[Bug 998] kni: corruption when using incompatible version of rte_kni.ko

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=998

            Bug ID: 998
           Summary: kni: corruption when using incompatible version of
                    rte_kni.ko
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: critical
          Priority: Normal
         Component: other
          Assignee: dev at dpdk.org
          Reporter: omegacoleman at gmail.com
  Target Milestone: ---

Created attachment 201
  --> https://bugs.dpdk.org/attachment.cgi?id=201&action=edit
dmesg for one BUG it caused

KNI ioctl functions copy data from userspace lib, and this interface of kmod is
not compatible indeed. If the user use incompatible rte_kni.ko, corruption is
detected in struct rte_kni_device_info. 

It could cause a BUG in librte_kni.ko and there's no measure to restore kni
function without reboot. The related EAL thread also vanishes.


> The attachment is dmesg for one BUG it caused.

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