Tom Chiverton wrote:
> On Tuesday 18 July 2006 01:13, Hans Omli wrote:
>> login prompt until I press Enter.  This problem doesn't appear on the
>> original release or Update 1 of RHEL4.  Critical issue for managing remote
>> servers, as I can't restart without someone in front of the box to press
>> <Enter>.

  This may or may not be related, but I was running CFMX7 on a Fedora 
Core 3 machine with a dac960 family RAID controller and was having jrun 
lockup when starting.
  Going to the console and touching anything woke it up.

  Traced it to jrun opening /dev/urandom and running the entropy pool 
dry. /dev/urandom blocks if it runs out of 'randomness'. This normally 
wouldn't happen as SCSI or IDE disk access adds to the 'entropy pool', 
but the DAC960 driver doesn't for some reason.

  Going to the console and just 'twiddling the mouse' would enable the 
startup to continue.

  I eventually stuck an IDE disk in the server and mounted it as swap 
space. The accesses to this to mount the swap volume during startup 
generated enough 'entropy' to allow jrun to start without blocking.

(Service since moved to RH AS4 with a SCSI RAID that does 'add to the 
entropy pool').

  Possibly a combination of your hardware configuration and software 
updates have caused a entropy shortage. Does your server console have a 
mouse on it ?. Does touching the mouse allow the startup to continue ?, 
if so it may be the same issue I had.

  Note on my server, starting jrun was the last thing it did, so I could 
ssh remotely and see that jrun had got stuck. Trying to access CD 
remotely was often enough to wake it up.




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