On Wed, Nov 18, 2015 at 1:33 PM, Toshi Kani <toshi.kani@xxxxxxx> wrote: > I am seeing a similar/same problem in my test. I think the problem is that in > case of a WP fault, wp_huge_pmd() -> __dax_pmd_fault() -> vmf_insert_pfn_pmd(), > which is a no-op since the PMD is mapped already. We need WP handling for this > PMD map. > > If it helps, I have attached change for follow_trans_huge_pmd(). I have not > tested much, though. Interesting, I didn't get this far because my tests were crashing the kernel. I'll add this case the pmd fault test in ndctl. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
