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Looks like repeatedly binding same fd to multiple gsi's with irqfd can use up a ton of kernel memory for irqfd structures. A simple fix is to allow each fd to only trigger one gsi: triggering a storm of interrupts in guest is likely useless anyway, and we can do it by binding a single gsi to many interrupts if we really want to. Cc: [email protected] Signed-off-by: Michael S. Tsirkin <[email protected]> Acked-by: Acked-by: Gregory Haskins <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
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