From: Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> Date: Tue, 18 Dec 2007 00:53:03 +0100 > The fault happens due to dma_sync_single_for_device() which > drivers/firewire/fw-ohci.c calls in ar_context_add_page() when still > being in its pci_probe method. I suspect that --- at least on Sparc and > after 2.6.22 --- it is not possible anymore to use dma_sync_* before the > pci_device's or device's probe was finished. > > Would that be a bug in the Sparc platform code? Or a bug in driver core > code or in PCI code? Or am I expected to refrain from dma_sync_* calls > until after the probe returned? The problem is likely what device struct you are passing to dma_sync_single_for_device(), it has to be a real pci_dev or similar that has it's dev_archdata properly initialized. I bet dev_archdata in whatever "struct device" is being passed in has a NULL iommu pointer or something like that. Oh yeah, I see what you're doing, that won't work, please pass in the correct device struct pointer. Please pass in the &pci_dev->dev not this ohci->card.device thing. - To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
