Hi, On Fri, May 24, 2019 at 08:08:36AM +0200, Christophe Leroy wrote: > >Le 24/05/2019 à 00:23, Aaro Koskinen a écrit : > >>Unfortunately still no luck... The crash is pretty much the same with > >>both > >>changes. > > > >Right. In fact change_page_attr() does nothing because this part of RAM is > >mapped by DBATs so v_block_mapped() returns not NULL. > > > >So, we have to set an IBAT for this area. I'll try and send you a new > >patch for that before noon (CET). > > > > patch sent out. In the patch I have also added a printk to print the buffer > address, so if the problem still occurs, we'll know if the problem is really > at the address of the buffer or if we are wrong from the beginning.
Reboot code buffer at ef0c3000 Bye! BUG: Unable to handle kernel instruction fetch Faulting instruction address: 0xef0c3000 A.