[vserver] logs filling with this

every host log is filling with entries such as this one. is this an error or a debug msg
ro should i ignore them?

Sep 11 06:51:03 thor kernel: vxW: [»vmstat«,23763:#3998|3998|3998] did lookup hidden
proc:ffff880114950ed0[#0,4026531972] »/proc/vmstat«.

i remember some time ago i saw similar messages then they stopped and are now back.

every host is running:

util-vserver-0.30.216_pre2883

kernel 2.6.33-vs2.3.0.36.30.4-gentoo

we have also moved architectures from opteron to intel core2 and of course did all
recompiles necessary to match.

-- 
Chuck