Very Computer

I'm getting baffled!

I have checked this out on three machines running 3.1.  Only the one
with 320 megs of memory bombs with ``Not enough memory'' while doing
this:

        mkhybrid -R -J -v -o /tmp/blah.iso /usr/src

I'm also able to make a 16 meg P60 fail, but she'll go way further
(mkhybrid of / -- does /usr/src plus lots more).

I've tried playing with ulimit, but that doesn't appear to make any
difference here.

I see swapctl -l always reporting 0 for used swap space.

To see what's happening, I've used the following:

        vmstat -w1
        ps -auxwk
        swapctl -l
        sysctl -a (just before and after bombing,
                   then diff the results)

I have yet to see anything obvious.  Does anybody have any ideas?
Anything?

Thanks!
Harry.

Quote:

> I'm getting baffled!

> I have checked this out on three machines running 3.1.  Only the one
> with 320 megs of memory bombs with ``Not enough memory'' while doing
> this:

>    mkhybrid -R -J -v -o /tmp/blah.iso /usr/src

> I'm also able to make a 16 meg P60 fail, but she'll go way further
> (mkhybrid of / -- does /usr/src plus lots more).

> I've tried playing with ulimit, but that doesn't appear to make any
> difference here.

> I see swapctl -l always reporting 0 for used swap space.

> To see what's happening, I've used the following:

>    vmstat -w1
>    ps -auxwk
>    swapctl -l
>    sysctl -a (just before and after bombing,
>               then diff the results)

> I have yet to see anything obvious.  Does anybody have any ideas?
> Anything?

Harry,

about it.
http://marc.theaimsgroup.com/?l=openbsd-misc&m=100410733828442&w=2

Anyway, I got around the problem by installing Jorg Schilling's cdrtools
which have their own mkhybrid/mkisofs. Not sure if they're in the ports
tree.

--
stephen

man ulimit. ulimit -m

in a nutshell you probably dont have enough memort allocatable. you c
an up this or permanently change this in /etc/login.conf

jose

<snip>

Quote:> > I have checked this out on three machines running 3.1.  Only the one
> > with 320 megs of memory bombs with ``Not enough memory'' while doing
> > this:

> >       mkhybrid -R -J -v -o /tmp/blah.iso /usr/src

<snip>

That's very interesting -- I should have thought to try using ktrace.

Quote:

> Anyway, I got around the problem by installing Jorg Schilling's cdrtools
> which have their own mkhybrid/mkisofs. Not sure if they're in the ports
> tree.

cdrtools doesn't appear to be in the ports tree.  However, the mkisofs
that comes with 3.1 is lean enough (leaner than mkhybrid (layman's
observation?  opinion?)) that it will make an iso of my /usr/src (if I
add a bit more, I get ``Not enough memory'').

I *was* concerned about my swap staying at zero -- however, I've
concluded that it's working as it should (again, layman's
observation).  After removing RAM and stressing the system, she
finally started to claim some swap space with 64 megs of RAM while
making an ISO (and bombing).  I feel very silly since my swap
partition is (from memory -- didn't double check) about 2 gigs (I
guess I had room to spare?), and swapctl reported it was using less
than 10 megs ( <blushing> ).

I should add -- this machine that I'm using has/is:

        - YP client
        - NFS client
        - 20G hard drive
        - Memory: Real: 44M/77M act/tot  Free: 233M

...Hopefully we (won't) hear that other people are having the same
trouble.

Anyways, I'll try and figure out why one of my other machines with
16megs works just fine...(also YP/NFS client)

Thanks!
Harry.

...

Quote:> > I have checked this out on three machines running 3.1.  Only the one
> > with 320 megs of memory bombs with ``Not enough memory'' while doing
> > this:

> man ulimit. ulimit -m

Actually, I did muck around with ulimit.  I got acquinted with it when
I compiled kde2 a while ago.  However, at that time, the error message
had to do with virtual memory.  I have not been able to fix *this*
trouble with ulimit at this time (I believe I've tried to increase all
possible options so far with no luck).

Quote:

> in a nutshell you probably dont have enough memort allocatable. you
> can up this or permanently change this in /etc/login.conf

There *is* something in /etc/login.conf that has upped my curiosity
(stack).  I wasn't able to increase it beyond 4megs with ulimit (so
far -- I have to triple check things because I'm stupid), but I'll try
again with login.conf...

Quote:

> jose

Thanks!
Harry.

<snip>

Quote:> (I believe I've tried to increase all
> possible options so far with no luck).

<snip>

Quote:> (stack).  I wasn't able to increase it beyond 4megs with ulimit (so
> far -- I have to triple check things because I'm stupid), but I'll try
> again with login.conf...

Yes, I was able to increase all possible options before (confirmed),
but without any effect -- playing around with login.conf didn't fix
things either, but it was a learning experience ;D

...

Harry.