From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <4B746FFE.20204@domain.hid> Date: Thu, 11 Feb 2010 22:00:46 +0100 From: Gilles Chanteperdrix MIME-Version: 1.0 References: <8b216e9e1002100327h3aa332ddl13ec590fcb81f0b7@domain.hid> <8b216e9e1002100358u71d73d36xb851e59e23e069d1@domain.hid> <4B72C18F.20903@domain.hid> <8b216e9e1002101128t1246a5deh28ca13229f1d688d@domain.hid> <8b216e9e1002111005h6b432bcby17d4127d3b9d385a@domain.hid> <4B7447AD.5050401@domain.hid> <8b216e9e1002111024h7c87d0c1n9f36a91602e52cd6@domain.hid> <4B744ED4.2000200@domain.hid> <8b216e9e1002111053gf6b4b2mf605e8c3b9f1c235@domain.hid> <4B745CAB.5000404@domain.hid> <8b216e9e1002111215h1c1dac81w1a1ca1d19a37378c@domain.hid> In-Reply-To: <8b216e9e1002111215h1c1dac81w1a1ca1d19a37378c@domain.hid> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Xenomai-help] Problems when cross-compiling Xenomai List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?UTF-8?B?RmVsaXBlIEJyYW5kw6NvIENhdmFsY2FudGk=?= Cc: Xenomai help Felipe Brand=C3=A3o Cavalcanti wrote: > 2010/2/11 Gilles Chanteperdrix >=20 >> Felipe Brand=C3=A3o Cavalcanti wrote: >>> 2010/2/11 Gilles Chanteperdrix >>> >>>> Felipe Brand=C3=A3o Cavalcanti wrote: >>>>> Sending the boot log and the xeno-test output as attachments. >>>> [ 0.000000] OMAP clockevent source: GPTIMER12 at 32768 Hz >>>> >>>> Definitely not OK. We do not want this unprecise clockevent source. >>>> Disable it in the kernel configuration (option CONFIG_OMAP_32K_TIMER= ). >>>> >>>> >>> This is very interesting - this option doesnt seem to be set in my >> current >>> kernel config. Ive attached my .config. >> Selecting GPTIMER 1 should work. But if you get lockups or thing like >> that, please try with a vanilla 2.6.30 to see if you get them. >> >> > Great - changing GPTIMER to 1 did the trick! Gilles, thank you very muc= h! >=20 > Here are the results of the first latency test, under 100% load: >=20 > RTT| 00:08:46 (periodic user-mode task, 1000 us period, priority 99) > RTH|----lat min|----lat avg|----lat max|-overrun|---msw|---lat best|--l= at > worst > RTD| 12.999| 13.769| 18.846| 0| 0| 12.538| > 44.692 > RTD| 13.076| 13.769| 20.692| 0| 0| 12.538| > 44.692 > RTD| 12.923| 13.769| 18.076| 0| 0| 12.538| > 44.692 > RTD| 12.846| 13.769| 20.153| 0| 0| 12.538| > 44.692 > RTD| 12.999| 13.769| 18.692| 0| 0| 12.538| > 44.692 > RTD| 12.999| 13.769| 19.230| 0| 0| 12.538| > 44.692 > RTD| 13.076| 13.769| 18.769| 0| 0| 12.538| > 44.692 > RTD| 13.076| 13.769| 19.153| 0| 0| 12.538| > 44.692 > RTD| 12.846| 13.769| 19.999| 0| 0| 12.538| > 44.692 >=20 > BTW, the system does seem a lot more stable now - no random errors. I w= ill > run some more tests, and will send in the results later - I will docume= nt > the procedure and post it online once we get Xenomai running well in th= e > IGEPv2. Ok. Good news. I would have liked to find out what was this building issue of yours, at least to be able to use your rootfs build system instead of building xenomai manually. --=20 Gilles Chanteperdrix, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com