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On x86_64, a hint to the compiler is not enough, we need to issue a MFENCE instruction. Replace the Acquire fence with a SeqCst one. Without this, it's still possible to miss an used_event update, leading to the omission of a notification, possibly stalling the vring. Signed-off-by: Sergio Lopez <slp@redhat.com> |
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Cargo.toml |