+ /* Iterate through all triggered pages and mark their files as
+ * invalidated */
+ for (;;) {
+ bool ours;
+ void *addr;
+
+ r = sigbus_pop(&addr);
+ if (_likely_(r == 0))
+ break;
+ if (r < 0) {
+ log_error_errno(r, "SIGBUS handling failed: %m");
+ abort();
+ }
+
+ ours = false;
+ HASHMAP_FOREACH(f, m->fds, i) {
+ Window *w;
+
+ LIST_FOREACH(by_fd, w, f->windows) {
+ if ((uint8_t*) addr >= (uint8_t*) w->ptr &&
+ (uint8_t*) addr < (uint8_t*) w->ptr + w->size) {
+ found = ours = f->sigbus = true;
+ break;
+ }
+ }
+
+ if (ours)
+ break;
+ }
+
+ /* Didn't find a matching window, give up */
+ if (!ours) {
+ log_error("Unknown SIGBUS page, aborting.");
+ abort();
+ }
+ }
+
+ /* The list of triggered pages is now empty. Now, let's remap
+ * all windows of the triggered file to anonymous maps, so
+ * that no page of the file in question is triggered again, so
+ * that we can be sure not to hit the queue size limit. */
+ if (_likely_(!found))