Oracle problem at startup

Hi

Sometimes, we have a problem when oracle has to boot from the crontab. It's necesary to kill the oracle's process, clean memory semafhore before startup. In the alert, there is the next warning:

WARNING: EINVAL creating segment of size 0x00000000c5400000

fix shm parameters in /etc/system or equivalent

We have oracle 9.2.0.5 and Solarios 5.8. The RAM is 8 Gb, the sga_max_size 3.273.628.280 and the parameter shmsys:shminfo_shmmax in the etc/system 1073741824

Any ideas?

Thanks and advance