r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000000), 0x4840, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x0, 0x80013, r0, 0x0)