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List:       linux-ide
Subject:    Re: Regression with 0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")
From:       Jarkko Nikula <jarkko.nikula () linux ! intel ! com>
Date:       2016-10-21 14:05:06
Message-ID: fe5f1324-a06f-9d53-5d91-7508742fbf5c () linux ! intel ! com
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On 10/21/2016 04:27 PM, Christoph Hellwig wrote:
> Hi Jarkko,
>
> please try the two fixes queue up in the libata tree for this:
>
> https://git.kernel.org/cgit/linux/kernel/git/tj/libata.git/log/?h=for-4.9-fixes
>
Great! Commit 17a51f12cfbd ("ahci: only try to use multi-MSI mode if 
there is more than 1 port") fixed the non-working SATA on a machine with 
single port and it continues using MSI.

Another machine with more ports still uses IO-APIC (was using MSI before 
0b9e2988ab22 ("ahci: use pci_alloc_irq_vectors")). Then I applied 
a478b097474c ("ahci: fix nvec check") but didn't see changes.

-- 
Jarkko
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