3 files changed, 12 insertions, 4 deletions

diff --git a/arch/um/drivers/vde_user.c b/arch/um/drivers/vde_user.c
index 56533db25343..c5c43253e6ce 100644
--- a/arch/um/drivers/vde_user.c
+++ b/arch/um/drivers/vde_user.c
@@ -78,7 +78,7 @@ void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
 {
         struct vde_open_args *args;
 
-        vpri->args = kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
+        vpri->args = uml_kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
         if (vpri->args == NULL) {
                 printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args "
                        "allocation failed");
@@ -91,8 +91,8 @@ void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
         args->group = init->group;
         args->mode = init->mode ? init->mode : 0700;
 
-        args->port ?  printk(UM_KERN_INFO "port %d", args->port) :
-                printk(UM_KERN_INFO "undefined port");
+        args->port ?  printk("port %d", args->port) :
+                printk("undefined port");
 }
 
 int vde_user_read(void *conn, void *buf, int len)
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 15e8b7c4de13..8e3d69e4fcb5 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -64,6 +64,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                 ret = poke_user(child, addr, data);
                 break;
 
+        case PTRACE_SYSEMU:
+        case PTRACE_SYSEMU_SINGLESTEP:
+                ret = -EIO;
+                break;
+
         /* continue and stop at next (return from) syscall */
         case PTRACE_SYSCALL:
         /* restart after signal. */
diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index 74f49bb9b125..89b48a116a89 100644
--- a/arch/um/os-Linux/user_syms.c
+++ b/arch/um/os-Linux/user_syms.c
@@ -14,7 +14,6 @@
 #undef memset
 
 extern size_t strlen(const char *);
-extern void *memcpy(void *, const void *, size_t);
 extern void *memmove(void *, const void *, size_t);
 extern void *memset(void *, int, size_t);
 extern int printf(const char *, ...);
@@ -24,7 +23,11 @@ extern int printf(const char *, ...);
 EXPORT_SYMBOL(strstr);
 #endif
 
+#ifndef __x86_64__
+extern void *memcpy(void *, const void *, size_t);
 EXPORT_SYMBOL(memcpy);
+#endif
+
 EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(printf);