diff --git a/pmu/sampler.cpp b/pmu/sampler.cpp
index dc1f1498ee7f33683ebddb469f2095125a656d7a..10bd5bfccd93b4ba7dafa0dc13acb00d0f9b99ff 100644
--- a/pmu/sampler.cpp
+++ b/pmu/sampler.cpp
@@ -123,6 +123,20 @@ void KUNPENG_PMU::PerfSampler::UpdatePidInfo(const pid_t &pid, const int &tid)
     }
 }
 
+void KUNPENG_PMU::PerfSampler::UpdateCommInfo(KUNPENG_PMU::PerfEvent *event)
+{
+    auto findProc = procMap.find(event->comm.tid);
+    if (findProc == procMap.end()) {
+        std::shared_ptr<ProcTopology> procTopo(new ProcTopology{0}, FreeProcTopo);
+        procTopo->tid = event->comm.tid;
+        procTopo->pid = event->comm.pid;
+        procTopo->comm = static_cast<char *>(malloc(strlen(event->comm.comm) + 1));
+        strcpy(procTopo->comm, event->comm.comm);
+        DBG_PRINT("Add to proc map: %d\n", event->comm.tid);
+        procMap[event->comm.tid] = procTopo;
+    }
+}
+
 void KUNPENG_PMU::PerfSampler::RawSampleProcess(
         struct PmuData *current, PerfSampleIps *ips, union KUNPENG_PMU::PerfEvent *event)
 {
@@ -185,6 +199,10 @@ void KUNPENG_PMU::PerfSampler::ReadRingBuffer(vector<PmuData> &data, vector<Perf
                 UpdatePidInfo(event->fork.pid, event->fork.tid);
                 break;
             }
+            case PERF_RECORD_COMM: {
+                UpdateCommInfo(event);
+                break;
+            }
             default:
                 break;
         }
diff --git a/pmu/sampler.h b/pmu/sampler.h
index 5509f61e4d8df623fcbfc96d3be25273fec12e31..c7d2844975f3aecc11f641d9f614e5f01ea021e4 100644
--- a/pmu/sampler.h
+++ b/pmu/sampler.h
@@ -55,6 +55,7 @@ namespace KUNPENG_PMU {
         void ReadRingBuffer(std::vector<PmuData> &data, std::vector<PerfSampleIps> &sampleIps);
         void FillComm(const size_t &start, const size_t &end, std::vector<PmuData> &data);
         void UpdatePidInfo(const pid_t &pid, const int &tid);
+        void UpdateCommInfo(KUNPENG_PMU::PerfEvent *event);
 
         static int pages;
         std::shared_ptr<PerfMmap> sampleMmap = std::make_shared<PerfMmap>();
diff --git a/symbol/symbol_resolve.cpp b/symbol/symbol_resolve.cpp
index eb9042d54e1ebf465d188ab606882663e16db023..e22d0e36572a02bc97df571ee3364714960a03c1 100644
--- a/symbol/symbol_resolve.cpp
+++ b/symbol/symbol_resolve.cpp
@@ -62,6 +62,7 @@ const std::string SLASH = "/";
 const char DASH = '-';
 const char EXE_TYPE = 'x';
 char* UNKNOWN = "UNKNOWN";
+char* KERNEL = "[kernel]";
 
 namespace {
     static inline void SetFalse(bool& flag)
@@ -284,11 +285,11 @@ void SymbolUtils::FreeSymbol(struct Symbol* symbol)
         delete[] symbol->symbolName;
         symbol->symbolName = nullptr;
     }
-    if (symbol->fileName && symbol->fileName != UNKNOWN) {
+    if (symbol->fileName && symbol->fileName != UNKNOWN && symbol->fileName != KERNEL) {
         delete[] symbol->fileName;
         symbol->fileName = nullptr;
     }
-    if (symbol->module && symbol->fileName != UNKNOWN) {
+    if (symbol->module && symbol->module != UNKNOWN && symbol->module != KERNEL) {
         delete[] symbol->module;
         symbol->module = nullptr;
     }
@@ -924,7 +925,10 @@ struct Symbol* SymbolResolve::MapAddr(int pid, unsigned long addr)
     if (addr > KERNEL_START_ADDR) {
         data = this->MapKernelAddr(addr);
         if (data == nullptr) {
-            return nullptr;
+            auto symbol = InitializeSymbol(addr);
+            symbol->module = KERNEL;
+            symbol->fileName = KERNEL;
+            return symbol;
         }
         data->offset = addr - data->addr;
     } else {