diff --git a/interfaces/innerkits/dump_catcher/dfx_dump_catcher.cpp b/interfaces/innerkits/dump_catcher/dfx_dump_catcher.cpp
index 84aad6aaa3e155d012ae91902796904f25b80ada..cca253162e102e40175adb726c8fa24b2110e6c1 100644
--- a/interfaces/innerkits/dump_catcher/dfx_dump_catcher.cpp
+++ b/interfaces/innerkits/dump_catcher/dfx_dump_catcher.cpp
@@ -282,6 +282,11 @@ bool DfxDumpCatcher::DoDumpCatchRemote(int pid, int tid, std::string& msg, bool
         default:
             break;
     }
+
+    if (!ret && isJson && msg != "") {
+        DFXLOG_INFO("%s :: %s json msg not empty!", DFXDUMPCATCHER_TAG.c_str(), __func__);
+        ret = true;
+    }
     DFXLOG_INFO("%s :: %s :: pid(%d) ret: %d", DFXDUMPCATCHER_TAG.c_str(), __func__, pid, ret);
     return ret;
 }
@@ -420,7 +425,6 @@ bool DfxDumpCatcher::DoReadRes(int fd, bool &ret, std::string& msg)
         DFXLOG_WARN("%s :: %s :: read error", DFXDUMPCATCHER_TAG.c_str(), __func__);
         return false;
     }
-
     if (res == DumpErrorCode::DUMP_ESUCCESS) {
         ret = true;
     }
diff --git a/test/moduletest/faultloggerd_module_test.cpp b/test/moduletest/faultloggerd_module_test.cpp
index c8b1cd0eb9fa048397d0b1f10cb8461eac806353..b2d9443ccf3c2a97fe389fae3b4efc4392a94f73 100644
--- a/test/moduletest/faultloggerd_module_test.cpp
+++ b/test/moduletest/faultloggerd_module_test.cpp
@@ -150,6 +150,7 @@ HWTEST_F(FaultloggerdModuleTest, FaultloggerdClientFdRquestTest004, TestSize.Lev
  */
 HWTEST_F(FaultloggerdModuleTest, FaultloggerdClientPipeFdRquestTest001, TestSize.Level0)
 {
+    sleep(8); // Wait for the last request to complete.
     RequestSdkDump(getpid(), getpid());
     int32_t pipeFd = RequestPipeFd(getpid(), FaultLoggerPipeType::PIPE_FD_READ_BUF);
     ASSERT_NE(pipeFd, -1);
diff --git a/test/unittest/unwind/unwinder_test.cpp b/test/unittest/unwind/unwinder_test.cpp
index 8e93c2ae38fb7318fd4b385a0b8f6a0373d517f0..5c68570bad03d899a02e97684735423a493a19bb 100644
--- a/test/unittest/unwind/unwinder_test.cpp
+++ b/test/unittest/unwind/unwinder_test.cpp
@@ -909,6 +909,31 @@ HWTEST_F(UnwinderTest, GetSymbolByPcTest001, TestSize.Level2)
     ASSERT_FALSE(unwinder->GetSymbolByPc(pc0, maps, funcName, funcOffset)); // Get elf is null
     GTEST_LOG_(INFO) << "GetSymbolByPcTest001: end.";
 }
+
+/**
+ * @tc.name: AccessMemTest001
+ * @tc.desc: test unwinder AccessMem interface
+ * @tc.type: FUNC
+ */
+HWTEST_F(UnwinderTest, AccessMemTest001, TestSize.Level2)
+{
+    GTEST_LOG_(INFO) << "AccessMemTest001: start.";
+    auto unwinder = std::make_shared<Unwinder>();
+    auto acc = std::make_shared<DfxAccessorsLocal>();
+    auto memory = std::make_shared<DfxMemory>(acc);
+    uintptr_t val;
+    EXPECT_FALSE(memory->ReadReg(0, &val));
+    uintptr_t regs[] = {0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa};
+    UnwindContext ctx;
+    ctx.regs = DfxRegs::CreateFromRegs(UnwindMode::DWARF_UNWIND, regs, sizeof(regs) / sizeof(regs[0]));
+    memory->SetCtx(&ctx);
+    EXPECT_FALSE(memory->ReadReg(-1, &val));
+
+    uint8_t values[] = {0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8};
+    uintptr_t addr = (uintptr_t)(&values[0]);
+    EXPECT_FALSE(unwinder->AccessMem(&memory, addr, nullptr));
+    GTEST_LOG_(INFO) << "AccessMemTest001: end.";
+}
 } // namespace HiviewDFX
 } // namepsace OHOS