dmapool regression in next

From: Tony Lindgren
Date: Wed Dec 05 2018 - 20:31:03 EST


Hi,

Looks like with commit 26abe88e830d ("mm/dmapool.c: improve scalability
of dma_pool_free()") I'm now getting spammed with lots of "(bad vaddr)"
on at least omap4 pandaboard, see below.

Any ideas what might be going wrong?

Regards,

Tony

8< ---------------------
omap-dma-engine 4a056000.dma-controller: dma_pool_free 4a056000.dma-controller, (ptrval) (bad vaddr)/0xbe800000
omap-dma-engine 4a056000.dma-controller: dma_pool_free 4a056000.dma-controller, (ptrval) (bad vaddr)/0xbe80001c
omap-dma-engine 4a056000.dma-controller: dma_pool_free 4a056000.dma-controller, (ptrval) (bad vaddr)/0xbe800038
...