--- rspamd-4.2.2.orig/contrib/backward-cpp/backward.hpp	2026-10-18 07:47:25.908256118 +0200
+++ rspamd-4.2.2/contrib/backward-cpp/backward.hpp	2026-10-18 07:47:25.917422068 +0200
@@ -4238,6 +4238,8 @@ public:
     error_addr = reinterpret_cast<void *>(uctx->uc_mcontext->__ss.__rip);
 #elif defined(__APPLE__)
     error_addr = reinterpret_cast<void *>(uctx->uc_mcontext->__ss.__eip);
+#elif defined(__alpha__)
+    error_addr = reinterpret_cast<void *>(uctx->uc_mcontext.sc_pc);
 #else
 #warning ":/ sorry, ain't know no nothing none not of your architecture!"
 #endif