test_interrupt randomly failing on vlc_poll_i11e

#0  0x00007f6adfedb84c in __pthread_kill_implementation () from /lib64/libc.so.6
#1  0x00007f6adfe8e6a6 in raise () from /lib64/libc.so.6
#2  0x00007f6adfe787d3 in abort () from /lib64/libc.so.6
#3  0x00007f6adfe786fb in __assert_fail_base.cold () from /lib64/libc.so.6
#4  0x00007f6adfe87396 in __assert_fail () from /lib64/libc.so.6
#5  0x0000000000401b5d in test_context_simple (ctx=ctx@entry=0x17688c0) at ../../vlc/src/test/interrupt.c:86
#6  0x0000000000401bca in test_thread_cancel (data=0x17688c0) at ../../vlc/src/test/interrupt.c:144
#7  0x00007f6adfed9a87 in start_thread () from /lib64/libc.so.6
#8  0x00007f6adff5e640 in clone3 () from /lib64/libc.so.6

assert(vlc_poll_i11e(NULL, 0, 1) == 0);

vlc_poll_i11e_inner call to poll(ufd, nfds + 1, timeout) returns -1 and errno is 4