Peek __mach_task_self_ value before proc_dostop call to work around kernel paging...

diff --git a/sysdeps/mach/hurd/fork.c b/sysdeps/mach/hurd/fork.c
index 66b1ba84c701824be4eaed620b76dec8b1c1beb0..25279645ee7da840a4c048b100afadcd6d8be223 100644 (file)
--- a/sysdeps/mach/hurd/fork.c
+++ b/sysdeps/mach/hurd/fork.c
@@ -109,7 +109,7 @@ __fork (void)
          __mutex_lock (*p);
       }
       __mutex_lock (&_hurd_siglock);
-      
+
       newtask = MACH_PORT_NULL;
       thread = sigthread = MACH_PORT_NULL;
       newproc = MACH_PORT_NULL;
@@ -121,6 +121,8 @@ __fork (void)
        __spin_lock (&_hurd_ports[i].lock);
       ports_locked = 1;
 
+      *(volatile task_t *) &__mach_task_self_; /* XXX work around kernel bug */
+
       /* Stop all other threads while copying the address space,
         so nothing changes.  */
       err = __proc_dostop (_hurd_ports[INIT_PORT_PROC].port, ss->thread);
@@ -189,7 +191,7 @@ __fork (void)
                             (__task_get_special_port (newtask,
                                                       TASK_NOTIFY_PORT,
                                                       &notify_port) == 0 &&
-                             __mach_port_extract_right 
+                             __mach_port_extract_right
                              (newtask,
                               portnames[i],
                               MACH_MSG_TYPE_MAKE_SEND,
@@ -442,7 +444,7 @@ __fork (void)
        if (err)
          LOSE;
       }
-           
+
       /* Set the child signal thread up to run the msgport server function
         using the same signal thread stack copied from our address space.
         We fetch the state before longjmp'ing it so that miscellaneous
@@ -457,7 +459,7 @@ __fork (void)
       state.SP = __hurd_sigthread_stack_base;
 #else
       state.SP = __hurd_sigthread_stack_end;
-#endif      
+#endif
       MACHINE_THREAD_STATE_SET_PC (&state,
                                   (unsigned long int) _hurd_msgport_receive);
       if (err = __thread_set_state (sigthread, MACHINE_THREAD_STATE_FLAVOR,