On Fri, Feb 26, 2021 at 07:47:02PM -0800, Yonghong Song wrote: > > test_snprintf_btf fails on s390, because NULL points to a readable > > struct lowcore there. Fix by using the last page instead. > > > > Error message example: > > > > printing 0000000000000000 should generate error, got (361) > > > > Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx> > > --- > > v2 -> v3: Heiko mentioned that using _REGION1_SIZE is not future-proof. > > We had a private discussion and came to the conclusion that > > the the last page is good enough. > > Heiko, could you ack the patch if it is okay? Thanks! Yes, sure. Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>