yes i understand (37,0) is not the /dev/zero, instead
its (2,12). infact i am using the latter one only. 
i am having a standlone init, with couple of basic
daemons. i am able to execute any O32 command either
compiled for NetBSD or IRIX. also a N32 command like
"sh" is also getting executed. 
i haven't done ktrace for these binaries. thanks for
suggestion.
btw, i am running this on Malta board with 64MB RAM.
is this alright??

--- Jaromir Dolecek <jdolecek@netbsd.org> wrote:
> Device (37, 0) is pms0 under NetBSD/i386, it may not
> be even
> assigned under sgimips. Thus, the
> /emul/irix/dev/zero device
> you created was most definitely not okay; if you
> really feel
> you need it, it should be softlinked to NetBSD
> /dev/zero.
> 
> Are your process limits bumped high enough? What
> does
> ktrace of the binary reveal?
> 
> GIRISH V. GULAWANI wrote:
> > 
> > Hello, all.
> > After adding COMPAT_IRIX option to the kernel I am
> > able to bring up the shell "sh" of IRIX 6.3, which
> I
> > suppose is N32 type. Some other commands basically
> O32
> > are also okay. However commands like elfdump,
> > mipscheck fail. The error message appears as --
> > rld_sbrk: Can't map /dev/zero -- probably not
> enough
> > virtual memory.
> > As I understand its trying to mmap the device
> > /dev/zero but since mmap is not initialized & also
> not
> > implemented, the sbrk fails to map. Please note
> that I
> > am just using lib & lib32. I am not emulating IRIX
> > devices. If I add /emul/irix/dev/zero, device
> number
> > (37, 0), even the O32 binaries mentioned above do
> not
> > work. For example "uname -a" does not work in this
> > case, while it works if I dont add emulation
> device.
> > Could anybody please help me in trying to figure
> out
> > how to handle this situation?? 
> > Many thanks & regards,
> > Girish.
> > 
> > 
> > =====
> > __________________________________
> > Girish V. Gulawani.
> > Tel: +81-90-7406-4009 (mobile)
> >      +81-44-753-5778  (home)
> >      (GMT+09:00)
> > __________________________________
> > 
> > __________________________________________________
> > Do You Yahoo!?
> > Yahoo! Health - Feel better, live better
> > http://health.yahoo.com
> > 
> 
> 
> -- 
> Jaromir Dolecek <jdolecek@NetBSD.org>
> http://www.NetBSD.org/Ports/i386/ps2.html
> -=- We should be mindful of the potential goal, but
> as the tantric    -=-
> -=- Buddhist masters say, ``You may notice during
> meditation that you -=-
> -=- sometimes levitate or glow.   Do not let this
> distract you.''     -=-


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