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Date: Mon, 25 Oct 2010 20:15:26 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-help] Slow hard drive access in xenomai
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To: Peter Pastor <peter.pastor@domain.hid>
Cc: xenomai@xenomai.org

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Am 25.10.2010 20:04, Peter Pastor wrote:
> Hey Eric,
>=20
> Thanks for your prompt response. However, I do not have the "FLAT_MEMOR=
Y"
> option available. I can only select the sparse memory model.
>=20
> I have upgraded to 2.6.35 and so far the problem has not occured. Howev=
er, I
> haven't used the system much. Again, it seems that a specific event tri=
ggers
> the problem.
>=20
> Also, can someone tell me whether the ubuntu kernel patch is recommende=
d to
> use with Xenomai ? If so, can someone tell me how to get the patch for =
my
> particular kernel version 2.6.35 ? ( I am sorry if this is the wrong ma=
iling
> list to ask this question )

Xenomai is not supported over distro-patched kernels. While some of
their patches may be orthogonal, other may have all kinds of side
effects together with I-pipe that no one wants to track down (not that
those patches are inherently bad, just not tested against I-pipe).

If you are missing a specific feature, either port it back carefully or
wait for it to appear in the next upstream kernel (e.g. AppAmor is now
in 2.6.36, and I guess we will have I-pipe for that kernel within the
next weeks).

Jan


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