Dave Hansen <dave.hansen@xxxxxxxxx> writes: > On 11/05/2014 07:21 AM, Masanari Iida wrote: >> Luiz, Dave, >> Thanks for comments. >> >> I understand that there are some exception cases which doesn't support 1G >> large pages on newer CPUs. >> I like Dave's example, at the same time I would like to add "pdpe1gb flag" in >> the document. >> >> For example, x86 CPUs normally support 4K and 2M (1G if pdpe1gb flag exist). > > Is 1G supported on CPUs that have pdpe1gb and are running a 32-bit kernel? No, 1GB pages is a 64bit only feature. -Andi -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only -- 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>