Rob Landley wrote:
Specifically, qemu isn't paravirtualized, it's fully virtualized. The same
kernel can run on real hardware just fine. (Sort of the point of the
project...)
I can yank the warning for the kernels I build (or set PASS_LIMIT to 9999999),
but I'd rather not carry any more patches than I can avoid...
The right thing to do is to add virtual FIFO exhaustion into the Qemu
device model. It really isn't a valid emulation of a UART that it has
an infinite FIFO behind it that can flood the interrupt handler for an
arbitrary number of fetches.
I was going to give a technical description of how to do it here, but
then I realized I might as well just write it up as a patch. Stay tuned.
-hpa
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