ora 27104 system defined limits for shared memory was misconfigured linux

[root@oracledb ~]# cat /etc/sysctl.conf | grep kernel | grep shm | grep -v "#"

Your kernel parameters need modifying.

Edit /etc/sysctl.conf and ensure the following lines are present:

kernel.shmall = 18350080
kernel.shmmax = 75161927680
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128

Then reboot the machine.