Core - Last Errors Btn

common/params_keys.h

@@ -120,4 +120,5 @@ inline static std::unordered_map<std::string, uint32_t> keys = {
     {"UpdaterTargetBranch", CLEAR_ON_MANAGER_START},
     {"UpdaterLastFetchTime", PERSISTENT},
     {"Version", PERSISTENT},
+    {"dp_device_last_log", CLEAR_ON_ONROAD_TRANSITION},
 };

selfdrive/ui/qt/offroad/developer_panel.cc

@@ -45,6 +45,21 @@ DeveloperPanel::DeveloperPanel(SettingsWindow *parent) : ListWidget(parent) {
 
   // Toggles should be not available to change in onroad state
   QObject::connect(uiState(), &UIState::offroadTransition, this, &DeveloperPanel::updateToggles);
+
+  // error logs
+  QPushButton* error_log_btn = new QPushButton(QObject::tr("Show Last Errors"));
+  error_log_btn->setObjectName("error_log_btn");
+
+  error_log_btn->setStyleSheet(R"(
+    #error_log_btn { height: 120px; border-radius: 15px; background-color: #393939; }
+    #error_log_btn:pressed { background-color: #4a4a4a; }
+  )");
+
+  addItem(error_log_btn);
+
+  QObject::connect(error_log_btn, &QPushButton::clicked, [=]() {
+    ConfirmationDialog::rich(QString::fromStdString(params.get("dp_device_last_log")), parent);
+  });
 }
 
 void DeveloperPanel::updateToggles(bool _offroad) {

system/sentry.py

@@ -26,11 +26,16 @@ def report_tombstone(fn: str, message: str, contents: str) -> None:
     sentry_sdk.capture_message(message=message)
     sentry_sdk.flush()
 
+def save_exception(exc_text):
+  log = "\n".join(exc_text.splitlines()) + "\n"
+  Params().put("dp_device_last_log", log)
 
 def capture_exception(*args, **kwargs) -> None:
   cloudlog.error("crash", exc_info=kwargs.get('exc_info', 1))
 
   try:
+    import traceback
+    save_exception(traceback.format_exc())
     sentry_sdk.capture_exception(*args, **kwargs)
     sentry_sdk.flush()  # https://github.com/getsentry/sentry-python/issues/291
   except Exception: