On Thu, 19 May 2016 15:35:15 -0700 "Shi, Yang" <yang.shi@xxxxxxxxxx> wrote: > On 5/19/2016 3:30 PM, Andrew Morton wrote: > > On Thu, 19 May 2016 14:29:05 -0700 Yang Shi <yang.shi@xxxxxxxxxx> 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-page_ext-arrays-are-not-allocated-yet.patch. So this patch makes mm-page_is_guard-return-false-when-page_ext-arrays-are-not-allocated-yet.patch obsolete? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>