Re: RCU stall on panda

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On Thursday 22 May 2014 04:59 AM, Alex Shi wrote:
> On 05/16/2014 09:37 PM, Santosh Shilimkar wrote:
>> On Friday 16 May 2014 03:41 AM, Alex Shi wrote:
>>> On 05/16/2014 02:36 AM, Santosh Shilimkar wrote:
>>>>>>>> yes.
>>>>>>>> My board is panda ES. without this revert, it works.
>>>>>>
>>>>>> Care to specify what linux version you are testing against?
>>>>>>
>>>>>> Does it hang in idle always immediately on booting?
>>>>>>
>>>>>> Or does the serial console first hang with sysrq still
>>>>>> working (ctrl-a h in minicom for help) with device
>>>>>> eventually locking up hard?
>>>>>>
>>>> I just posted an updated patch Alex on other thread.
>>>> Attaching here again for your reference. Please try
>>>> it out and see if the you still get a hang.
>>>
>>> it does not hang this time.
>>>
>> This is good news and exactly what I expected.
>>  
>>> but I am not sure it can solve my problem, since RCU stall is not easy
>>> to reproduce in short time.
>>>
>> You may want to run the system longer if you can. I suspect the RCU stall
>> was also side effect of missing interrupts.
> 
> Sure. it do remove the RCU stall on my panda board.
> 
Thanks for confirming. Tony already send fix upstream so it should
show up in next rc mostly

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