Index: sys/powerpc/powerpc/exec_machdep.c
===================================================================
--- sys/powerpc/powerpc/exec_machdep.c	(revision 367651)
+++ sys/powerpc/powerpc/exec_machdep.c	(working copy)
@@ -334,8 +334,6 @@
 	if (error != 0)
 		return (error);
 
-	kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
-
 	/* 
 	 * Save FPU state if needed. User may have changed it on
 	 * signal handler 
@@ -343,6 +341,9 @@
 	if (uc.uc_mcontext.mc_srr1 & PSL_FP)
 		save_fpu(td);
 
+	/* Restore signal mask. */
+	kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
+
 	CTR3(KTR_SIG, "sigreturn: return td=%p pc=%#x sp=%#x",
 	     td, uc.uc_mcontext.mc_srr0, uc.uc_mcontext.mc_gpr[1]);
 
@@ -836,8 +837,6 @@
 	if (error != 0)
 		return (error);
 
-	kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
-
 	/*
 	 * Save FPU state if needed. User may have changed it on
 	 * signal handler
@@ -845,6 +844,8 @@
 	if (uc.uc_mcontext.mc_srr1 & PSL_FP)
 		save_fpu(td);
 
+	/* Restore signal mask. */
+	kern_sigprocmask(td, SIG_SETMASK, &uc.uc_sigmask, NULL, 0);
 
 	CTR3(KTR_SIG, "sigreturn: return td=%p pc=%#x sp=%#x",
 	     td, uc.uc_mcontext.mc_srr0, uc.uc_mcontext.mc_gpr[1]);