Commit d50f3cb9 authored by Bruce Momjian's avatar Bruce Momjian

Update bsdi faq.

parent b29f68f6
...@@ -21,12 +21,13 @@ to your /etc/login.conf file. ...@@ -21,12 +21,13 @@ to your /etc/login.conf file.
2a) By default, only 4MB of shared memory is supported by BSDI. Keep in 2a) By default, only 4MB of shared memory is supported by BSDI. Keep in
mind that shared memory is not pageable. It is locked in RAM. mind that shared memory is not pageable. It is locked in RAM.
To increase the number of buffers supported by the postmaseter, increase To increase the number of buffers supported by the postmaseter, add the
SHMMAXPGS by 1024 for every additional 4MB of shared memory: following to your kernel config file. A SHMMAXPGS value of 1024
represents 4MB of shared memory. Increase it accordingly:
/sys/sys/shm.h:69:#define SHMMAXPGS 1024 /* max hardware pages... options "SHMMAXPGS=4096"
The default setting of 1024 is for a maximum of 4MB of shared memory. The default is 1024 which allows a maximum of 4MB of shared memory.
For those running 4.1 or later, just recompile the kernel and reboot. For those running 4.1 or later, just recompile the kernel and reboot.
For those running earlier releases, see step 2b. For those running earlier releases, see step 2b.
...@@ -42,7 +43,7 @@ the current kernel. This is computed dynamically at bootup. ...@@ -42,7 +43,7 @@ the current kernel. This is computed dynamically at bootup.
Next, change SYSPTSIZE to a hard-coded value. Use the bpatch value, Next, change SYSPTSIZE to a hard-coded value. Use the bpatch value,
plus add 1 for every additional 4MB of shared memory you desire. plus add 1 for every additional 4MB of shared memory you desire.
/sys/i386/i386/i386_param.c:28:#define SYSPTSIZE 0 /* dynamically... options "SYSPTSIZE=13"
sysptsize can not be changed by sysctl on the fly. sysptsize can not be changed by sysctl on the fly.
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