On Tue, Jul 28, 2015 at 07:55:55PM +0200, Gerald Schaefer wrote: > On s390, this eventually leads to a kernel panic when binding the device > again to its non-vfio PCI driver, because of the missing arch-specific > cleanup in detach_dev. On x86, the detach_dev callback will also not be > called directly, but there is a notifier that will catch > BUS_NOTIFY_REMOVED_DEVICE and eventually do the cleanup. Other > architectures w/o the notifier probably have at least some kind of memory > leak in this scenario, so a general fix would be nice.
This notifier is not arch-specific, but registered against the bus the iommu-ops are set for. Why does it not run on s390? Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu