On Tue, Nov 1, 2022 at 3:28 AM TGSP <tgsp002@xxxxxxxxx> wrote: > > From: xiongxin <xiongxin@xxxxxxxxxx> > > Added a check on the return value of preallocate_image_highmem(). If > memory preallocate is insufficient, S4 cannot be done; > > I am playing 4K video on a machine with AMD or other graphics card and > only 8GiB memory, and the kernel is not configured with CONFIG_HIGHMEM. > When doing the S4 test, the analysis found that when the pages get from > minimum_image_size() is large enough, The preallocate_image_memory() and > preallocate_image_highmem() calls failed to obtain enough memory. Add > the judgment that memory preallocate is insufficient; So I'm not sure what the problem is. Can you please explain it in more detail? The if (pages < alloc) appears to be false in your case, so there should be enough free pages to create an image. Maybe reserved_size is too low?
