From 482472c332a2a8a9df203bb6fb8f3f6ed87a9cf4 Mon Sep 17 00:00:00 2001
From: "Frank Ch. Eigler" <fche@elastic.org>
Date: Thu, 5 Feb 2009 13:45:26 -0500
Subject: PR9740/9816? - workaround for kernel valloc bug

---
 runtime/transport/transport.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'runtime/transport/transport.c')

diff --git a/runtime/transport/transport.c b/runtime/transport/transport.c
index a572ef9c..97fbf860 100644
--- a/runtime/transport/transport.c
+++ b/runtime/transport/transport.c
@@ -64,6 +64,15 @@ static struct workqueue_struct *_stp_wq;
 static void _stp_handle_start(struct _stp_msg_start *st)
 {
 	dbug_trans(1, "stp_handle_start\n");
+
+#ifdef STAPCONF_VM_AREA
+        { /* PR9740: workaround for kernel valloc bug. */
+                void *dummy;
+                dummy = alloc_vm_area (PAGE_SIZE);
+                free_vm_area (dummy);
+        }
+#endif
+
 	_stp_target = st->target;
 	st->res = probe_start();
 	if (st->res >= 0)
-- 
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