Arne Wörner wrote:

--- Michael Conlen <[EMAIL PROTECTED]> wrote:
I'm trying to tune the system to allow very large
mmap()'s in a
I had a similar problem with shared memory.

I found an option in /sys/conf/NOTES.

I think it could help in your case, if u increase % options MAXDSIZ=(1024UL*1024*1024)
% options  MAXSSIZ=(128UL*1024*1024)
% options  DFLDSIZ=(1024UL*1024*1024)
apropriately.

E. g. in your /sys/<arch>/conf/<kernel name>
options MAXDSIZ=(2000UL*1024*1024)

But I dont know, if that is a good idea... Maybe you should use
nextboot(8) in case your box does not like the new kernel... :-)

-Arne



                

see /boot/defaults/loader.conf or man loader.conf. I would also suggest not using your entire amount of memory in these settings. Freebsd was crashing when i set these limits to 3G. 6.0-RELEASE #0 SMP kernel.


This box has 3G physical memory.
kern.dfldsiz=2147483648 # Set the initial data size limit # 2G kern.dflssiz=2147483648 # Set the initial stack size limit # 2G kern.maxdsiz=2147483648 # Set the max data size # 2G kern.maxtsiz=2147483648 # Set the max text size # 2G kern.maxssiz=2147483648 # Set the max stack size # 2G


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