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When the guest OS runs under critical memory pressure, the guest starts to kill processes. A guest monitor agent may scan 'oom_kill' from /proc/vmstat, and reports the OOM KILL event. However, the agent may be killed and we will loss this critical event(and the later events). For now we can also grep for magic words in guest kernel log from host side. Rather than this unstable way, virtio balloon reports OOM-KILL invocations instead. Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: zhenwei pi <pizhenwei@bytedance.com> Message-Id: <20240423034109.1552866-3-pizhenwei@bytedance.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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