* Decermenter overflow interrupt atfer the init.d launch.
@ 2007-07-27 6:36 Nicolas Mederle
2007-07-27 6:46 ` Kumar Gala
0 siblings, 1 reply; 3+ messages in thread
From: Nicolas Mederle @ 2007-07-27 6:36 UTC (permalink / raw)
To: linuxppc-dev, linuxppc-embedded
Hi,
I want to know how the kernel switch the task. Because my kernel
start very well, and it launch the init.d. With the log, i can see that
the kernel launch the getty task. But after, there is a decrementer
overflow interrupt ( vector at adress 900 ). Is it the task switch? Or
is it an error in the decrementer init.
--
Cordialement,
MEDERLE Nicolas.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Decermenter overflow interrupt atfer the init.d launch.
2007-07-27 6:36 Decermenter overflow interrupt atfer the init.d launch Nicolas Mederle
@ 2007-07-27 6:46 ` Kumar Gala
2007-07-27 7:26 ` Benjamin Herrenschmidt
0 siblings, 1 reply; 3+ messages in thread
From: Kumar Gala @ 2007-07-27 6:46 UTC (permalink / raw)
To: Nicolas Mederle; +Cc: linuxppc-dev, linuxppc-embedded
On Jul 27, 2007, at 1:36 AM, Nicolas Mederle wrote:
> Hi,
>
> I want to know how the kernel switch the task. Because my
> kernel
> start very well, and it launch the init.d. With the log, i can see
> that
> the kernel launch the getty task. But after, there is a decrementer
> overflow interrupt ( vector at adress 900 ). Is it the task
> switch? Or
> is it an error in the decrementer init.
This should be a task switch. The decrementer is used to handle the
periodic interrupt to switch processes.
- k
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Decermenter overflow interrupt atfer the init.d launch.
2007-07-27 6:46 ` Kumar Gala
@ 2007-07-27 7:26 ` Benjamin Herrenschmidt
0 siblings, 0 replies; 3+ messages in thread
From: Benjamin Herrenschmidt @ 2007-07-27 7:26 UTC (permalink / raw)
To: Kumar Gala; +Cc: linuxppc-dev, linuxppc-embedded
On Fri, 2007-07-27 at 01:46 -0500, Kumar Gala wrote:
> On Jul 27, 2007, at 1:36 AM, Nicolas Mederle wrote:
>
> > Hi,
> >
> > I want to know how the kernel switch the task. Because my
> > kernel
> > start very well, and it launch the init.d. With the log, i can see
> > that
> > the kernel launch the getty task. But after, there is a decrementer
> > overflow interrupt ( vector at adress 900 ). Is it the task
> > switch? Or
> > is it an error in the decrementer init.
>
> This should be a task switch. The decrementer is used to handle the
> periodic interrupt to switch processes.
I would have expected quite of few of these actually before you get
there :-)
Ben.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-07-27 7:26 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-07-27 6:36 Decermenter overflow interrupt atfer the init.d launch Nicolas Mederle
2007-07-27 6:46 ` Kumar Gala
2007-07-27 7:26 ` Benjamin Herrenschmidt
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).