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[ts-7000] Re: usleep < 10 msec

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Subject: [ts-7000] Re: usleep < 10 msec
From: "charliem_1216" <>
Date: Mon, 19 May 2008 12:41:09 -0000
Hi Jürg --

--- In  "Juerg Lehni" <> wrote:
>
> Hi Charlie,
>
> Could you tell me which versions of kernel and RT / HRT patches you
managed to get to
> work?

My testing was done around the 2.6.21 to early 2.6.22-rc time frame,
nothing recent.  This was before TS had a 2.6 TS kernel; I used
vanilla w/ a few patches for TS boards.

>
> I tried a few but so far did not find one that worked for ARM. I get
the impression that
> these patches are mostly tested for x86 only.

I read that recently the RT / HRT patches have been re-factored so
that they can be fully git-bisectable.  As you said, x86 is OK, but
ARM may not be fixed up yet, AFAIK. 

2.6.23.12-rt14 seems to be well-tested with ARM.

Very recently 2.6.25.4-rt1 was announced:
http://marc.info/?l=linux-rt-users&m=121105497615445&w=4

What problems show up for you?

HTH

Regards, ......... Charlie

>
> Thanks,
>
> Jürg
>
> --- In  "charliem_1216" <charliem_1216@> wrote:
> >
> > Hi Steff --
> >
> > --- In  "Steffanus Wiedjaja" <steff_jr@>
> > wrote:
> > >
> > > --- In  "charliem_1216" <charliem_1216@>
> > > wrote:
> > > > uS.  I'd be happy to test some other code on 2.6 if it would
> > help,
> > > > but it sounds like you want to stick to 2.4 kernels.
> > > >
> > > > Regards, ......... Charlie
> > > >
> > >
> > > Hi Charlie,
> > > It's seems you're successfully port 2.6 kernel into 7250, can u
> > > share how to do that? We will very appreciate.
> > >
> > > best regards,
> > > steff
> > >
> >
> > I wrote about the steps I used in:
> > http://tech.groups.yahoo.com/group/ts-7000/message/5497
> > But many other people have also written summaries about their
> > approaches, which you can find in the archives.
> >
> > Since my post above I have moved to a more recent kernel, and
> > started using Ingo's RT and HRT patchset, all without any real
> > problems.  Note that my testing is done mostly using EABI and
> > NFSroot, and I have not yet put a modern kernel / distro back into
> > flash.
> >
> > Regards, ....... Charlie
> >
>



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