[dpdk-dev] [PATCH v7 5/6] igb_uio: use kernel functions for masking MSI-X

Ferruh Yigit ferruh.yigit at intel.com
Thu Oct 12 19:04:24 CEST 2017

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.

> 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

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