Messages in this thread | | | Date | Mon, 21 Aug 2017 14:07:37 +0200 | From | Christoph Hellwig <> | Subject | Re: system hung up when offlining CPUs |
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Hi Marc,
in general the driver should know not to use the queue / irq, as blk-mq will never schedule I/O to queues that have no online cpus.
The real bugs seems to be that we're using affinity for a device that only has one real queue (as the config queue should not have affinity). Let me dig into what's going on here with virtio.
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