r0 = openat$sr(0xffffffffffffff9c, &(0x7f0000000440), 0x4840, 0x0)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ffd000/0x3000)=nil, 0x3000, 0x2000004, 0x12, r0, 0x0)
sigaltstack(&(0x7f0000ffe000/0x1000)=nil, 0x0)