IssueTracker

In https://android.googlesource.com/platform/bionic/+/master/libc/bionic/posix_timers.cpp :

int timer_create(clockid_t clock_id, sigevent* evp, timer_t* timer_id) {
...
  char name[32];
  snprintf(name, sizeof(name), "POSIX interval timer %d", to_kernel_timer_id(timer));
  pthread_setname_np(timer->callback_thread, name);

The problem is that pthread_setname_np() returns ERANGE if the name is longer than 16 chars (including the NULL terminator) and the string that is constructed here is always longer than that. So these threads never have a useful thread name.