It seems 2.6.11 preemption kernel is broken. The preempt_schedule_irq() expects preempt_count is 0. Also trailing branch instructino have been lost. How about this fix? --- linux-mips/arch/mips/kernel/entry.S 2005-02-10 11:27:50.000000000 +0900 +++ linux/arch/mips/kernel/entry.S 2005-03-04 17:09:53.000000000 +0900 @@ -58,9 +58,8 @@ LONG_L t0, PT_STATUS(sp) # Interrupts off? andi t0, 1 beqz t0, restore_all - li t0, PREEMPT_ACTIVE - sw t0, TI_PRE_COUNT($28) jal preempt_schedule_irq + b need_resched #endif FEXPORT(ret_from_fork) --- Atsushi Nemoto
