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	 <adak53h1q29.fsf@cisco.com>
Date: Fri, 12 Jun 2009 10:22:49 -0700
Message-ID: <86802c440906121022s532ee0f7tc556251d22ffd139@mail.gmail.com>
Subject: Re: mthca double free irqs
From: Yinghai Lu <yhlu.kernel@gmail.com>
To: Roland Dreier <rdreier@cisco.com>
Cc: "Barnes, Jesse" <jesse.barnes@intel.com>, Matthew Wilcox <matthew@wil.cx>,
       Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
       general@lists.openfabrics.org, linux-kernel@vger.kernel.org
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On Fri, Jun 12, 2009 at 7:31 AM, Roland Dreier<rdreier@cisco.com> wrote:
> Thanks, will take a look. ?It does seem this is on an error path:
>
> ?> [ ?606.818317] ib_mthca 0000:c4:00.0: NOP command failed to generate
> ?> interrupt (IRQ 98), aborting.
> ?> [ ?606.826709] ib_mthca 0000:c4:00.0: BIOS or ACPI interrupt routing problem?
>
> So your system already had problems -- the driver didn't get an
> expected interrupt from the device.

I knew that. but we should not get that double freeing.

BIOS doesn't allocate proper MMIO range for that card.

YH
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