Bug 998

Summary:	kni: corruption when using incompatible version of rte_kni.ko
Product:	DPDK	Reporter:	omegacoleman
Component:	other	Assignee:	dev
Status:	UNCONFIRMED ---
Severity:	critical
Priority:	Normal
Version:	unspecified
Target Milestone:	---
Hardware:	All
OS:	All
Attachments:	dmesg for one BUG it caused

Description omegacoleman 2022-04-21 06:31:02 CEST

Created attachment 201 [details]
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.