linux-kernel - Re: [Bugfix 0/3] Convert eata driver to a normal PCI device driver

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Message-ID: <55F9266C.5060609@linux.intel.com>
Date:	Wed, 16 Sep 2015 16:21:00 +0800
From:	Jiang Liu <jiang.liu@...ux.intel.com>
To:	Arthur Marsh <arthur.marsh@...ernode.on.net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-scsi@...r.kernel.org, x86@...nel.org
Subject: Re: [Bugfix 0/3] Convert eata driver to a normal PCI device driver

On 2015/9/16 15:37, Arthur Marsh wrote:
> 
> 
> Jiang Liu wrote on 16/09/15 14:37:
>> On 2015/9/15 15:19, Arthur Marsh wrote:
>>>
>>>
>>> Jiang Liu wrote on 15/09/15 12:01:
>>>
>>>> HI Arthur,
>>>>      Really appreciate your help to test the patches. That's
>>>> a good sign we have moved forward a bit:)
>>>>      For kexec, it's always challenging to me. So could you
>>>> please help to provide full dmesg logs with working kernels
>>>> so I could try to figure out the order among scsi and PCI devices.
>>>> It may be shutdown order related.
>>>> Thanks!
>>>> Gerry
>>>
>>> OK, attached is the dmesg output from the 4.2.0 kernel where kexec
>>> worked.
>> Hi Arthur,
>>     Could you please also help to capture the log messages
>> of kexec, I need to those log messages to figure out the order
>> to shutdown PCI devices and scsi devices during kexec.
>> Thanks!
>> Gerry
>>
> 
> How would I capture the log messages of kexec (assuming that there are
> any, I couldn't see from the manual page entries and haven't seen
> anything beyond the screen images that I have already sent you)?
Hi Arthur,
	It would be great if we could capture the text as in the
picture posted by you at:
	http://www.users.on.net/~arthur.marsh/20150915547.jpg
	I guess a serial console could help us to capture those
log messages. To use serial console, we need to setup serial cable,
configure grub and kernel to use serial port as console.
Thanks!
Gerry

> 
> Regards,
> 
> Arthur.
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