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From: Thomas Gleixner <tglx@linutronix.de>
To: Kohji Okuno <okuno.kohji@jp.panasonic.com>
Cc: marc.zyngier@arm.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] genirq: Fix bad IRQ_ONSHOT in forced IRQ setting
Date: Fri, 18 Sep 2015 16:46:24 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1509181645490.3951@nanos> (raw)
In-Reply-To: <20150918.195645.642918355603329874.okuno.kohji@jp.panasonic.com>

On Fri, 18 Sep 2015, Kohji Okuno wrote:
> 
> irq thread(runs sdhci_thread_irq()) is waiting on
> drivers/mmc/core/core.c:mmc_wait_for_req_done() in order to access
> a SDIO register. And, this thread shoud be woken up from
> sdhci_irq() after the completion of the register access.
> But, since the IRQ is masked, sdhci_irq() is not called and  irq
> thread can not wake up. This is root cause, I think.
> What do you think about this?

Ah, that explains it. Let me think about it a bit.

Thanks,

	tglx

  reply	other threads:[~2015-09-18 14:47 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-17  7:13 Kohji Okuno
2015-09-17  7:59 ` Thomas Gleixner
2015-09-17  8:21   ` Kohji Okuno
2015-09-17  9:48     ` Kohji Okuno
2015-09-17 21:10       ` Thomas Gleixner
2015-09-18  0:35         ` Kohji Okuno
2015-09-18  9:04           ` Thomas Gleixner
2015-09-18  9:22             ` Kohji Okuno
2015-09-18 10:03               ` Marc Zyngier
2015-09-18 10:56                 ` Kohji Okuno
2015-09-18 14:46                   ` Thomas Gleixner [this message]
2015-09-19 15:33                     ` Kohji Okuno
2015-09-19 20:24                       ` Thomas Gleixner
2015-09-20  0:21                         ` Kohji Okuno

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