On Mon, Dec 03, 2018 at 05:28:09PM +0000, Robin Murphy wrote: > Now that we can dynamically allocate DMA debug entries to cope with > drivers maintaining excessively large numbers of live mappings, a driver > which *does* actually have a bug leaking mappings (and is not unloaded) > will no longer trigger the "DMA-API: debugging out of memory - disabling" > message until it gets to actual kernel OOM conditions, which means it > could go unnoticed for a while. To that end, let's inform the user each > time the pool has grown to a multiple of its initial size, which should > make it apparent that they either have a leak or might want to increase > the preallocation size. > > Signed-off-by: Robin Murphy <[email protected]> > --- > > Tagging this one as RFC since people might think it's silly.
I think finding out the numbers is useful, but I'm a little worried about claiming a possible leak. Maybe we just need to print a log message for each new power of 2 of entries reached? _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
