Luke 14da080dcf Kernel/USB: Use allocate_kernel_region in Transfer buffer allocations ...

Previously it would create a contiguous AVMO manually and pass it to
MM. This uses supervisor pages that quickly run out as they never get
returned and crash the system.

Instead, use allocate_kernel_region as we're only allocating a page so
it will be contiguous and will be returned when destroyed.

A potentially better solution would be to use a pool of transfers to
avoid all the allocations. This just prevents the system from crashing
within ~5 seconds from the continuous hub polling.

2021-08-14 21:22:44 +02:00

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