diff --git a/sys/denali/lib/denali/denali.yunq.server.cpp b/sys/denali/lib/denali/denali.yunq.server.cpp
index 4c9370b..8d85e29 100644
--- a/sys/denali/lib/denali/denali.yunq.server.cpp
+++ b/sys/denali/lib/denali/denali.yunq.server.cpp
@@ -50,6 +50,7 @@ void DenaliServerBase::ServerThread() {
   while (true) {
     uint64_t recv_cap_size = 0x10;
     uint64_t recv_buf_size = 0x1000;
+    recv_cap.Reset();
     glcr::ErrorCode recv_err = ZEndpointRecv(endpoint_, &recv_buf_size, recv_buffer.RawPtr(), &recv_cap_size, recv_cap.RawPtr(), &reply_port_cap);
     if (recv_err != glcr::OK) {
       dbgln("Error in receive: %x", recv_err);
@@ -59,6 +60,7 @@ void DenaliServerBase::ServerThread() {
     uint64_t resp_length = 0;
     
     glcr::ErrorCode reply_err = glcr::OK;
+    resp_cap.Reset();
     glcr::ErrorCode err = HandleRequest(recv_buffer, recv_cap, resp_buffer, resp_length, resp_cap);
     if (err != glcr::OK) {
       WriteError(resp_buffer, err);
diff --git a/sys/yellowstone/lib/yellowstone/yellowstone.yunq.server.cpp b/sys/yellowstone/lib/yellowstone/yellowstone.yunq.server.cpp
index bbe89f2..708c15b 100644
--- a/sys/yellowstone/lib/yellowstone/yellowstone.yunq.server.cpp
+++ b/sys/yellowstone/lib/yellowstone/yellowstone.yunq.server.cpp
@@ -50,6 +50,7 @@ void YellowstoneServerBase::ServerThread() {
   while (true) {
     uint64_t recv_cap_size = 0x10;
     uint64_t recv_buf_size = 0x1000;
+    recv_cap.Reset();
     glcr::ErrorCode recv_err = ZEndpointRecv(endpoint_, &recv_buf_size, recv_buffer.RawPtr(), &recv_cap_size, recv_cap.RawPtr(), &reply_port_cap);
     if (recv_err != glcr::OK) {
       dbgln("Error in receive: %x", recv_err);
@@ -59,6 +60,7 @@ void YellowstoneServerBase::ServerThread() {
     uint64_t resp_length = 0;
     
     glcr::ErrorCode reply_err = glcr::OK;
+    resp_cap.Reset();
     glcr::ErrorCode err = HandleRequest(recv_buffer, recv_cap, resp_buffer, resp_length, resp_cap);
     if (err != glcr::OK) {
       WriteError(resp_buffer, err);
diff --git a/sys/yellowstone/yellowstone_server.cpp b/sys/yellowstone/yellowstone_server.cpp
index 28e115e..0fd18f1 100644
--- a/sys/yellowstone/yellowstone_server.cpp
+++ b/sys/yellowstone/yellowstone_server.cpp
@@ -48,6 +48,7 @@ glcr::ErrorCode YellowstoneServer::HandleGetAhciInfo(const Empty&,
                                                      AhciInfo& info) {
   info.set_ahci_region(pci_reader_.GetAhciVmmo());
   info.set_region_length(kPcieConfigurationSize);
+  dbgln("Resp ahci");
   return glcr::OK;
 }
 
@@ -58,6 +59,7 @@ glcr::ErrorCode YellowstoneServer::HandleGetDenali(const Empty&,
   info.set_denali_endpoint(new_denali);
   info.set_device_id(device_id_);
   info.set_lba_offset(lba_offset_);
+  dbgln("Resp denali");
   return glcr::OK;
 }
 
diff --git a/yunq/example.yunq.server.cpp b/yunq/example.yunq.server.cpp
index aee644e..1adb3c6 100644
--- a/yunq/example.yunq.server.cpp
+++ b/yunq/example.yunq.server.cpp
@@ -50,6 +50,7 @@ void VFSServerBase::ServerThread() {
   while (true) {
     uint64_t recv_cap_size = 0x10;
     uint64_t recv_buf_size = 0x1000;
+    recv_cap.Reset();
     glcr::ErrorCode recv_err = ZEndpointRecv(endpoint_, &recv_buf_size, recv_buffer.RawPtr(), &recv_cap_size, recv_cap.RawPtr(), &reply_port_cap);
     if (recv_err != glcr::OK) {
       dbgln("Error in receive: %x", recv_err);
@@ -59,6 +60,7 @@ void VFSServerBase::ServerThread() {
     uint64_t resp_length = 0;
     
     glcr::ErrorCode reply_err = glcr::OK;
+    resp_cap.Reset();
     glcr::ErrorCode err = HandleRequest(recv_buffer, recv_cap, resp_buffer, resp_length, resp_cap);
     if (err != glcr::OK) {
       WriteError(resp_buffer, err);
diff --git a/yunq/server.cpp.jinja b/yunq/server.cpp.jinja
index 61abfd7..c299c04 100644
--- a/yunq/server.cpp.jinja
+++ b/yunq/server.cpp.jinja
@@ -50,6 +50,7 @@ void {{interface.name}}ServerBase::ServerThread() {
   while (true) {
     uint64_t recv_cap_size = 0x10;
     uint64_t recv_buf_size = 0x1000;
+    recv_cap.Reset();
     glcr::ErrorCode recv_err = ZEndpointRecv(endpoint_, &recv_buf_size, recv_buffer.RawPtr(), &recv_cap_size, recv_cap.RawPtr(), &reply_port_cap);
     if (recv_err != glcr::OK) {
       dbgln("Error in receive: %x", recv_err);
@@ -59,6 +60,7 @@ void {{interface.name}}ServerBase::ServerThread() {
     uint64_t resp_length = 0;
     
     glcr::ErrorCode reply_err = glcr::OK;
+    resp_cap.Reset();
     glcr::ErrorCode err = HandleRequest(recv_buffer, recv_cap, resp_buffer, resp_length, resp_cap);
     if (err != glcr::OK) {
       WriteError(resp_buffer, err);