1 Greetings, Rafael
