On 10/13/24 7:27 PM, Ming Lei wrote: > Hello Guys, > > I got more and more reports on DMA debug warning "cacheline tracking EEXIST, > overlapping mappings aren't supported" in storage related tests: This is easily triggerable with dio and reusing a buffer. But it looks like this will only trigger if CONFIG_DMA_API_DEBUG is set, so should not be a prod issue? If so, I'd say that debug printk should be killed. Maybe turn it into a pr_warn_once() or something? -- Jens Axboe
