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-rw-r--r--linuxthreads/pthread.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c
index f165ab1093..8b1b14fff9 100644
--- a/linuxthreads/pthread.c
+++ b/linuxthreads/pthread.c
@@ -529,6 +529,10 @@ static void pthread_initialize(void)
   sigemptyset(&mask);
   sigaddset(&mask, __pthread_sig_restart);
   sigprocmask(SIG_BLOCK, &mask, NULL);
+  /* And unblock __pthread_sig_cancel if it has been blocked. */
+  sigdelset(&mask, __pthread_sig_restart);
+  sigaddset(&mask, __pthread_sig_cancel);
+  sigprocmask(SIG_UNBLOCK, &mask, NULL);
   /* Register an exit function to kill all other threads. */
   /* Do it early so that user-registered atexit functions are called
      before pthread_*exit_process. */