The test crashes when run under the openSUSE build system. It sets MALLOC_PERTURB_=69 in the environment, so the allocated memory is initialized to 0xba.
Later in io_uring_get_sqe() -> _io_uring_get_sqe():
1424 if (next - head <= sq->ring_entries) {
(gdb) p *sq
$2 = {khead = 0x55555555d000, ktail = 0x55555555d004,
kring_mask = 0x55555555d010, kring_entries = 0x55555555d018,
kflags = 0x55555555d024, kdropped = 0x55555555d020, array = 0x0,
sqes = 0x55555555c000, sqe_head = 0, sqe_tail = 0, ring_sz = 0,
ring_ptr = 0x55555555d000, ring_mask = 0, ring_entries = 1, pad = {0, 0}}
(gdb) p sq->ring_entries
$3 = 1
(gdb) p next
$4 = 1
(gdb) p/x head
$6 = 0xbabababa
And that causes a crash, of course.
Fix that by zeroing the memory after posix_memalign().
The test crashes when run under the openSUSE build system. It sets
MALLOC_PERTURB_=69in the environment, so the allocated memory is initialized to0xba.Later in
io_uring_get_sqe()->_io_uring_get_sqe():And that causes a crash, of course.
Fix that by zeroing the memory after
posix_memalign().