From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Thu, 16 Apr 2015 15:43:07 +0200
From: Jan Kiszka <jan.kiszka@siemens.com>
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 <20150416132316.GD1589@hermes.click-hack.org>
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Subject: Re: [Xenomai] CLOCK_HOST_REALTIME failure on Xenomai 3
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>, GP Orcullo <kinsamanka@gmail.com>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>

On 2015-04-16 15:23, Gilles Chanteperdrix wrote:
> On Thu, Apr 16, 2015 at 07:20:09PM +0800, GP Orcullo wrote:
>> Hi,
>>
>> I'm trying to run Xenomai 3 on my Cubieboard2 but it fails the clocktest:
>>
>> # /usr/xenomai/bin/clocktest -C 42
>> clock_gettime failed for clock id == Tested clock: 42 (<unknown>)
>> CPU      ToD offset [us] ToD drift [us/s]      warps max delta [us]
>> --- -------------------- ---------------- ---------- --------------42
>>
>>   0                  0.0            0.000          0            0.0
>>   1                  0.0            0.000          0            0.0
>> clock_gettime failed for clock id 42
>>
>> The clock test runs fine on Xenomai 2:
>>
>> # clocktest -C 42
>> == Tested clock: 42 (CLOCK_HOST_REALTIME)
>> CPU      ToD offset [us] ToD drift [us/s]      warps max delta [us]
>> --- -------------------- ---------------- ---------- --------------
>>   0                  1.0            0.093          0            0.0
>>   1                  0.8            0.000          0            0.0
>> ^C
> 
> CLOCK_HOST_REALTIME is no longer 42 in Xenomai 3 (which is why
> clocktest tells you that the clockid 42 is unknown, it really is).
> 

CLOCK_HOST_REALTIME is an extension clock, thus you need

clocktest -E -C 42

in Xenomai 3.

Jan

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