Hi, On Fri, May 24, 2019 at 09:40:30AM +0200, Christophe Leroy wrote: > Le 24/05/2019 à 09:36, Aaro Koskinen a écrit : > >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 > > > > Oops, I forgot to call update_bats() after setibat(). > > Can you add it and retry ?
Thanks, that was it, now it finally works! A.
