linux-kernel - Re: [PATCH] irq: call also chip->irq_mask from irq

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Message-ID: <alpine.LFD.2.02.1109142149060.2723@ionos>
Date:	Wed, 14 Sep 2011 21:50:19 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Tero Kristo <t-kristo@...com>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] irq: call also chip->irq_mask from irq_disable

On Wed, 14 Sep 2011, Tero Kristo wrote:
> On Wed, 2011-09-14 at 18:04 +0200, Thomas Gleixner wrote:
> > What are you trying to solve ?
> 
> I was seeing a hang with a chain handler implementation that was caused
> by this delayed disable implementation, I am using a generic chip with
> irq_mask / irq_unmask. Adding this patch to the kernel fixed the hang in
> this case. There might be something wrong in my implementation of the
> chain handler itself, I'll take a look at it again and try to figure out
> another way to avoid it. I have another idea I can pursue, and based on
> some initial testing it actually seems to be working.

chained handlers are not subject to disable/enable_irq usually. Care
to share the code ?

Thanks,

	tglx
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