From: Ralf Roesch <xenomai@cantastic.org>
To: xenomai@xenomai.org
Subject: Re: [Xenomai] Hung task on Xenomai patched ARM 3.8.13 BeagleBone Kernel
Date: Wed, 16 Oct 2013 20:12:23 +0200 [thread overview]
Message-ID: <525ED707.2030809@cantastic.org> (raw)
In-Reply-To: <525EB7A2.1050601@xenomai.org>
On Wed Oct 16 2013 17:58:26 GMT+0200 (CEST), Gilles Chanteperdrix
<gilles.chanteperdrix@xenomai.org> wrote:
>
> If the issue is not a timer issue, and it does not seem to be, the
> most probable explanation is that either the MMC driver or the
> interrupt controller does not like receiving interrupts while they are
> masked. In this case, you will find that the patched kernel does not
> work with CONFIG_IPIPE but works with CONFIG_IPIPE off and
> CONFIG_XENOMAI off.
> Do you know if the interrupt is level or edge triggered?
>
> Regards.
>
>
The mmc interrupts are handled by INTC. I assume they are level triggered:
-> interrupt section of the AM335x technical reference manual (BBB is
based on AM3359):
--
The INTC supports only level-sensitive incoming interrupt detection. A
peripheral asserting an interrupt
maintains it until software has handled the interrupt and instructed the
peripheral to deassert the interrupt.
--
regards
Ralf
next prev parent reply other threads:[~2013-10-16 18:12 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 22:23 [Xenomai] Hung task on Xenomai patched ARM 3.8.13 BeagleBone Kernel Charles Steinkuehler
2013-10-16 10:44 ` Gilles Chanteperdrix
2013-10-16 11:10 ` Charles Steinkuehler
2013-10-16 11:13 ` Gilles Chanteperdrix
2013-10-16 11:09 ` Gilles Chanteperdrix
2013-10-16 11:38 ` Charles Steinkuehler
2013-10-16 11:50 ` Gilles Chanteperdrix
2013-10-16 12:08 ` Charles Steinkuehler
2013-10-16 12:28 ` Charles Steinkuehler
2013-10-16 12:44 ` Gilles Chanteperdrix
2013-10-16 12:52 ` Charles Steinkuehler
2013-10-16 15:25 ` Charles Steinkuehler
2013-10-16 15:58 ` Gilles Chanteperdrix
2013-10-16 16:12 ` Charles Steinkuehler
2013-10-16 19:41 ` Charles Steinkuehler
2013-10-17 0:58 ` Charles Steinkuehler
2013-10-17 2:21 ` Charles Steinkuehler
2013-10-17 9:29 ` Gilles Chanteperdrix
2013-10-17 10:24 ` Ralf Roesch
2013-10-17 12:39 ` Charles Steinkuehler
2013-10-17 15:12 ` Ralf Roesch
2013-10-17 18:43 ` Gilles Chanteperdrix
2013-11-04 12:38 ` Charles Steinkuehler
2013-10-16 18:12 ` Ralf Roesch [this message]
2013-10-16 12:51 ` Ralf Roesch
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