linux-kernel - Re: 3.7 RC1

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Message-ID: <20121023054716.GA20120@mwanda>
Date:	Tue, 23 Oct 2012 08:47:16 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	jasowang@...hat.com
Subject: Re: 3.7 RC1

On Mon, Oct 22, 2012 at 04:37:45PM -0700, K. Y. Srinivasan wrote:
> 
> While testing 3.7 RC1 I discovered that invoking the function orderly_poweroff()
> from an interrupt context will trigger an ASSERT(). This was not the case till
> recently. The comment preceding the orderly_poweroff() function claims that this
> function can be invoked from any context and in the current Hyper-V util driver,
> we support host-driven orderly shut down of the guest by invoking this
> orderly_poweroff() function in the context of the message callback. This code has
> been working for a very long time and it is broken now. Is my assumption that
> orderly_poweroff() could be invoked from the interrupt context a wrong assumption?

You can't call orderly_poweroff() from interrupt context.

regards,
dan carpenter
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