Am Montag, 24. Januar 2022, 18:41:27 CET schrieb John David Anglin:
> On 2022-01-24 12:24 p.m., John David Anglin wrote:
> > Faulting instruction is "ldw 18(r3),r24".  Address in $r3 (and $r5) seems 
> > bad.  Think the sglist argument
> > to sba_unmap_sg() is bad.  Don't have a clue as to why this might be.
> Maybe try interchanging operands of following &&
> 
>          while (sg_dma_len(sglist) && nents--) {
> 
> so nents is checked first.

But nents would be increased then even for the case that sg_dma_len() returns 
false, which may or may not be wanted.