mremap(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x2000, 0x0, &(0x7f0000ffc000/0x2000)=nil)
mbind(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x3, &(0x7f0000000080)=0x101, 0x3f, 0x0)