lib: Add backtrace to "Growing data stack" debug log message

diff --git a/src/lib/data-stack.c b/src/lib/data-stack.c
index 3e1fecaccd4d421d8280d3c1ec8523901af2f60a..477ad91d4a3c26123593762496655ec716fa87c4 100644 (file)
--- a/src/lib/data-stack.c
+++ b/src/lib/data-stack.c
@@ -434,8 +434,10 @@ static void data_stack_send_grow_event(size_t last_alloc_size)
        const char *backtrace, *error;
        if (backtrace_get(&backtrace, &error) == 0)
                event_add_str(event_datastack, "backtrace", backtrace);
-       else
+       else {
+               backtrace = t_strdup_printf("backtrace failed: %s", error);
                event_add_str(event_datastack, "backtrace_error", error);
+       }
 
        string_t *str = t_str_new(128);
        str_printfa(str, "total_used=%zu, total_alloc=%zu, last_alloc_size=%zu",
@@ -446,8 +448,8 @@ static void data_stack_send_grow_event(size_t last_alloc_size)
        str_printfa(str, ", frame_bytes=%llu, frame_alloc_count=%u",
                    frame->alloc_bytes, frame->alloc_count);
 #endif
-       e_debug(event_datastack, "Growing data stack by %zu for '%s' (%s)",
-               current_block->size, frame->marker, str_c(str));
+       e_debug(event_datastack, "Growing data stack by %zu for '%s' (%s): %s",
+               current_block->size, frame->marker, str_c(str), backtrace);
 }
 
 static void *t_malloc_real(size_t size, bool permanent)