From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kip Macy <kip.macy@gmail.com>
Subject: [PATCH] xc_ptrace.c fix
Date: Sat, 2 Jul 2005 18:07:59 -0700
Message-ID: <b1fa291705070218077e176e28@mail.gmail.com>
Reply-To: Kip Macy <kip.macy@gmail.com>
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Could you please apply the following trivial patch (yes I know, gmail
screws up whitespace). It fixes a crash in the gdbserver that can be
hit when debugging linux.


--- a/tools/libxc/xc_ptrace.c   Fri Jul  1 21:25:45 2005
+++ b/tools/libxc/xc_ptrace.c   Sun Jul  3 01:05:21 2005
@@ -200,7 +200,7 @@
                                             pde_phys[cpu] >>
PAGE_SHIFT)) =3D=3D NULL)
            goto error_out;
     }
-    if ((page =3D pde_virt[cpu][vtopti(va)]) =3D=3D 0) /* logical address =
*/
+    if ((pde_virt[cpu] =3D=3D NULL) || (page =3D pde_virt[cpu][vtopti(va)]=
)
=3D=3D 0) /* logical address */
        goto error_out;
     if (ctxt[cpu].flags & VGCF_VMX_GUEST)
         page =3D page_array[page >> PAGE_SHIFT] << PAGE_SHIFT;