From a2d3053354432f3e3b5a787c1527d4b414e9acb0 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Fri, 10 Apr 2015 03:47:42 -0400 Subject: [PATCH] apply vmlock wait to __unmapself in pthread_exit --- src/thread/pthread_create.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c index 08c5f4f8..33808ce5 100644 --- a/src/thread/pthread_create.c +++ b/src/thread/pthread_create.c @@ -108,6 +108,10 @@ _Noreturn void __pthread_exit(void *result) if (self->robust_list.off) __syscall(SYS_set_robust_list, 0, 3*sizeof(long)); + /* Since __unmapself bypasses the normal munmap code path, + * explicitly wait for vmlock holders first. */ + __vm_wait(); + /* The following call unmaps the thread's stack mapping * and then exits without touching the stack. */ __unmapself(self->map_base, self->map_size); -- 2.25.1