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"RPC to self with rendez-vous leading to duplicate port destroy"
http://lists.gnu.org/archive/html/bug-hurd/2011-03/msg00045.html
diff --git a/libfshelp/fetch-root.c b/libfshelp/fetch-root.c
index 54d3c0c..6585052 100644
--- a/libfshelp/fetch-root.c
+++ b/libfshelp/fetch-root.c
@@ -79,7 +79,9 @@ fshelp_fetch_root (struct transbox *box, void *cookie,
if (err)
ret = MACH_PORT_NULL;
- mach_port_destroy (mach_task_self (), rend);
+ /* crdir could be ourselves, and thus diskfs_S_io_reauthenticate
+ * would get the same name, so don't _destroy_ it !! */
+ mach_port_mod_refs (mach_task_self (), rend, MACH_PORT_RIGHT_RECEIVE, -1);
return ret;
}
diff --git a/libshouldbeinlibc/exec-reauth.c b/libshouldbeinlibc/exec-reauth.c
index dd267ef..12b34fc 100644
--- a/libshouldbeinlibc/exec-reauth.c
+++ b/libshouldbeinlibc/exec-reauth.c
@@ -59,7 +59,7 @@ exec_reauth (auth_t auth, int secure, int must_reauth,
if (!err)
err = auth_user_authenticate (auth, ref, MACH_MSG_TYPE_MAKE_SEND,
&newport);
- mach_port_destroy (mach_task_self (), ref);
+ mach_port_mod_refs (mach_task_self (), ref, MACH_PORT_RIGHT_RECEIVE, -1);
if (err)
{
if (must_reauth)
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