clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); clear_tsk_thread_flag(child, TIF_SYSCALL_EMU); 
void ptrace_disable(struct task_struct *child){ 	clear_singlestep(child);}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/ab1c23c24471c760c573f4fb0dd78e166ddfd844/ptrace.c/buggy/arch/i386/kernel/ptrace.c