On 03/27/2019 05:17 PM, luferry wrote: > > > > Actually, I just bought one vm from public cloud provider and run into this problem. > after reading code and compare pci device info, I reproduce this scenario. There is lack of vector issue when number of queues is more than maxcpus as well. https://lore.kernel.org/lkml/e4afe4c5-0262-4500-aeec-60f30734b4fc@default I was going to send out patch to fix that specific case on virtio side. BTW, is your VM's virtio mmio based or pci based? As mentioned in previous email, when I was playing with firecracker by amazon, the virtio-blk is mmio based. Not sure if that would lead to the lack of vector issue. Dongli Zhang
