Guillaume Gardet - 10:13 22.11.13 wrote:
Le 22/11/2013 09:55, Guillaume Gardet a écrit :
Le 22/11/2013 09:12, Michal Hrusecky a écrit :
today I tried upgrading openSUSE on my tablet (Tegra2) from 12.3 to 13.1 and I ended up with invalid instruction errors just after update of glibc. My guess is that glibc was compiled with neon support enabled. Was there any decision to drop non-neon devices or is it simply a bug? Is it just glibc that has neon enabled or everything? I know that for 32bits we have two glibc packages, maybe something similar would be possible for armv7?
AFAIK, neon should not be enabled by default, so this is a big bug. Someone else noticed this bug few days ago, on a Mirabox (Marvel SoC).
All my ARM boards are neon capable so I cannot test. :(
Maybe Alex, or Dirk, could help here?
Apparently, glibc is now capable of multiarch for armv7. Which mean that it can auto-detect if hardware is neon capable, or not. For that, we need to build glibc with multi-arch option enabled, which is not the case right now. Without multiarch enabled, no tests are performed and assume that neon is present.
I am building glibc with multi-arch enabled. Once built, could you test if it fix your problem?