r0 = openat$procfs(0xffffffffffffff9c, &(0x7f00000000c0)='/proc/timer_list\x00', 0x0, 0x0)
r1 = dup(r0)
preadv(r1, &(0x7f0000000200)=[{&(0x7f0000000040)=""/33, 0x21}], 0x1, 0x4, 0x0)