From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
To: Nazarov Sergey <s-nazarov@domain.hid>
Cc: adeos-main@gna.org
Subject: Re: [Adeos-main] Interrupt handling problem on Compulab EM-X270.
Date: Tue, 22 Feb 2011 21:21:51 +0100 [thread overview]
Message-ID: <4D641ADF.1070802@domain.hid> (raw)
In-Reply-To: <274381298405447@domain.hid>
Nazarov Sergey wrote:
> Hi! I'm trying to use i-pipe 1.18-01 on ARM XScale-PXA270 based
> Compulab EM-X270 board. Kernel version is 2.6.33. With kernel,
> patched by i-pipe patch, network controller Davicom DM9000 standing
> unstable: sometimes a lot of packets are losing. This happens with
> CONFIG_IPIPE disabled even. The reason is lost interrupts, I see.
> Network controller uses GPIO line to produce interrupts. I have found
> that i-pipe patch changing irq handler handle_irq_edge to
> handle_irq_level (arch/arm/plat-pxa/gpio.c: pxa_init_gpio) without
> any conditions. What's the reason for that changing? The back change
> to edge-type handler returns network controller to stable state. Best
> regards, Sergey.
Does it work with CONFIG_IPIPE enabled?
--
Gilles.
next prev parent reply other threads:[~2011-02-22 20:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 20:10 [Adeos-main] Interrupt handling problem on Compulab EM-X270 Nazarov Sergey
2011-02-22 20:21 ` Gilles Chanteperdrix [this message]
[not found] ` <437861298457092@domain.hid>
[not found] ` <4D64E2A4.7080105@domain.hid>
[not found] ` <661661298458316@domain.hid>
[not found] ` <4D64E810.4040005@domain.hid>
[not found] ` <549401298459119@domain.hid>
[not found] ` <4D64F94E.5040407@domain.hid>
[not found] ` <41131298550043@domain.hid>
2011-02-24 12:37 ` Gilles Chanteperdrix
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