diff --git a/scripts/ci_checks/linux-arm/run-tests-in-qemu.sh b/scripts/ci_checks/linux-arm/run-tests-in-qemu.sh
index c9d5c21b4..54c2a3c62 100755
--- a/scripts/ci_checks/linux-arm/run-tests-in-qemu.sh
+++ b/scripts/ci_checks/linux-arm/run-tests-in-qemu.sh
@@ -20,6 +20,6 @@ find bin/"$toolchain" -name 'roc-test-*' | \
     do
         LD_LIBRARY_PATH="/opt/sysroot/lib:$(echo \
           "$PWD/build/3rdparty/$toolchain/$compiler"/*/rpath | tr ' ' ':')" \
-            python3 scripts/scons_helpers/timeout-run.py 300 \
+            python3 scripts/scons_helpers/timeout-run.py 900 \
               "$qemu_cmd" -L "/opt/sysroot" -cpu "$cpu" "$tst"
     done
diff --git a/scripts/ci_checks/linux-checks/run-tests-in-valgrind.sh b/scripts/ci_checks/linux-checks/run-tests-in-valgrind.sh
index 295d07f57..4a5f39a84 100755
--- a/scripts/ci_checks/linux-checks/run-tests-in-valgrind.sh
+++ b/scripts/ci_checks/linux-checks/run-tests-in-valgrind.sh
@@ -2,11 +2,14 @@
 
 set -eux -o pipefail
 
+export RUNNING_IN_VALGRIND=1
+
 find bin/x86_64-pc-linux-gnu -name 'roc-test-*' |\
     while read tst
     do
-        python3 scripts/scons_helpers/timeout-run.py 3000 \
+        python3 scripts/scons_helpers/timeout-run.py 900 \
             valgrind \
+                --suppressions=src/valgrind_suppressions.supp \
                 --max-stackframe=10475520 \
                 --error-exitcode=1 --exit-on-first-error=yes \
                 ${tst}
diff --git a/src/tests/public_api/test_loopback_sender_2_receiver.cpp b/src/tests/public_api/test_loopback_sender_2_receiver.cpp
index 277ff7ae3..a83415afc 100644
--- a/src/tests/public_api/test_loopback_sender_2_receiver.cpp
+++ b/src/tests/public_api/test_loopback_sender_2_receiver.cpp
@@ -117,6 +117,10 @@ TEST_GROUP(loopback_sender_2_receiver) {
     bool is_ldpc_supported() {
         return fec::CodecMap::instance().has_scheme(packet::FEC_LDPC_Staircase);
     }
+
+    bool running_in_valgrind() {
+        return ExtTestRunner::getCurrent()->runningInValgrind();
+    }
 };
 
 TEST(loopback_sender_2_receiver, bare_rtp) {
@@ -630,7 +634,7 @@ TEST(loopback_sender_2_receiver, multitrack_separate_contexts) {
 
 // Smoke test for various counters, durations, etc.
 TEST(loopback_sender_2_receiver, metrics_measurements) {
-    if (!is_rs8m_supported()) {
+    if (!is_rs8m_supported() || running_in_valgrind()) {
         TEST_SKIP();
     }
 
diff --git a/src/tests/test_harness.cpp b/src/tests/test_harness.cpp
index abb0eb478..9f09f0e69 100644
--- a/src/tests/test_harness.cpp
+++ b/src/tests/test_harness.cpp
@@ -8,6 +8,8 @@
 
 #include "test_harness.h"
 
+#include "roc_core/stddefs.h"
+
 ExtTestOutput::ExtTestOutput()
     : ConsoleTestOutput() {
 }
@@ -36,8 +38,14 @@ ExtTestRunner* ExtTestRunner::getCurrent() {
 
 ExtTestRunner::ExtTestRunner(int argc, const char* const* argv)
     : CommandLineTestRunner(argc, argv, TestRegistry::getCurrentRegistry())
-    , test_skipped_(false) {
+    , test_skipped_(false)
+    , valgrind_detected_(false) {
     current_runner_ = this;
+
+    const char* valgrind = getenv("RUNNING_IN_VALGRIND");
+    if (valgrind && valgrind[0] && strcmp(valgrind, "0") != 0) {
+        valgrind_detected_ = true;
+    }
 }
 
 void ExtTestRunner::markTestStarted() {
@@ -56,6 +64,10 @@ bool ExtTestRunner::isTestSkipped() const {
     return test_skipped_;
 }
 
+bool ExtTestRunner::runningInValgrind() const {
+    return valgrind_detected_;
+}
+
 TestOutput* ExtTestRunner::createConsoleOutput() {
     return new ExtTestOutput;
 }
diff --git a/src/tests/test_harness.h b/src/tests/test_harness.h
index a66c459f5..367c2e182 100644
--- a/src/tests/test_harness.h
+++ b/src/tests/test_harness.h
@@ -39,6 +39,7 @@ class ExtTestRunner : public CommandLineTestRunner {
     void markTestEnded();
 
     bool isTestSkipped() const;
+    bool runningInValgrind() const;
 
 protected:
     virtual TestOutput* createConsoleOutput();
@@ -46,6 +47,7 @@ class ExtTestRunner : public CommandLineTestRunner {
 private:
     static ExtTestRunner* current_runner_;
     bool test_skipped_;
+    bool valgrind_detected_;
 };
 
 #endif // ROC_TEST_HARNESS_H_
diff --git a/src/valgrind_suppressions.supp b/src/valgrind_suppressions.supp
new file mode 100644
index 000000000..1a81ef4ed
--- /dev/null
+++ b/src/valgrind_suppressions.supp
@@ -0,0 +1,19 @@
+{
+   cpputest_NormalTestTerminator_exitCurrentTest
+   Memcheck:Param
+   write(buf)
+   ...
+   fun:_ZNK20NormalTestTerminator15exitCurrentTestEv
+}
+{
+   cpputest_PlatformSpecificSetJmpImplementation
+   Memcheck:Addr8
+   ...
+   fun:PlatformSpecificSetJmpImplementation
+}
+{
+   cpputest_CommandLineTestRunner_dtor
+   Memcheck:Free
+   fun:_ZdlPvm
+   fun:_ZN21CommandLineTestRunnerD1Ev
+}