Matthew GarrettOne example is a recent Lenovo one, where the firmware appears to try to poke the NVME drive on resume. There's some indication that this is intended to deal with transparently unlocking self-encrypting drives on resume, but it seems to do so without taking IOMMU configuration into account and so things explode. It's kind of understandable why a vendor would implement something like this, but it's also kind of understandable that doing so without OS cooperation may end badly.
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