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Database startup on Solaris 10 fails with ORA-27102

Error:

SQL> startup
ORA-27102: out of memory
SVR4 Error: 22: Invalid argument

And the alert log shows something similar to the following.

WARNING: EINVAL creating segment of size 0x000000002a000000
fix shm parameters in /etc/system or equivalent

Solution:

For example, a sample /etc/system entry setting SHMMAX = 6GB.

set shmsys:shminfo_shmmax=6442450944 (6*1024*1024*1024)
set semsys:seminfo_semmni=1024
set semsys:seminfo_semmsl=1024
set shmsys:shminfo_shmmni=100

(see note id:  169706.1 for solaris requeriments)

Database started with above settings ok, and missing project settings in this case were the following.
1. # projadd -c "Oracle" 'user.oracle'
2. # projmod -s -K "project.max-shm-memory=(privileged,6GB,deny)" 'user.oracle'

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