r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0)
pwrite64(r0, &(0x7f0000000140)=' ', 0x1, 0x99ad)
mmap$IORING_OFF_SQ_RING(&(0x7f0000ff9000/0x1000)=nil, 0x1000, 0x3, 0x13, r0, 0x0)
sigaltstack(&(0x7f0000ff9000/0x3000)=nil, 0x0)