High load average but low cpu (xenomai can be the explanation?)

2009-09-21 Thread diba...@libero.it 
Hi,

I have an MPC880 @133MHz. If I look into the load (with uptime) I get 
values around 3.0 but my CPU is always under 5 percent (top). How could I 
explain this? I'm using linux 2.6.19 with xenomai but no xenomai application is 
running at all. I have a cramfs on a nor flash. What could be the problem? If I 
kill the process I developed the average load goes down.

Thank you,
Adi
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R: High load average but low cpu (xenomai can be the explanation?)

2009-09-22 Thread diba...@libero.it 
It is an AgentX subagent, it does a lot of things like accessing the hardware, 
handling messages from the main snmp agent received from an unix socket, 
writing files on jffs2 partition, polling hardware for alarms.
If I kill it, 
the load goes down. Anyway the subagent only takes 2-3% of the CPU..

Thank 
you,
Antonio.



>Da: daniele.b...@mta.it
>
>Can you give us some more details 
about your app?
>Is it multithread or single process?
>What do the process do?

>
>Bye Daniele
>
>
>
>-Messaggio originale-
>Da: linuxppc-dev-
bounces+daniele.bosi=mta...@lists.ozlabs.org [mailto:linuxppc-dev-
bounces+daniele.bosi=mta...@lists.ozlabs.org] Per conto di diba...@libero.it

>Oggetto: High load average but low cpu (xenomai can be the explanation?)
>

>Hi,
>
>I have an MPC880 @133MHz. If I look into the load (with uptime) I get

>values around 3.0 but my CPU is always under 5 percent (top). How could I

>explain this? I'm using linux 2.6.19 with xenomai but no xenomai application 
is
>running at all. I have a cramfs on a nor flash. What could be the problem? 
If I
>kill the process I developed the average load goes down.
>
>Thank you,

>Adi
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__pa giving strange phys address on PPC

2009-01-07 Thread diba...@libero.it 
Hi all,

I'm using a linux 2.6.19 (from Denx ELDK) on a PPC MPC880. In a driver (that 
uses TDM channels) I have some calls to __pa to get the physical address 
corresponding to a virtual address. The physical address returned by __pa is 
higher than the maximum physical memory I have on the board. This result make 
my driver hang. The driver I'm trying to use was written for a 2.4 kernel and 
I'm wondering if I have to replace the calls to __pa with some other API/MACRO.

Thank you in advance.

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Re: __pa giving strange phys address on PPC

2009-01-07 Thread diba...@libero.it 
I used __pa on the result of an uncached_mem_alloc. 
Furthermore __pa should work on the return of a kmalloc?

Thank you.

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lapb discipline

2009-01-15 Thread diba...@libero.it 
Hi all,

I need a LAPB line discipline. Is there anything in the 2.6 kernels? 
Anyone has anything even unstable or to complete?
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