On Thu, 19 May 2016 15:35:15 -0700 "Shi, Yang" yang.shi@linaro.org wrote:
On 5/19/2016 3:30 PM, Andrew Morton wrote:
On Thu, 19 May 2016 14:29:05 -0700 Yang Shi yang.shi@linaro.org wrote:
When DEFERRED_STRUCT_PAGE_INIT is enabled, just a subset of memmap at boot are initialized, then the rest are initialized in parallel by starting one-off "pgdatinitX" kernel thread for each node X.
If page_ext_init is called before it, some pages will not have valid extension, so move page_ext_init() after it.
<stdreply>When fixing a bug, please fully describe the end-user impact of that bug</>
The kernel ran into the below oops which is same with the oops reported in http://ozlabs.org/~akpm/mmots/broken-out/mm-page_is_guard-return-false-when-....
So this patch makes mm-page_is_guard-return-false-when-page_ext-arrays-are-not-allocated-yet.patch obsolete?