> The code base I'm dealing with is a 2.6.13 derivative > with PREEMPT_RT support. Looks like the problem was > due to PREEMPT_RT confusing fpu_emulator_cop1Handler() > resulting in a SIGBUS nailing the associated task. > > I have it sort of working for soft FPU but expect it > requires some attention to safely access a HW FPU where > emulation assistance is needed. > Um, did no one have a look at Atsushi Nemoto's patch earlier today that addressed pre-emption and CPU1, or am I missing something? -Steve
