--- linux-2.4.29/arch/sparc/kernel/process.c.orig	2005-01-26 08:38:01.000000000 +0100
+++ linux-2.4.29/arch/sparc/kernel/process.c	2005-01-26 08:38:54.000000000 +0100
@@ -3,6 +3,8 @@
  *
  *  Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
  *  Copyright (C) 1996 Eddie C. Dost   (ecd@skynet.be)
+ *
+ *	2005-01-26	Krzysztof Helt	-	cleared PSR_EF in copy_thread
  */
 
 /*
@@ -512,6 +514,10 @@
 		}
 	}
 
+  	/* FPU must be disabled in SMP. */
+  	/* It does not hurt in UP either. */
+  	childregs->psr &= ~PSR_EF;
+  
 	/* Set the return value for the child. */
 	childregs->u_regs[UREG_I0] = current->pid;
 	childregs->u_regs[UREG_I1] = 1;