blob: b5c7b1ba57c1db7667d165491d2fa1c1e8588e88 (
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diff -urp ../git/linux-2.6.8.1-work/kernel/pid.c linux-2.6.8.1/kernel/pid.c
--- ../git/linux-2.6.8.1-work/kernel/pid.c 2006-06-02 18:02:14.000000000 +0400
+++ linux-2.6.8.1/kernel/pid.c 2006-06-02 18:12:21.000000000 +0400
@@ -470,7 +470,18 @@ int vpid_to_pid(int pid)
static int add_mapping(int pid, int vpid, int veid, struct hlist_head *cache)
{
- if (pid > 0 && vpid > 0 && !__lookup_vpid_mapping(vpid, veid)) {
+ if (unlikely(pid <= 0 || vpid <= 0))
+ return 0;
+
+ /* VE can contain non-virtual (VE_ENTER'ed) processes when
+ * switching to sparse mapping. We should not create mappings
+ * for them. */
+ if (unlikely(!__is_virtual_pid(vpid) && vpid != 1)) {
+ printk("DEBUG (do not worry, but report): non-virtual pid while switching mode %d %d\n", pid, vpid);
+ return 0;
+ }
+
+ if (!__lookup_vpid_mapping(vpid, veid)) {
struct vpid_mapping *m;
if (hlist_empty(cache)) {
m = kmem_cache_alloc(vpid_mapping_cachep, GFP_ATOMIC);
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