On Tue, Apr 17, 2012 at 11:11:04AM -0400, Alan Stern wrote: > Just to make sure, did you test the patch with the script installed > (that is, with ehci-hcd unbound)? I assume that will work normally. It works normally, yes. > > Moving on, the next thing is to remove changes from the patch, one at a > time, until we find one that prevents the system from resuming. So, > testing at each step, please remove from the patch: > > 1. This change in hcd-pci.c: > + pci_dev->current_state = PCI_UNKNOWN; It locks up if this line is removed. > 2. This change in ehci-pci.c: > + ehci_silence_controller(ehci); > > 3. This change in hcd-pci.c: > + pci_disable_device(pci_dev); > > 4. This change in hcd-pci.c: > + iounmap(hcd->regs); > > 5. This change in hcd-pci.c: > + free_irq(hcd->irq, hcd); > > 6. This change in hcd-pci.c: > - pci_disable_device(pci_dev); > + pci_disable_enabled_device(pci_dev); > > 7. This change in ehci-pci.c: > - ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup); > > Once all those things have been removed, the patch should be the same > as one you tried earlier, which did crash the machine. -- WBR, wRAR
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