r0 = shmget$private(0x0, 0x4000, 0x0, &(0x7f0000ffc000/0x4000)=nil)
shmctl$SHM_LOCK(r0, 0xb)
shmat(r0, &(0x7f0000ff9000/0x4000)=nil, 0x4000)
mlock2(&(0x7f0000ffa000/0x3000)=nil, 0x3000, 0x0)
munlock(&(0x7f0000ff7000/0x4000)=nil, 0x4000)