RE: Console Stops on NFS root startup

Clint,

 

Check your interrupt setup for the epic.  If something is wrong with the
uart interrupt configuration, you will stop seeing output after "Freeing
unused kernel memory".

 

Scott

 






___________________________________________________________________ 

  Scott N. Coulter 
  Senior Software Engineer 
  
  Cyclone Microsystems          
  370 James Street              Phone:  203.786.5536 ext. 118 
  New Haven, CT 06513-3051      Email:  scott.coulter@cyclone.com 
  U.S.A.                        Web:    http://www.cyclone.com 
___________________________________________________________________ 

________________________________

From: linuxppc-embedded-bounces+scott.coulter=cyclone.com@ozlabs.org
[mailto:linuxppc-embedded-bounces+scott.coulter=cyclone.com@ozlabs.org]
On Behalf Of Clint Thomas
Sent: Monday, September 25, 2006 3:29 PM
To: linuxppc-embedded@ozlabs.org
Subject: Console Stops on NFS root startup

 

Hey guys,

I have a dev board based loosely off the MPC8540ADS that I am trying to
boot over NFS. After setting up the proper kernel configuration and
sharing the root filesystem over NFS, I boot up the board. Everything
loads up fine, and it even says it mounts the root filesystem, however
this is the output I get.

IP-Config: Complete:
      device=eth0, addr=204.215.226.251, mask=255.255.255.0,
gw=204.215.226.50,
     host=204.215.226.251, domain=, nis-domain=(none),
     bootserver=204.215.226.250, rootserver=204.215.226.250, rootpath=
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
Looking up port of RPC 100003/2 on 204.215.226.250
Looking up port of RPC 100005/1 on 204.215.226.250
VFS: Mounted root (nfs filesystem).
Mounted devfs on /dev
Freeing unused kernel memory: 236k init

 

At this point, the serial console no longer displays or accepts input
from the keyboard. The system does not appear to hang, because when I
try to ping it from another point on the network, it responds. It seems
like either init is not executing at this point, or if the console is
being changed to another device. I wanted to know if anybody has had
this problem before. I tried building BusyBox as a static-linked binary,
which has not resolved the issue. I have also tried multiple root file
system builds, which has also not yielded a solution. Thanks for any
assistance with this.

 

Clinton Thomas