java.lang.IllegalStateException: failed to reset device

[surajnr-19]

Can you please tell me what should be the PCI forwarding address ?
0000:03:00.1 does not seem to work.

bash pktfwd/build/install/pktfwd/bin/pktfwd --batch-size 5 0000:03:00.0 0000:03:00.1
333 | main          | TRACE | UnsafeMemoryManager  | Making declared field inaccessible.
343 | main          | TRACE | UnsafeMemoryManager  | Making declared field inaccessible.
344 | main          | TRACE | tUnsafeMemoryManager | Created a smart Unsafe-based memory manager.
Exception in thread "Ixy Forwarder" java.lang.IllegalStateException: failed to reset device
        at de.tum.in.net.ixy.ixgbe.IxgbeDevice.resetLink(IxgbeDevice.java:179)
        at de.tum.in.net.ixy.ixgbe.IxgbeDevice.resetAndInitAll(IxgbeDevice.java:134)
        at de.tum.in.net.ixy.ixgbe.IxgbeDevice.configure(IxgbeDevice.java:455)
        at de.tum.in.net.ixy.forwarder.Main.forward(Main.java:143)
        at de.tum.in.net.ixy.forwarder.Main.main(Main.java:110)

[ackxolotl]

Did you unbind the device?

sudo sh -c 'echo 0000:03:00.0 > /sys/bus/pci/devices/0000:03:00.0/driver/unbind; echo 0000:03:00.1 > /sys/bus/pci/devices/0000:03:00.1/driver/unbind'

[emmericp]

Driver unbind should be done automatically in the Java driver.

Do you have an IOMMU enabled? You seem to be on an AMD system, not sure how the IOMMU works there; but I know there are some configurations where it's enabled by default.

We've also never tested anything but Debian, could be broken on other systems

[ackxolotl]

Driver unbind should be done automatically in the Java driver.

Oh, cool. Didn't know that.

Do you have an IOMMU enabled? You seem to be on an AMD system, not sure how the IOMMU works there; but I know there are some configurations where it's enabled by default.

AMD IOMMU works just the same way as the Intel IOMMU (at least on my system). Only difference is the boot parameter which is amd_iommu instead of intel_iommu. But even if the IOMMU is enabled at boot time, the driver should be working, shouldn't it?

[emmericp]

No, it doesn't work if the iommu is enabled