I'm running NetBSD/sparc 1.5.2 on an SS10.  The machine's main task 
is to run squid and that process has begin to restart once a day or 
so, generating the error

   xcalloc: Unable to allocate 1 blocks of 4104 bytes!

which the FAQ says is due to the process's maximum data segment size 
being reached.  Is that value set by MAXDSIZ in

   /usr/src/sys/arch/sparc/include/vmparam.h

(256 MB by default), and am I free to make it whatever I like, then 
build a new kernel?

Is there a way to raise the limit just for the squid process?  I 
experimented with sysctl (squid's pid was 18116):

# sysctl proc.18116.rlimit.datasize.hard \
          proc.18116.rlimit.datasize.soft
proc.18116.rlimit.datasize.hard = 268435456
proc.18116.rlimit.datasize.soft = 268435456
# sysctl -w proc.18116.rlimit.datasize.soft=373293056
proc.18116.rlimit.datasize.soft: 268435456 -> 373293056
ap0# sysctl -w proc.18116.rlimit.datasize.hard=373293056
proc.18116.rlimit.datasize.hard: 268435456 -> 373293056
ap0# sysctl proc.18116.rlimit.datasize.soft \
             proc.18116.rlimit.datasize.hard
proc.18116.rlimit.datasize.soft = 268435456
proc.18116.rlimit.datasize.hard = 268435456

Why didn't the changes come into effect?


Ray