lzy Posted April 24, 2023 Share Posted April 24, 2023 I have a CX341a plugged into my motherboard with a split card. But I couldn't passthrough it to my openwrt vm, it always said that Failed to set up TRIGGER eventfd signaling for interrupt INTX-0: VFIO_DEVICE_SET_IRQS failure: Device or resource busy. I've tried to change the options of PCIe ACS but it didn't work. lzydiskstation-diagnostics-20230424-0840.zip Quote Link to comment
ghost82 Posted May 3, 2023 Share Posted May 3, 2023 Your issue is with irq conflicts: Apr 24 08:34:35 LZYDiskStation kernel: genirq: Flags mismatch irq 16. 00000000 (vfio-intx(0000:01:00.0)) vs. 00000080 (i801_smbus) where 01:00.0 (mellanox) conflicts with the SMBus. 1. update the bios (if any is available) and see if the irq conflict disappears 2. change the phisical slot of the mellanox and see if the irq conflict disappears 3. check in your bios if you can manually assign irqs to devices (I don't think you have this option..) If you aren't able to solve with these suggestions I think there's nothing more you can do.. 1 Quote Link to comment
lzy Posted May 10, 2023 Author Share Posted May 10, 2023 thank you for your solutions but my bios is up to date and my z490i doesn't have a second pcie slot. As for the last solution, obviously I can't change it mannually. I gave up to pass through the cx341a. Quote Link to comment
FANGSUNRAID Posted June 2, 2023 Share Posted June 2, 2023 I am having the same problem with MCX312 after replacing intel X520 da1. Sad to know there is nothing more can be done. Quote Link to comment
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