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-rw-r--r--src/pkg/runtime/malloc.goc15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/pkg/runtime/malloc.goc b/src/pkg/runtime/malloc.goc
index 44b68a728d..2dff981fb4 100644
--- a/src/pkg/runtime/malloc.goc
+++ b/src/pkg/runtime/malloc.goc
@@ -72,6 +72,14 @@ runtime·mallocgc(uintptr size, uint32 flag, int32 dogc, int32 zeroed)
// setup for mark sweep
runtime·markspan(v, 0, 0, true);
}
+
+ if (sizeof(void*) == 4 && c->local_total_alloc >= (1<<30)) {
+ // purge cache stats to prevent overflow
+ runtime·lock(&runtime·mheap);
+ runtime·purgecachedstats(m);
+ runtime·unlock(&runtime·mheap);
+ }
+
if(!(flag & FlagNoGC))
runtime·markallocated(v, size, (flag&FlagNoPointers) != 0);
@@ -170,6 +178,13 @@ runtime·mlookup(void *v, byte **base, uintptr *size, MSpan **sp)
MSpan *s;
m->mcache->local_nlookup++;
+ if (sizeof(void*) == 4 && m->mcache->local_nlookup >= (1<<30)) {
+ // purge cache stats to prevent overflow
+ runtime·lock(&runtime·mheap);
+ runtime·purgecachedstats(m);
+ runtime·unlock(&runtime·mheap);
+ }
+
s = runtime·MHeap_LookupMaybe(&runtime·mheap, v);
if(sp)
*sp = s;