At Sat, 21 Feb 2015 09:58:04 +0000,
Al Viro wrote:

On Sat, Feb 21, 2015 at 04:53:47PM +0900, Yoshinori Sato wrote:

quoted

+resume_userspace:
+	andc	#0xbf,ccr
+	mov.l	sp,er4
+	and.w	#0xe000,r4		/* er4 <- current thread info */
+	mov.l	@(TI_FLAGS:16,er4),er1
+	and.l	#_TIF_WORK_MASK,er1
+	beq	restore_all:8
+work_pending:
+	btst	#TIF_NEED_RESCHED,r1l
+	bne	work_resched:8
+	/* work notifysig */
+	mov.l	sp,er0
+	subs	#4,er0			/* er0: pt_regs */
+	jsr	@do_notify_resume
+	bra	restore_all:8

This is wrong.  You really need to handle multiple signals; it ought to
reload er1 and recheck it (or just branch to resume_userspace instead)

OK.
Fixed.

-- 
Yoshinori Sato
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