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Date:      Tue, 30 Nov 1999 17:21:14 +0000
From:      Artur Silveira da Cunha <Artur.Silveira@rezo.com>
To:        freebsd-bugs@freebsd.org, freebsd-stable@freebsd.org
Subject:   vm_fault witn 3.3-Release with NFS and Panic
Message-ID:  <38440789.739A7EF6@rezo.com>

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Hello

I'm working with 3.3 Release stable in dual processing and I obtains a
vm_fault error and after some seconds an automatic  reboot or a system
lock.

1) How I obtain the vm_panic

My hardware configuration follows:
  Asus P2B-D with 2 Pentium III 500Mhz
  128MB memory
  Adaptec 2940UW
  ethernet card Kingston

I have several NFS mounts served by an AIX computer.

I use the  Freebsd computer for tests only.

The error is always obtained while compiling by NFS the lynx package
(./configure and make)  at the moment where the makefile makes a copy of
the linx to .. .

The error is the following:
    /kernel: vm_fault: pager read error, pid 6951 (cp)

I restart the computer and obtains at the same moment the vm_fault
error and reboots!!!

2) Some additional tests
a) I try to copy the lynx to the fixed disks and I obtains the lynx
package normally compiled.
b) simultaneous loopings copy of several files works without problems
c) the same with an SparcSolaris with simultaneous copy, works without
problems

3) No vm_fault with options  -r=1024,-w=1024
   I could obtain my lynx with NFS when I mount the NFS with packets at
1024 bytes size.


What do you think about this. It's normal in FreeBsd that I reduce the
packet size to 1024?
It exists another problem (network driver?).
Can I use FreeBsd without the fear that I cant give to me computer a big
NFS load?



Artur Silveira

--
Artur Silveira da Cunha
email: Artur.Silveira@rezo.com
REZO+
www.rezo.com
Tel: 33 1 44 23 02 61
Fax: 33 1 44 23 94 45




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