From: Philippe Gerum <rpm@xenomai.org>
To: Jeroen Van den Keybus <jeroen.vandenkeybus@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>
Subject: Re: [Xenomai-core] Registering MSI interrupt with Xenomai fails
Date: Fri, 02 Nov 2007 15:59:40 +0100 [thread overview]
Message-ID: <472B3B5C.9010002@domain.hid> (raw)
In-Reply-To: <fd6a47a90711020730m662abcc9q69fcb4f87ad470cc@domain.hid>
Jeroen Van den Keybus wrote:
>
> Now looking into xnintr_attach().
>
>
> In xnintr_attach(), the crash occurs in xnarch_set_irq_affinity(). If
> the call is removed, the driver works as expected (gaining another 3
> usec of latency). Now investigating ipipe_set_irq_affinity.
>
arch_setup_msi_irq() creates an IRQ on-the-fly from the current
descriptor which is being converted to an MSI interrupt using
pci_msi_enable(). From that point, the I-pipe might have an obsolete
view of the interrupt map. I suspect an I-pipe issue here.
--
Philippe.
next prev parent reply other threads:[~2007-11-02 14:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-02 11:21 [Xenomai-core] Registering MSI interrupt with Xenomai fails Jeroen Van den Keybus
2007-11-02 11:50 ` Philippe Gerum
[not found] ` <fd6a47a90711020549u5630ec9cgda7042c8c6c0f10a@domain.hid>
[not found] ` <fd6a47a90711020636t73e357d5ub9cbca0675adc1d7@domain.hid>
2007-11-02 14:30 ` Jeroen Van den Keybus
2007-11-02 14:59 ` Philippe Gerum [this message]
2007-11-03 17:42 ` Jeroen Van den Keybus
2007-11-03 18:19 ` Philippe Gerum
2007-11-03 19:36 ` Jeroen Van den Keybus
2007-11-05 19:14 ` Jeroen Van den Keybus
2007-11-12 14:43 ` Jeroen Van den Keybus
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