r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./file1\x00', 0x802c2, 0x0)
mmap$usbmon(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x10, r0, 0xffffffff80000000)