Fix segfault while profiling multitasking

JuliaLang · Nov 6, 2021 · 564ddfe · 564ddfe
1 parent 2ece1cd
commit 564ddfe
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/signals-unix.c b/src/signals-unix.c
@@ -452,6 +452,8 @@ void usr2_handler(int sig, siginfo_t *info, void *ctx)
  if (ct == NULL)
  return;
  jl_ptls_t ptls = ct->ptls;
+ if (ptls == NULL)
+ return;
  int errno_save = errno;
  sig_atomic_t request = jl_atomic_exchange(&ptls->signal_request, 0);
 #if !defined(JL_DISABLE_LIBUNWIND)