On 26/12/13 06:39, Zhang, Yang Z wrote: > > Any conclusion for this issue? Our custom also saw the same issue > that they want to map an MMIO to userspace address(through UIO > approach), but current ->mmap function call remap_pfn_range without > setting _PAGE_IOMAP and cause the host crashed. It seems all > userspace device drivers that tries to map device's mmio will caused > host crashed. > > They are using 3.10 kernel.
My first attempt at fixing this was broken and I need to find time for another look. There were problems with pages that started out pre-ballooned. David -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
