On Mon, 2015-11-23 at 13:05 -0700, Toshi Kani wrote: > An infinite loop of PMD faults was observed when attempted to > mlock() a private read-only PMD mmap'd range of a DAX file. Typo: the above description should be (remove "read-only"): An infinite loop of PMD faults was observed when attempted to mlock() a private PMD mmap'd range of a DAX file. -Toshi > __dax_pmd_fault() simply returns with VM_FAULT_FALLBACK when > falling back to PTE on COW. However, __handle_mm_fault() > returns without falling back to handle_pte_fault() because > a PMD map is present in this case. > > Change __dax_pmd_fault() to split the PMD map, if present, > before returning with VM_FAULT_FALLBACK. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
