Hi,
Perhaps this is useful for the FAQ as it was very difficult for me to
discover...
To increase shared mem and semaphores on BSDI
(courtesy of Sin'ichiro Miyatani on bsdi-users list)
In /usr/src/sys/sys/sem.h,
#ifndef SEMMNI
#define SEMMNI 10 /* # of semaphore identifiers */
#endif
#ifndef SEMMNS
#define SEMMNS 60 /* # of semaphores in system */
#endif
So 10 and 60 are default values. To increase # of semaphore, add next
line into kernel configuration file and recompile your kernel.
options "SEMMNI=XX"
options "SEMMNS=YY"
XX and YY are number you need.
And in /usr/src/sys/sys/shm.h:
#define SHMMAXPGS 1024 /* max hardware pages for shared memory */
It seems this value is hard coded and there is no kernel configuration
option.
John Henderson
