prctl$PR_SET_SYSCALL_USER_DISPATCH_ON(0x3b, 0x1, 0x6, 0x8000000, &(0x7f0000000000))
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x42, 0x0)
syncfs(r0)