Finally figured out that the 'msi_irqs' directory can't show once the tg3 interface is down. When I make it up manually, the directory can appear.
So looks an invalide report. ** Changed in: linux (Ubuntu Xenial) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1553934 Title: xenial: 'msi_irqs' directory isn't show under pci device capable of MSI Status in linux package in Ubuntu: Invalid Status in linux source package in Xenial: Invalid Bug description: When I test xenial kernel about PCI function on one ARM64 box, I see the PCI device does work, and this device is shown with MSI capability. But the msi_irqs directory can't be found under: ./platform/soc/1f2b0000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/ When I trace the kernel and I found populate_msi_sysfs() is run successfully from this path(pci_enable_msi), but it looks weird. [1] lspci: 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5722 Gigabit Ethernet PCI Express Subsystem: Broadcom Corporation NetXtreme BCM5722 Gigabit Ethernet PCI Express Flags: bus master, fast devsel, latency 0, IRQ 93 Memory at c140000000 (64-bit, non-prefetchable) [size=64K] Capabilities: [48] Power Management version 3 Capabilities: [50] Vital Product Data Capabilities: [58] Vendor Specific Information: Len=78 <?> Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+ Capabilities: [d0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [13c] Virtual Channel Capabilities: [160] Device Serial Number 00-10-18-ff-fe-55-33-0d Capabilities: [16c] Power Budgeting <?> Kernel driver in use: tg3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553934/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp