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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Sat, 1 Sep 2012 15:50:52 +0000 (UTC)
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Subject: svn commit: r239992 - stable/9/sys/i386/i386
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Author: kib
Date: Sat Sep  1 15:50:52 2012
New Revision: 239992
URL: http://svn.freebsd.org/changeset/base/239992

Log:
  MFC r238675:
  Force clean FPU state in PCB user FPU save area for PT_I386_{GET,SET}XMMREGS.

Modified:
  stable/9/sys/i386/i386/ptrace_machdep.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/i386/i386/ptrace_machdep.c
==============================================================================
--- stable/9/sys/i386/i386/ptrace_machdep.c	Sat Sep  1 14:45:15 2012	(r239991)
+++ stable/9/sys/i386/i386/ptrace_machdep.c	Sat Sep  1 15:50:52 2012	(r239992)
@@ -54,10 +54,12 @@ cpu_ptrace(struct thread *td, int req, v
 	fpstate = &td->td_pcb->pcb_user_save.sv_xmm;
 	switch (req) {
 	case PT_GETXMMREGS:
+		npxgetregs(td);
 		error = copyout(fpstate, addr, sizeof(*fpstate));
 		break;
 
 	case PT_SETXMMREGS:
+		npxgetregs(td);
 		error = copyin(addr, fpstate, sizeof(*fpstate));
 		fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
 		break;