ioctl$NS_GET_USERNS(0xffffffffffffffff, 0xb701, 0x0)
ioctl$NS_GET_PARENT(0xffffffffffffffff, 0xb702, 0x0)
r0 = openat$sr(0xffffffffffffff9c, &(0x7f00000001c0), 0xe8902, 0x0)
ioctl$SG_IO(r0, 0x127f, &(0x7f00000003c0)={0xe00, 0x0, 0x0, 0x0, @buffer={0x300, 0x0, 0x0}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
mmap(&(0x7f0000ffa000/0x4000)=nil, 0x4000, 0x0, 0x4000813, 0xffffffffffffffff, 0x0)
getpid()
perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x1)