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From: Richard Cochran <richardcochran@domain.hid>
To: Philippe Gerum <rpm@xenomai.org>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>,
	Jan Kiszka <jan.kiszka@domain.hid>
Subject: Re: [Xenomai-help] Stuck MSI in normal Linux driver
Date: Fri, 4 Mar 2011 09:11:21 +0100	[thread overview]
Message-ID: <20110304081121.GA12640@domain.hid> (raw)
In-Reply-To: <1299225060.2107.20.camel@domain.hid>

On Fri, Mar 04, 2011 at 08:51:00AM +0100, Philippe Gerum wrote:
> 
> I'm not saying this would be impossible to enable MSIs there, I'm just
> saying that so far: nobody cared. Terrae incognitae.

I care!

When the first MSI interrupt from my PCIe card should arrive, running
on a P2020RBD, the machine locks up. My BDI shows me that both cores
are going round in circles.

* core 1
  __ipipe_check_percpu_access ()  at kernel/ipipe/core.c:2067
  ipipe_suspend_domain ()         at kernel/ipipe/core.c:826
  __ipipe_check_percpu_access ()  at arch/powerpc/include/asm/ipipe_hwirq.h:57
  ipipe_suspend_domain ()         at kernel/ipipe/core.c:860
  cpu_idle ()                     at arch/powerpc/kernel/idle.c:64
  ipipe_suspend_domain ()         at arch/powerpc/include/asm/ipipe_hwirq.h:57

* core 2
  ipipe_suspend_domain ()         at kernel/ipipe/core.c:858
  cpu_idle ()                     at arch/powerpc/kernel/idle.c:64
  ipipe_suspend_domain ()         at arch/powerpc/include/asm/ipipe_hwirq.h:57

Any thoughts?

Thanks,

Richard


  parent reply	other threads:[~2011-03-04  8:11 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-02 15:16 [Xenomai-help] Stuck MSI in normal Linux driver Richard Cochran
2011-03-02 15:26 ` Gilles Chanteperdrix
2011-03-02 15:34   ` Richard Cochran
2011-03-02 15:38     ` Gilles Chanteperdrix
2011-03-02 18:18   ` Jan Kiszka
2011-03-03  7:21     ` Richard Cochran
2011-03-03  7:32       ` Philippe Gerum
2011-03-03 12:25         ` Wolfgang Grandegger
2011-03-03 12:30           ` Jan Kiszka
2011-03-03 12:54             ` Philippe Gerum
2011-03-03 23:45               ` Jan Kiszka
2011-03-04  7:51                 ` Philippe Gerum
2011-03-04  8:09                   ` Jan Kiszka
2011-03-04  8:30                     ` Richard Cochran
2011-03-04  8:36                       ` Jan Kiszka
2011-03-04  8:11                   ` Richard Cochran [this message]
2011-03-04  8:16                     ` Jan Kiszka
2011-03-07  9:26                   ` Richard Cochran
2011-03-07 16:37                     ` Philippe Gerum
2011-03-07 18:33                       ` Richard Cochran
2011-03-08  7:55                         ` Richard Cochran
2011-03-07 18:39                       ` Gilles Chanteperdrix
2011-03-07 21:47                         ` Philippe Gerum

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