random errors from "rm"

[Gee M Wong]

I updated to the setup 2.457.2.2 from 2.427 and started getting random errors 
from "rm".

For example:
  address@hidden ~
  $ echo 123 > aaa

  address@hidden ~
  $ ls -l
  total 1
  -rw-r--r--  1 Gee None 5 Feb 24 20:20 aaa

  address@hidden ~
  $ rm aaa
  rm: cannot remove `aaa': No such file or directory

  address@hidden ~
  $ ls -l
  total 0

  address@hidden ~
  $