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SubjectRe: [PATCH] Revert "mm/cma: manage the memory of the CMA area by using the ZONE_MOVABLE"
On Mon, 21 May 2018 15:16:33 +0900 Joonsoo Kim <js1304@gmail.com> wrote:

> > (gdb) list *(dma_direct_alloc+0x22f)
> > 0x573fbf is in dma_direct_alloc (../lib/dma-direct.c:104).
> > 94
> > 95 if (!page)
> > 96 return NULL;
> > 97 ret = page_address(page);
> > 98 if (force_dma_unencrypted()) {
> > 99 set_memory_decrypted((unsigned long)ret, 1 << page_order);
> > 100 *dma_handle = __phys_to_dma(dev, page_to_phys(page));
> > 101 } else {
> > 102 *dma_handle = phys_to_dma(dev, page_to_phys(page));
> > 103 }
> > 104 memset(ret, 0, size);
> > 105 return ret;
> > 106 }
> >
>
> Okay. I find the reason about this error.

It's getting rather late and we don't seem to have a final set of fixes
yet. Perhaps the best approach here is to revert and try again for
4.18?

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