Re: Backport of a fix for HPSA (Disabling a disabled device problem during kdump) driver

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On 04/27/2015 02:55 PM, Greg KH wrote:
> On Mon, Apr 27, 2015 at 02:17:32PM +0200, Tomas Henzl wrote:
>> On 04/26/2015 11:27 AM, Greg KH wrote:
>>> On Mon, Apr 13, 2015 at 03:18:44PM +0200, Tomas Henzl wrote:
>>>> On 04/11/2015 12:45 AM, Vinson Lee wrote:
>>>>> On Tue, Jan 27, 2015 at 4:18 PM, Greg KH <greg@xxxxxxxxx> wrote:
>>>>>> On Tue, Jan 06, 2015 at 05:15:19PM +0100, Tomas Henzl wrote:
>>>>>>> On 01/05/2015 07:41 PM, Masoud Sharbiani wrote:
>>>>>>>> Dear stable maintainers,
>>>>>>>> Can you please backport commitid 132aa220b45d60e9b20def1e9d8be9422eed9616
>>>>>>>>  (hpsa: refine the pci enable/disable handling) to 3.10 stable (and
>>>>>>>> earlier, if applicable)?
>>>>>>> Please do not apply this patch isolated from his friend, the
>>>>>>> 859c75aba20264d87dd026bab0d0ca3bff385955 hpsa: add missing pci_set_master in kdump path
>>>>>>> needs to be applied together with the 132aa220b45d60e9b20def1e9d8be9422eed9616 .
>>>>>>>
>>>>>>> In addition to that, after the original issue goes away you may notice sometimes
>>>>>>> an unhandled irq 16 message, to fix this a patch is posted
>>>>>>> here http://www.spinics.net/lists/linux-scsi/msg80316.html
>>>>>>> This patch still awaits a maintainers review though.
>>>>>>>
>>>>>>> Probably the best idea is to wait until the issue is solved completely.
>>>>>> I'll wait, when it all gets worked out, please let stable@ know what
>>>>>> patches to apply where.
>>>>>>
>>>>>> thanks,
>>>>>>
>>>>>> greg k-h
>>>>>> --
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>>>>> Hi, Thomas.
>>>>>
>>>>> The unhandled irq 16 issue seems to be fixed by 4.0-rc1 commit "hpsa:
>>>>> turn off interrupts when kdump starts".
>>>>>
>>>>> Are the following patches suitable for stable now?
>>>> Yes, I believe they are, just note that 
>>>> 03741d9 hpsa: fix memory leak in kdump hard reset
>>>> is not a part of that group we discussed before, but it may be added
>>>> to stable too.
>>>>
>>>> Cheers,
>>>> Tomas
>>>>
>>>>> 3b74729 hpsa: turn off interrupts when kdump starts
>>>>> 03741d9 hpsa: fix memory leak in kdump hard reset
>>>>> 859c75a hpsa: add missing pci_set_master in kdump path
>>>>> 132aa22 hpsa: refine the pci enable/disable handling
>>> So what order, and to what stable tree(s) do you want these applied to?
>>> They seem to span a number of kernel versions, so I'm not quite sure
>>> what you are wanting me to do.
>> Please add it in this order
>> 1. 132aa220b4 hpsa: refine the pci enable/disable handling
>> 2. 859c75aba2 hpsa: add missing pci_set_master in kdump path
>>    The first two patches create the fix Masoud has asked for originally to port to stable.
>> 3. 3b74729878 hpsa: turn off interrupts when kdump starts
>>    The third should be added too, it fixes an issue made visible by the first patch
>>
>> The fourth patch
>> 03741d956e hpsa: fix memory leak in kdump hard reset
>> is completely unrelated to the first group, so it may be added after or before
>> or in the same sequence as it is in the mainline - that is before the third patch.
>> This patch is tiny error path fix - not sure if important enough for stable.
> Which stable tree(s) do you want these applied to?  As these "span"
> different kernel versions, I have no idea of what to do here.

Masoud has asked for the inclusion, I think that what he wrote was - "3.10 stable (and earlier, if applicable)",
I don't know much about stable so I can't decide to which tree(s) the series should be ported.

>
> Please be specific.
>
> thanks,
>
> greg k-h

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