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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Patrick MacArthur <patrick@patrickmacarthur.net>,
 Markus Theil <markus.theil@tu-ilmenau.de>, dev@dpdk.org,
 Mark Kavanagh <mark.b.kavanagh@intel.com>
Cc: stephen@networkplumber.org, Bob Noseworthy <ren@iol.unh.edu>,
 Patrick MacArthur <pmacarth@iol.unh.edu>,
 "O'Driscoll, Tim" <tim.odriscoll@intel.com>
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Date: Fri, 13 Oct 2017 03:49:56 +0100
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Subject: Re: [dpdk-dev] [PATCH v7 5/6] igb_uio: use kernel functions for
 masking MSI-X
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On 10/12/2017 6:04 PM, Ferruh Yigit wrote:
> On 10/9/2017 10:56 PM, Patrick MacArthur wrote:
>> Hi, Markus,
>>
>> This commit appears to cause a regression on CentOS 7.4 with the in-box 
>> Linux 3.10.0-639-2.2.el7.x86_64 kernel. Although the kernel module 
>> appears to build correctly, when I attempt to load the module with 
>> insmod, it fails and I see the following errors in dmesg:
>>
>>> [620323.805125] igb_uio: Unknown symbol unmask_msi_irq (err 0)
>>> [620323.805163] igb_uio: Unknown symbol mask_msi_irq (err 0)
>>
> 
> Hi Patrick, Mark,
> 
> Thanks for reporting, I will check it.

Can you please test http://dpdk.org/dev/patchwork/patch/30325/

> 
> 
>> It also fails with the same dmesg errors if I copy it into 
>> /lib/modules/$(uname -r)/extra, run depmod, and try to modprobe it.
>>
>> Running git bisect points to this commit as the root cause.
>>
>> This issue was identified as part of setting up the DPDK performance 
>> test lab CI environment at the University of New Hampshire 
>> InterOperability Laboratory.
>>
>> Thanks,
>> Patrick
>>
> <...>
>