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Bug
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Resolution: Unresolved
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Undefined
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None
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CNV v4.20.0, 4.19
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Quality / Stability / Reliability
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0.42
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False
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False
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None
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Important
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Customer Escalated
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None
Following https://issues.redhat.com/browse/CNV-69778 a simple memory hotplug was performed to a VM with an SR-IOV interface.
Memory was increased from 2G to 3G, migration was triggered and completed successfully, however target pod log shows failures during reattachment of NIC.
{"component":"virt-launcher","level":"error","msg":"cannot limit locked memory of process 70 to 9663676416: Operation not permitted","pos":"virProcessSetMaxMemLock:917","subcomponent":"libvirt","thread":"29","timestamp":"2025-09-28T08:57:35.277000Z"}
{"component":"virt-launcher","kind":"","level":"error","msg":"failed to hot-plug host-devices: failed to attach host-device <hostdev type=\"pci\" managed=\"no\"><source><address type=\"pci\" domain=\"0x0000\" bus=\"0x18\" slot=\"0x08\" function=\"0x5\"></address></source><alias name=\"ua-sriov-nic-harlequin-slug-68\"></alias></hostdev>, err: virError(Code=38, Domain=0, Message='cannot limit locked memory of process 70 to 9663676416: Operation not permitted')\n","name":"rhel8-chocolate-salmon-47","namespace":"default","pos":"manager.go:593","timestamp":"2025-09-28T08:57:35.277401Z","uid":"e6f10f87-b3ff-4f77-bac4-096274ca29b0"}
MustGather https://drive.google.com/file/d/1LmJ4L5N0qCT2c546MeOMJOVSvMeFknLK/view?usp=sharing
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