r0 = mq_open(&(0x7f0000005c00)='-@\x00', 0x0, 0x0, 0x0)
r1 = mq_open(&(0x7f0000000000)='-@\x00', 0x0, 0x0, 0x0)
mq_notify(r1, &(0x7f0000000080)={0x0, 0x0, 0x0, @tid=0xffffffffffffffff})
preadv(r0, &(0x7f0000000340)=[{&(0x7f0000000400)=""/143, 0x8f}], 0x1, 0x0, 0x0)