stderr.log fills on vserver

[nemster]

stderr.log gets filled with this useless error on my vserver.
proc is there but because its vserver it does not show up in mount.

Error: /proc must be mounted
  To mount /proc at boot you need an /etc/fstab line like:
      /proc   /proc   proc    defaults
  In the meantime, run "mount /proc /proc -t proc"

[mistwang]

You need to find out which command cause this? Internally, LSWS run

ps
vmstat
mpstat

commands to pull system status information. make the offending command unavailable should help.