Quoting Joerg Roedel (2020-08-21 13:37:46) > From: Joerg Roedel <jroedel@xxxxxxx> > > The __apply_to_page_range() function is also used to change and/or > allocate page-table pages in the vmalloc area of the address space. > Make sure these changes get synchronized to other page-tables in the > system by calling arch_sync_kernel_mappings() when necessary. > > Tested-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> #x86-32 > Cc: <stable@xxxxxxxxxxxxxxx> # v5.8+ > Signed-off-by: Joerg Roedel <jroedel@xxxxxxx> I've doubled check that this patch by itself fixes our x86-32 vmapping issue. Thanks, -Chris