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Date: Tue, 25 Jan 2011 13:43:14 -0800
Message-ID: <AANLkTim4fG0-F0+E-DHa4=XGdk1rFbRA68nvt9bfURiK@mail.gmail.com>
Subject: Re: [PATCH v1 1/6] Add oops notification chain.
From: Aaron Durbin <adurbin@google.com>
To: Jeff Garzik <jeff@garzik.org>
Cc: Mike Waychison <mikew@google.com>, Greg KH <greg@kroah.com>,
        torvalds@linux-foundation.org, San Mehat <san@google.com>,
        Duncan Laurie <dlaurie@google.com>, linux-kernel@vger.kernel.org,
        Tim Hockin <thockin@google.com>
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On Tue, Jan 25, 2011 at 1:36 PM, Jeff Garzik <jeff@garzik.org> wrote:
> On 01/25/2011 03:01 PM, Mike Waychison wrote:
>>
>> On Mon, Jan 24, 2011 at 6:06 PM, Greg KH<greg@kroah.com>  wrote:
>>>
>>> On Mon, Jan 24, 2011 at 04:24:39PM -0800, Mike Waychison wrote:
>>>>
>>>> From: Aaron Durbin<adurbin@google.com>
>>>>
>>>> Later firmware patches in this series would like to be able to be
>>>> notified whenever an oops occurs on the system, so that it can be
>>>> recorded in the boot log.
>>>>
>>>> This patch introduces a notifier_block called "oops_notifier_list"
>>>> so that drivers can register to get called whenever an Oops is
>>>> triggered.
>>>
>>> But we already have a panic notifier list.  Why create a new one?
>>> What's wrong with the existing one that doesn't work properly for you?
>>
>> AFAICT, the panic notifier list doesn't get called on oops.
>
> Have you tried playing with panic_on_oops ?

Yes. We actually run in that setup. However, oops != panic. They are 2
distinct events. Sometimes we panic without the oops under certain
situations. That is why it is desirable to have 2 distinct events.
>
>        Jeff
>
>
>