On Tue, Dec 08, 2015 at 12:16:51AM +0100, Arnd Bergmann wrote:
> As far as I know, x86 is the special case here, on all other architectures, > this actually checks the task, and it's impossible to call a system call > of the other kind.
sparc uses ta 0x10 for 32bit syscalls and ta 0x6d for 64bit ones. And yes, the same process can call both just fine.