On Mon, Feb 9, 2015 at 8:19 PM, Tomasz Figa <[email protected]> wrote: > Even though the code uses the dt_lock spin lock to serialize mapping > operation from different threads, it does not protect from IOMMU > accesses that might be already taking place and thus altering state > of the IOTLB. This means that current mapping code which first zaps > the page table and only then updates it with new mapping which is > prone to mentioned race.
Oops, forgot to remove the "CHROMIUM" tag. Is that something that could be fixed when applying (if the patch is otherwise okay) or should I resend? Best regards, Tomasz -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
