On 09/09/2014 06:18 PM, Elliott, Robert (Server Storage) wrote:
>
>> -----Original Message-----
>> From: linux-scsi-ow...@vger.kernel.org [mailto:linux-scsi-
>> ow...@vger.kernel.org] On Behalf Of Tomas Henzl
>> Sent: Tuesday, 09 September, 2014 10:54 AM
>> Subject: Re: [PATCH 04/11] megaraid_sas : Firmware crash dump feature
>> support
>>
>> On 09/06/2014 03:25 PM, sumit.sax...@avagotech.com wrote:
>>> This feature will provide similar interface as kernel crash dump
>> feature.
>>> When megaraid firmware encounter any crash, driver will collect the
>> firmware raw image and
>>> dump it into pre-configured location.
>>>
> ...
>> With several controllers in a system this may take a lot memory,
>> could you also
>> in case when a kdump kernel is running lower it, by not using this
>> feature?
> What is the correct way for a driver to determine that it is
> running in a kdump kernel? The reset_devices global variable?
Yes reset_devices is used for this purpose.
I think, that I've seen some drivers even trying to reduce the normal
mem use, because a top performance is not needed.
>
>
> ---
> Rob Elliott HP Server Storage
>
>
>
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