I am having a problem just like another person back in February. (see
http://marc.theaimsgroup.com/?l=linux-msdos&m=95088762010270&w=2)

The solution was to increase my kernel IPC limit and I'm not sure on how
to do that.  I have searched everywhere that I know, but I can not find
where this needs to be changed.

We have been running Dosemu for nearly 10 months now and we decided to
roll out our application company wide.  We went from 28 users to 80
users overnight.  Unfortunately, we can't use more than 32 sessions at a
time.

The 33 session simply goes blank and returns to my shell prompt.
Doing a "dos -D+a -odos.out" returns this:
        ...
        Mapping VBIOS = 0
        VID: install_int_10_handler: do nothing
        CONFIG: 0x4023    binary: 0100 0000 0010 0011 
        SHM: shm_qf_id=e22ff
        SHM: Initial Video IPC mapping unsuccessful: No space left on device
        SHM: Do you have IPC in the kernel?
        ...
I need to get to the point where I could conceivably run up to 120
sessions.

I would be very grateful to any one who knows how to fix this.

--Matt
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