[Mono-bugs] [Bug 683409] SMP problems on ARM

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https://bugzilla.novell.com/show_bug.cgi?id=683409

https://bugzilla.novell.com/show_bug.cgi?id=683409#c4


--- Comment #4 from Zoltan Varga <vargaz at gmail.com> 2011-04-07 19:01:28 UTC ---
The following patch is also getting hit, which means the same object pointer is
allocated to two different threads:

<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

diff --git a/mono/metadata/object.c b/mono/metadata/object.c
index 250e947..2415f1d 100644
--- a/mono/metadata/object.c
+++ b/mono/metadata/object.c
@@ -4833,6 +4833,9 @@ mono_string_new_utf16 (MonoDomain *domain, const guint16
*text, gi
        return s;
 }

+static void *strings [100000];
+int nstrings = 0;
+
 /**
  * mono_string_new_size:
  * @text: a pointer to an utf16 string
@@ -4857,6 +4860,19 @@ mono_string_new_size (MonoDomain *domain, gint32 len)
 #ifndef HAVE_SGEN_GC
        s = mono_object_allocate_ptrfree (size, vtable);

+       {
+               int n = InterlockedIncrement (&nstrings);
+
+               if (n < 10000) {
+                       if (strings [n - 1] == s) {
+                               printf ("BOO!\n");
+                               *(int*)0 = 0;
+                       }
+
+                       strings [n] = s;
+               }
+       }
+
        s->length = len;
 #else
        s = mono_gc_alloc_string (vtable, size, len);
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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