On 2022/7/5 8:48, Shinichiro Kawasaki wrote: > On Jun 27, 2022 / 23:18, Christoph Hellwig wrote: >> On Tue, Jun 28, 2022 at 08:12:51AM +0200, Greg Kroah-Hartman wrote: >>> Ah, so it's a fake PCI device, or is it a real one? >> >> Whatever the blktests configuration points to. But even if it is >> "fake" that fake would come from the hypervisor. > > FYI, the WARN was observed with real PCI NVMe device also. I observed the WARN > with v5.19-rc1 and still observe with v5.19-rc5. I'm not sure which version > introduced the WARN. > > I once reported this failure, and shared with linux-pci list. > > https://lore.kernel.org/linux-block/20220614010907.bvbrgbz7nnvpnw5w@shindev/ > Hi Shinichiro, I wonder if the failure has been fixed? If so, could you tell me the fix patch? Best Regards, Xiao Yang