From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 05 Apr 2012 12:56:03 +0200
From: Wolfgang Grandegger <wg@domain.hid>
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Subject: Re: [Xenomai-help] Cross-link.c ---RTSER_RTIOC_WAIT_EVENT
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To: Minh GIANG <giang.hminh@domain.hid>
Cc: xenomai-help <xenomai@xenomai.org>

On 04/04/2012 11:18 AM, Minh GIANG wrote:
> hello,
> 
> i did what you told me, i compiled the kernet with patch which you send me,
> and the result of dmesg
> 
> [ 1636.156641] base=0x2f8 iir=0x1
> [ 1636.157672] base=0x2f8 iir=0x4
> [ 1636.157675] base=0x2f8 status=0x100
> [ 1636.157677] base=0x2f8 iir=0x1
> [ 1636.158713] base=0x2f8 iir=0x4
> [ 1636.158715] base=0x2f8 status=0x100
> [ 1636.158717] base=0x2f8 iir=0x1
> [ 1636.250404] base=0x3f8 iir=0x2
> [ 1636.250407] base=0x3f8 status=0x0
> [ 1636.250410] base=0x3f8 iir=0x1
> [ 1636.251425] base=0x2f8 iir=0x4
> [ 1636.251427] base=0x2f8 status=0x100
> [ 1636.251429] base=0x2f8 iir=0x1
> [ 1636.252016] base=0x2f8 iir=0x4
> [ 1636.252016] base=0x2f8 status=0x100
> [ 1636.252016] base=0x2f8 iir=0x1
> [ 1636.252016] base=0x2f8 iir=0x4
> [ 1636.252016] base=0x2f8 status=0x100
> [ 1636.252016] base=0x2f8 iir=0x1
> [ 1636.252016] base=0x2f8 iir=0x4
> [ 1636.252016] base=0x2f8 status=0x100
> [ 1636.252016] base=0x2f8 iir=0x1
> [ 1636.252016] base=0x2f8 iir=0x4
> [ 1636.252016] base=0x2f8 status=0x100
> [ 1636.252016] base=0x2f8 iir=0x1
> [ 1636.256619] base=0x2f8 iir=0x4
> [ 1636.256621] base=0x2f8 status=0x100
> [ 1636.256623] base=0x2f8 iir=0x1
> [ 1636.257665] base=0x2f8 iir=0x4
> [ 1636.257668] base=0x2f8 status=0x100
> [ 1636.257670] base=0x2f8 iir=0x1
> [ 1636.258693] base=0x2f8 iir=0x4
> [ 1636.258696] base=0x2f8 status=0x100
> [ 1636.258698] base=0x2f8 iir=0x1
> 
> i wait your response

Looks pretty normal, at a first glance. Could you please send a longer
trace covering more than one cycle? I will then have a closer look after
eastern.

BTW: what Xenomai and Linux kernel version do you use?

Wolfgang.