From 3045d2870b0b35f1ded037b4ef79bcfcd7ae5e43 Mon Sep 17 00:00:00 2001
From: Ben Gras <ben@minix3.org>
Date: Tue, 5 Feb 2013 17:17:19 +0100
Subject: [PATCH] arm: protect state after signal handler

	. set MF_CONTEXT_SET after signal handler state
	  is set so it doesn't get clobbered by the kernel
	  afterwards (i.e. by delivermsg()).

fixes at least test41.

Change-Id: I7e5e0e9311c8bbc1c0a9c7ca466ceddd9edfa03f
---
 kernel/system/do_sigsend.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/system/do_sigsend.c b/kernel/system/do_sigsend.c
index eeb13f6c7..6c6e9babe 100644
--- a/kernel/system/do_sigsend.c
+++ b/kernel/system/do_sigsend.c
@@ -92,6 +92,7 @@ int do_sigsend(struct proc * caller, message * m_ptr)
   rp->p_reg.retreg = (reg_t) fr.sf_signo;
   rp->p_reg.r1 = (reg_t) fr.sf_code;
   rp->p_reg.r2 = (reg_t) fr.sf_scp;
+  rp->p_misc_flags |= MF_CONTEXT_SET;
 #endif
 
   /* Copy the sigframe structure to the user's stack. */
-- 
2.11.4.GIT