Summary Kmem and Monitor

From: Nick Leonard <nickl_at_poole-tr.swest.nhs.uk>
Date: Wed, 27 Oct 1999 16:14:42 +0100

I received three Replies to the message I posted
Thanks to :
Richard Bemrose
Lew Randerson
Alan_at_ nabeth

I have tried the ideas they put forward such i.e.

Permissions of /dev/kmem and of the monitor program
and checked the group setup
 Alan sent

If the file /dev/kmem really didn't exist you'd get the
        message:

        monitor: live: Can't open /dev/kmem: No such file or directory.

        The "No such device or address" message occurs when Monitor
        tries to read from a kernel address that doesn't exist or
        is protected. The Freeware CDROM version may include some
        disk collection code that doesn't work reliably on all systems
        (it worked on all mine...). To verify, use the data collection
        option to limit what it tries to collect and see if the problem
        only occur when collecting disk data.

        If it is the disk collection problem and you can recompile
        from sources, remove the -DNEXUS_LIST option from the line
        of constant definitions in the Makefile and recompile. If
        you can't recompile, there is a newer version on gatekeeper.dec.com
        in /pub/DEC/monitor.alpha.tar.Z that does a better job of getting
        disk queue statistics on recent versions.

this I have not fully explored yet but if it does help I will post again

Thanks for the help

Regards

Nick L




***********************
Original Post
***********************************


Hi all,

I believe this is in the archives but I cannot find it

I have 4 x4.0d machines on two the Freeware program monitor works fine
on the other two it crashes out with :

monitor: curses: window size is 0x0
monitor: read_kernel: can't read from /dev/kmem: no such device or address

kmem does exist in /dev/ and there seems to be no major difference between
the machines that work and those that do not
The original 4.0d disk was copied twice and it is the copies that fail to work !!
they were copied by dd.

I will Summerise

any ideas ??

Regards

Nick Leonard
Systems Admin
Poole Hospital NHS Trust



Nick Leonard
Systems Administrator
Poole Hospital NHS Trust
Received on Wed Oct 27 1999 - 15:17:10 NZDT

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