Re: [9fans] Fossil+venti install problem

["a.verardo@tecmav.com" <a.verardo@tecmav.com>]

----- Original Message -----
Da : erik quanstrom <quanstro@quanstro.net>
A : 9fans@cse.psu.edu
Oggetto : Re: [9fans] Fossil+venti install problem
Data : Wed, 9 Jan 2008 08:11:04 -0500

> > On Dec 27 I wrote about a problem I had installing a
> > fossil+venti config using the ISO image downloaded on
> > Dec 22:
> > 
> > * On several HW setup, from P500 to P3000, the
> > * install goes ok but just after the boot from HD
> > * starts an endless activity (> 20 h ?!) with a steady
> > * 100% cpu load and periodic (1 sec seek, 3 sec. pause)
> > * disk load. Then the machine hangs.
> > 
> > The same behaviour has also been observed in the
> > University lab by some students working on a thesis
> > about Plan9. 
> > Is there other 9fan(s) who had the same problem ?
> > 
> > a.v.
> 
> i hesitate to answer because i have not seen such a
> problem nor do i run venti or fossil.
> 
> i haven't any answers, but perhaps these questions would
> help narrow things down (assuming of course that you
> haven't hit an actual venti bug):
> 
> 1. what kind of drives are you using; what hba?  have you
> enabled dma? 2. which processes are accumulating cpu time?
> 3. what is the interrupt load, memory usage? ("stats
> -lsef")
> 
> - erik
About 1. 2. and 3. I've no precise info now. The CPU is
mainly used by fossil/venti and the load is high enough to
freeze
rio almost totally (the mouse cursor moves every 5-6 sec on
a P3000).
Have been used PCs very different in age/disks/ram etc,
always with the same result.

Usually, just after the first boot, there is a strong disk
activity
only for a few minutes and with a reasonable rio response.
After that
the system get idle it is possible proceed with the
configuration. 

This is exactly the behaviour with all the other ISOs,
included
the one downloaded on Jan-07.

In all tests has been repeated exactly the same "default"
install
procedure without seeing any message error.

adriano