The 04/24/2020 12:47, Richard Henderson wrote: > On 4/21/20 9:39 PM, Richard Henderson wrote: > > Yep. I failed to update aarch64_pstate_valid_mask for TCO. > > Will fix. Thanks, > > Fixed on the branch. > > I still need to work out how best to plumb the arm,armv8.5-memtag property so > the devel/mte-v3 kernel branch isn't usable as-is for the moment. For myself, > I've just commented that test out for now.
The fix worked well thanks (in linux devel/mte-v3 i reverted the patch that introduced arm,armv8.5-memtag) However later on during testing malloc with PROT_MTE i got a qemu assert failure: Bail out! ERROR:/S/target/arm/mte_helper.c:97:allocation_tag_mem: assertion failed: (tag_size <= in_page) i can reproduce it, but i don't know how to debug it further, i don't know what the application is doing when this happens, nor what the kernel is doing. i rebuilt qemu with --enable-debug but now it's very slow (still booting into linux 3h later). let me know if there are ways to narrow this down.
