Re: [PATCH 3.14-rt] sas-ata/isci: dont't disable interrupts in qc_issue handler

[Paul Gortmaker <paul.gortmaker@windriver.com>]

On 15-02-18 06:38 AM, Sebastian Andrzej Siewior wrote:
> * Paul Gortmaker | 2015-02-14 11:01:16 [-0500]:
> 
>> On 3.14-rt we see the following trace on Canoe Pass for
>> SCSI_ISCI "Intel(R) C600 Series Chipset SAS Controller"
>> when the sas qc_issue handler is run:
> 
> So I have finally something that is using isci I would have assumed that
> I would be affected by this. But somehow it does not pop up…

Funny you should mention that, as I too had the same thought, since
I also did not see it on my machine with the same hardware, but I did
see it on the machine I was loaned to diagnose the issue.  I assumed
that the loaner machine had flaky media that was calling error handler
code that my machine would never run.

P.
--

> 
> Applied.
> 
> And we are down to
> | $ git grep -c 'local_irq_save\W' drivers/scsi/  | wc -l
> | 14
> 
> I hope the others are just old things nobody is using…
> 
> Sebastian
> 
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