Ole,
Semaphores are a very cheap system resource in SunOS 4.1.x. You can easily
bump up the max number using adb, without even recompiling the kernel.
_seminfo:
_seminfo+0 semmap 30
_seminfo+4 semmni 256
_seminfo+8 semmns 1024
_seminfo+0xc semmnu 1024
_seminfo+0x10 semmsl 1024
_seminfo+0x14 semopm 100
_seminfo+0x18 semume 256
_seminfo+0x1c semusz 2064
_seminfo+0x20 semvmx 32767
_seminfo+0x24 semaem 16384
To set "semmns" and other parameters without recompiling the kernel,
do
somthing
like;
# /bin/adb -w -k /vmunix /dev/mem <<EOF
_seminfo+8?D
_seminfo+8?W 0x400
EOF
# reboot
The first line prints what the current value is, the second sets it to 1024.
You have to reboot for the changes to take effect.
I've also got an adb program to dump all the ipc parameters. Very handy.
I can send it via private mail. (in return for some .dk culinary token).
Good Luck,
- Andrew -
-------------- next part --------------
#!/bin/sh
#
# Print kernel IPC structures. AGM 4/97
#
/bin/adb -k /vmunix /dev/mem << EOF
version,(utsname-version)?c
msginfo?n"msgmap"8t1Dn"msgmax"8t1Dn"msgmnb"8t1Dn"msgssz"8t1Dn"msgtql"8t1Dn"msgseg"8t1dnn
seminfo?n"semmap"8t1Dn"semmni"8t1Dn"semmns"8t1Dn"semmnu"8t1Dn"semmsl"8t1Dn"semopm"8t1Dn"semume"8t1Dn"semusz"8t1Dn"semvmx"8t1Dn"semaem"8t1Dnn
shminfo?n"shmmax"8t1Dn"shmmin"8t1Dn"shmmni"8t1Dnn
EOF
