On Tue, 2016-03-15 at 10:35 -0600, Alex Williamson wrote: > Fault rates can easily overwhelm the console and make the system > unresponsive. Ratelimit to allow an opportunity for maintenance. > > Signed-off-by: Alex Williamson <alex.william...@redhat.com>
Rather than just rate-limiting the printk, I'd prefer to handle this explicitly. There's a bit in the context-entry which can tell the IOMMU not to bother raising an interrupt at all. And then we can re-enable it if/when the driver recovers the device. (Or perhaps just when it next does a mapping). We really ought to be reporting faults to drivers too, FWIW. I keep meaning to take a look at that. -- David Woodhouse Open Source Technology Centre david.woodho...@intel.com Intel Corporation
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