On Fri, 15 Apr 2011, Ben Hutchings wrote: > On Wed, 2011-04-13 at 18:32 +0200, Hans-J. Ullrich wrote: > [...] > > I get massive messages from the kernel "unable to enumerate USB device > > on port 6" which is making the pc slower and > > which is filling up my syslog. The problem is caused by the ohci-hcd > > kernel module. Unloading it, is stopping > > the messages, but then the mouse will not work (of course). > > > > This bug appeared the first time at the change from > > linux-image-2.6.32-5-amd64-30 --> linux-image-2.6.32-5-amd64-31 (and > > higher!) > > and it appeared only on 64-bit-systems. > [...] > > The only change to ohci-hcd between these versions was: > > commit 5f528de0ef9b3e092e276d95930830b847b33dc4 > Author: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Date: Fri Sep 10 16:37:05 2010 -0400 > > OHCI: work around for nVidia shutdown problem > > commit 3df7169e73fc1d71a39cffeacc969f6840cdf52b upstream. > > The reporter's system does indeed have an nVidia MCP67 chipset. Full > details (kernel log, lspci, etc.) are at <http://bugs.debian.org/620848> > and <http://bugs.debian.org/622649>. Hans, can you test whether the patch below fixes your problem? Alan Stern Index: usb-2.6/drivers/usb/host/ohci-pci.c =================================================================== --- usb-2.6.orig/drivers/usb/host/ohci-pci.c +++ usb-2.6/drivers/usb/host/ohci-pci.c @@ -207,10 +207,18 @@ static int ohci_quirk_amd700(struct usb_ */ static int ohci_quirk_nvidia_shutdown(struct usb_hcd *hcd) { + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); struct ohci_hcd *ohci = hcd_to_ohci(hcd); - ohci->flags |= OHCI_QUIRK_SHUTDOWN; - ohci_dbg(ohci, "enabled nVidia shutdown quirk\n"); + /* Evidently nVidia fixed their later hardware; this is a guess at + * the changeover point. + */ +#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_USB 0x026d + + if (pdev->device < PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_USB) { + ohci->flags |= OHCI_QUIRK_SHUTDOWN; + ohci_dbg(ohci, "enabled nVidia shutdown quirk\n"); + } return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
