linux-kernel - Re: [PATCH 3/4] PCI: PCIE AER: PCIE AER software error injection

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Date:	Fri, 24 Apr 2009 13:57:21 +0900
From:	Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>
To:	Huang Ying <ying.huang@...el.com>
CC:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Andi Kleen <andi@...stfloor.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH 3/4] PCI: PCIE AER: PCIE AER software error injection

Huang Ying wrote:
> On Fri, 2009-04-24 at 12:32 +0800, Kenji Kaneshige wrote:
>> Huang Ying wrote:
>>> Debugging PCIE AER code can be very difficult because it is hard to
>>> trigger various real hardware errors. This patch provide a software
>>> based error injection tool, which can fake various PCIE errors with a
>>> user space helper tool named "aer-inject". Which can be gotten from:
>>>
>>>   http://www.kernel.org/pub/linux/kernel/people/yhuang/
>>>
>>> The patch fakes AER error by faking some PCIE AER related registers
>>> and an AER interrupt for specified the PCIE device.
>>>
>>> Signed-off-by: Huang Ying <ying.huang@...el.com>
>>>
>>> ---
>>>  drivers/pci/pcie/aer/Kconfig       |    2 
>>>  drivers/pci/pcie/aer/Kconfig.debug |   18 +
>>>  drivers/pci/pcie/aer/Makefile      |    1 
>>>  drivers/pci/pcie/aer/aer_inject.c  |  472 +++++++++++++++++++++++++++++++++++++
>>>  4 files changed, 493 insertions(+)
>>>
>>> --- /dev/null
>>> +++ b/drivers/pci/pcie/aer/aer_inject.c
>>> @@ -0,0 +1,472 @@
>>> +/*
>>> + * PCIE AER software error injection support.
>>> + *
>>> + * Debuging PCIE AER code is quite difficult because it is hard to
>>> + * trigger various real hardware errors. Software based error
>>> + * injection can fake almost all kinds of errors with the help of a
>>> + * user space helper tool aer-inject, which can be gotten from:
>>> + *   http://www.kernel.org/pub/utils/pcie/aer-inject
>> Shouldn't it be 
>>
>> http://www.kernel.org/pub/linux/kernel/people/yhuang/
> 
> Yes. I forget to change this. But the directory to put aer-inject tar
> ball is subject to be changed. I am contacting with kernel.org ftp
> maintainer for appropriate place.
> 

I see.

By the way, thank you for this very nice feature!

Thanks,
Kenji Kaneshige


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