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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2025 04:30:20.1273 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e0e0f5de-3974-4601-6ad9-08ddd56b1e41 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DB5PEPF00014B99.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: GV2PR08MB8678 Hi Nicholas, I was looking at all the previous discussions at [1] and [2], wherein vmalloc-huge was switched on by default, and then had to be switched off on all arches after an year... a) I am wondering whether ppc supports vmalloc-huge by default right now? It doesn't look like it since the VM_ALLOW_HUGE_VMAP flag is still there. b) From reading all the discussions, I could only figure two problems with vmalloc-huge - one being the drivers operating on tail pages of a large page, thus needing us to split the compound page, which has been solved. The other being partial permission change. Is there any other case I am missing, or any other problems you speculate? [1] https://lore.kernel.org/all/20220422060107.781512-2-npiggin@gmail.com/ [2] https://lore.kernel.org/all/20220415164413.2727220-1-song@kernel.org/