虚拟机EAL: Error reading from file descriptor

这个是虚拟机安装固有的BUG，代码差异如下：

1. diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
2. index d1ca26e..c46a00f 100644
3. --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
4. +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
5. @@-505,14+505,11@@ igbuio_pci_probe(struct pci_dev *dev,conststruct pci_device_id *id)
6. }
7. /* fall back to INTX */
8. case RTE_INTR_MODE_LEGACY:
9. -if(pci_intx_mask_supported(dev)){
10. - dev_dbg(&dev->dev,"using INTX");
11. - udev->info.irq_flags = IRQF_SHARED;
12. - udev->info.irq = dev->irq;
13. - udev->mode = RTE_INTR_MODE_LEGACY;
14. -break;
15. -}
16. - dev_notice(&dev->dev,"PCI INTX mask not supported\n");
17. + dev_dbg(&dev->dev,"using INTX");
18. + udev->info.irq_flags = IRQF_SHARED;
19. + udev->info.irq = dev->irq;
20. + udev->mode = RTE_INTR_MODE_LEGACY;
21. +break;
22. /* fall back to no IRQ */
23. case RTE_INTR_MODE_NONE:
24. udev->mode = RTE_INTR_MODE_NONE;

 

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