diff --color -ur NVIDIA-Linux-x86_64-390.157-no-compat32.orig/kernel/nvidia-uvm/uvm8.c NVIDIA-Linux-x86_64-390.157-no-compat32/kernel/nvidia-uvm/uvm8.c
--- NVIDIA-Linux-x86_64-390.157-no-compat32.orig/kernel/nvidia-uvm/uvm8.c	2022-10-12 11:30:28.000000000 +0200
+++ NVIDIA-Linux-x86_64-390.157-no-compat32/kernel/nvidia-uvm/uvm8.c	2023-05-27 21:31:28.027398157 +0200
@@ -658,7 +658,7 @@
     // Using VM_DONTCOPY would be nice, but madvise(MADV_DOFORK) can reset that
     // so we have to handle vm_open on fork anyway. We could disable MADV_DOFORK
     // with VM_IO, but that causes other mapping issues.
-    vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND;
+    nv_vm_flags_set(vma, VM_MIXEDMAP | VM_DONTEXPAND | VM_DONTCOPY);
 
     vma->vm_ops = &uvm_vm_ops_managed;