shmat(0x0, &(0x7f0000ffb000/0x4000)=nil, 0x4000)
shmat(0x0, &(0x7f0000fff000/0x1000)=nil, 0x4000)
shmat(0x0, &(0x7f0000ffd000/0x1000)=nil, 0x4000)