After playing with the nvidia kernel driver from http://nvidia.netexplorer.org/ I 
noticed the following in the output of sysctl -a 

(cutted a little bit because it was nearly 50 k) 
----- SNIP ----
kern.devstat.generation: 1
kern.devstat.version: 4
kern.disks: ad0
kern.log_wakeups_per_second: 5
kern.msgbuf: 0
osMemCopyToUser 4 0x828de54
osMemCopyToUser 4 0x828de58
osMemCopyToUser 4 0x828de5c
----- SNIP ----
NV0: close
osMemSet
osMemSet
NV: nv_release_resources
kmem_free: ce634000
<6>pid 16140 (more), uid 0: exited on signal 11 (core dumped)
<118>Oct 14 14:02:34 shtaiga /boot/kernel/kernel: pid 16140 (more), uid 0: exite
d on signal 11 (core dumped)
Control!
nv_ctl_ioctl: addy 0828eab0 cmd c0044602
NV_IOCTL_CARD_INFO
nv_ctl_ioctl: addy bfbffa3c cmd c0044622
----- SNIP ----
osMemSet
osMemSet
NV: nv_release_resources
kmem_free: ce634000
<6>pid 18172 (tput), uid 0: exited on signal 11 (core dumped)
<118>Oct 14 19:27:01 shtaiga /boot/kernel/kernel: pid 18172 (tput), uid 0: exite
d on signal 11 (core dumped)
link_elf: symbol gd_curproc undefined kern.msgbuf_clear: 0
kern.nselcoll: 0
kern.drainwait: 300
kern.tty_nin: 344345
---- and so on 

as you may suggest from the /boot/kernel/kernel lines this reproduces exactly
the console (and /var/log/messages). After rebooting I explicitly tried to achieve the 
same result but was unlucky.
the cause MIGHT be that I accidently ran a small program with the following typo in it 
while playing with this stuff

test = sysctl(fd, VNIOCGSET, allocated); 
instead of 
test = ioctl(fd, VNIOCGSET, allocated);



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