I set that modules mbxaccess and omaplcd load at boot,
move starting scripts of various daemon in /etc/init.d/
But doesn't help.

It also does not matter when mbxaccess and omaplcd are loaded or when mbxdaemon is started, the allocation is done when you run glinfo (or I think so)

If I load modules at boot time:
[ 97.632812] OMAPLCD: Copy from user failed.OMAPLCD: Copy from user failed.OMAPLCD: Copy from user failed.OMAPLCD: Copy from user failed.
mbxdaemon didn't start ...

Ok.
Can you tell me how modify system to start glinfo?

What daemons can I prevent start?

ls /etc/init.d/
af-base-apps glibc.sh _mediaplayer-daemon product-code
af-services _gpsdriver _metalayer-crawler0 rc
af-startup hal minireboot rc.pvr
alarmd _hdparm minishutdown rcS
_apmonitord _hildon-application-manager module-init-tools ssh
_binkd _hildon-desktop _mpd supllistenerd
_bluez-utils hulda _multimediad _sysklogd
brightness-permission hwclockfirst.sh _nethack-common _tablet-browser-daemon
btcond hwclock.sh networking ttyusb0
dbus _icd2 _obexsrv usbnet
_dbus-scripts _ke-recv osso-applet-display _wide-dhcpv6-client
dnsmasq klogd _osso-ipv6 _wlancond
dsp-init libgpsbt osso-systemui x11-common
esd maemo-launcher osso-systemui-early x-server
fb-progress.sh mce procps zzinitdone

I don't know.
I copied whole Graphics_SDK/OMAP24xx_MBX_SDK_N8xx/bin/binary_omap2420_linux_release folder to N810, copied stuff to /usr/lib
flashed kernel, booted with usb cable attached to PC, opened osso-xterm, created device nodes, inserted modules, run mbxdeamon and glinfo worked, then I have tried with my own kernel and it worked too

When it didn't work I've seen the exact allocation failure you posted but I'm not sure I've seen the "Copy from user' one

I did all you wrote
Result is the same

[ 133.687500] No flipbuffers
[ 133.695312] request OMAPLCD IRQ failedrequest OMAPLCD IRQ failed<6>PVR_KERNLError): Failed to find offset struct (KVAddress=c8abd000)
[ 133.851562] [567, /home/carsten/powervr/embedded/services/env/linux/mmap.c]
[ 133.851562] PVR_KERNLError): Failed to find offset struct (KVAddress=c891a000)
[ 133.851562] [567, /home/carsten/powervr/embedded/services/env/linux/mmap.c]
[ 133.851562] PVR_KERNLError): Failed to find offset struct (KVAddress=c8914000)
[ 133.851562] [567, /home/carsten/powervr/embedded/services/env/linux/mmap.c]
[ 133.859375] PVR_KERNLError): Failed to find offset struct (KVAddress=c8912000)
[ 133.859375] [567, /home/carsten/powervr/embedded/services/env/linux/mmap.c]

Then I suggest to wait and spend our time with something more productive.

I hope that hacking omaplcd to steal flipbuffers from already allocated omapfb plane 2 instead of allocating it dynamically is possible. Even if it is a quick and dirty hack it would allow us to avoid this issue and also use stock kernel. Can take few days.

The allocation didn't fail here. What happens if you run eglxtest?

I start glinfo as the last script in /etc/rc2.d
It works