In sn_io_slot_fixup(), the parent is re-set from the bus to io(port|mem)_resource because the address is changed in a way that it's not child of the bus any more. However, only the root is set but not the parent/child/sibling relationship in the resource tree which causes 'cat /proc/iomem' to stop after this memory area. Depding on the poition in the tree the iomem may be nearly completely empty. Signed-off-by: Bernhard Walle <bwalle@xxxxxxx> --- arch/ia64/sn/kernel/io_init.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) Index: b/arch/ia64/sn/kernel/io_init.c =================================================================== --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -247,10 +247,18 @@ sn_io_slot_fixup(struct pci_dev *dev) addr = ((addr << 4) >> 4) | __IA64_UNCACHED_OFFSET; dev->resource[idx].start = addr; dev->resource[idx].end = addr + size; + + /* + * if it's already in the device structure, remove it before + * inserting + */ + if (dev->resource[idx].parent && dev->resource[idx].parent->child) + release_resource(&dev->resource[idx]); + if (dev->resource[idx].flags & IORESOURCE_IO) - dev->resource[idx].parent = &ioport_resource; + insert_resource(&ioport_resource, &dev->resource[idx]); else - dev->resource[idx].parent = &iomem_resource; + insert_resource(&iomem_resource, &dev->resource[idx]); /* If ROM, mark as shadowed in PROM */ if (idx == PCI_ROM_RESOURCE) dev->resource[idx].flags |= IORESOURCE_ROM_BIOS_COPY; - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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