On 03/07/18 12:11 PM, Fabio Estevam wrote: > On Tue, Jul 3, 2018 at 3:09 PM, Andy Shevchenko > <andy.shevchenko@xxxxxxxxx> wrote: > >> Btw, what is the environment did you use to build it? >> and what is the environment / make variable you supply (like ARCH, >> CROSS_COMPILE, etc)? > > I build it on a Dell laptop running Ubuntu 16.04 with the following > variables exported: > > export ARCH=arm > export CROSS_COMPILE=/usr/bin/arm-linux-gnueabi- Ok, I'm at a bit of a loss... When I look at the assembly before and after the patch, it looks pretty much the same. Additionally, the function where the undefined exception occurs (caam_jr_interrupt()) doesn't make any use of wr_reg64 or rd_reg64 which is the only thing the patch changes... Also, it looks like the nonatomic headers are doing what they are supposed to on this arch and generating two 32-bit ios and not a 64 bit one. So I have no idea what's going on here... Are we sure this is the patch causing the problem? Did you bisect? Thanks, Logan
